(j'o'vernment of India

Transcription

1 'GT0~ (j'o'vernment of India ~~~ Central Electricity Authority mt.pl atwr ~ ~ Western Regional Power Committee 1J;'Il-3, Q;l~ atr, \3lmT (~), ~ F-3, MIDe Area, Andheri (East), Mumbai ~ C("B"0i'r g ISO: ~ Phone: ; /95/96; ~ Fax: Website: ms-wrpc@nic.in SPEED POST "B gq~ 129cIT q~ ~I ~ Bfucrl2015- No. WRPC/29 th.;;,...,.,.". WRPC Mt9.lAS/2015/ S U I ~1ql ll, /To, ~~ Date: 2 Z (~~cf5~) (As per enclosed list) ~ g m"'cp1 ~ ~ ~ cfr 29 err ~ cfr Gh14CJ.d Sub.: Minutes of the 29 th meeting of Western Regional Power Committee ~/Sir, ~ q;r cf5m~ 24 ~ 2015, 10:00 ~ c r Aurangabad?f 0iIGl"IMd m- cmrit m'q11 atm:r ~ ~ cfr 29 err ~ ~ ~ ~ 23 ~ 2015, 10:00 ~ c r 0iIGl"IMd dghrchl (i~~gl'i ~ cfr ~ cfr Chl4cJd ~ ~ I Please find enclosed herewith the Minutes of the 29 th meeting of Western Regional Power Committee held on 24th July 2015 at 10:00 hrs preceded by TCC meeting on 23 rd July 2014 at 10:00 hrs at Aurangabad. Encl: As Above "'" faithfully, \ - (~ ~ 2OIGhHI;:g/S D Taksande) ~ ti"fuq(9)/member Secretary

2 List of members of WRPC Chairman, WRPC/CSPCL, RAIPUR Member (GO&D), CEA, New Delhi Managing Director, CSPTCL,Raipur Managing Director, CSPDCL, Raipur Managing Director, CSPGCL, Raipur Chief Engineer (LD), SLDC, Raipur Chairman, GSECL, Vadodara Managin Director, GSECL, Vadodara Managing Director, GETCO, Vadodara General Managing Director,DAKSHIN Gujarat vij.company 10 Ltd.Vadodara Chief Engineer (LD), SLDC, GETCO, Vadodara , Managing Director, MPPTCL, Jabalpur Chairman & Managing Director, MPPGCL, Jabalpur Chief Engineer-Commercial, Corporate office, MP PASCHIM 14 KVVCom.Ltd, Indore CE(LD), SLDC, MPPTCL, Jabalpur , Chairman & Managing Director, MSETCL, Mumbai / Chairman & Managing Director, MSEGCL, Mumbai , Chairman & Managing Director, MSEDCL, Mumbai Chief Engineer (LD), SLDC, MSETCL, Kalwa Chief Electrical Engineer, Electricity Dept., Goa Secretary(P), UT of Daman & Diu, Moti Daman , Secretary(P), UT of DNH, Silvassa Director (Comml.), NTPC Ltd., New Delhi Director (Operation), NPCIL, Mumbai , Director (Operation), PGCIL, Gurgaon Chief Executive Officer, NLDC, New Delhi General Manager, POSOCO, WRLDC, Mumbai Executive Director (O), Tata Power Company, Mumbai Managing Director, RGPPL, Noida Chief Executive Director, NHDC Ltd, Bhopal Executive Director, Torrent Power Generation, Surat Chief Operating Officer(O&M), Adani Power Ltd Ahmedabad Joint Managing Director, ACB(India)Ltd., Gurgaon Director, Adani Enterprises.Ltd(Energy Trader),Ahmedabad 35 CEO, Reliance Infrastructure Ltd, Borivali(W),Mumbai Director & CEO, JSW Energy Ltd.,New Delhi / Managing Director &CEO,Jindal Power Ltd.,Gurgaon Excutive Directo & CEO,Coastal Gujarat Power Ltd,Kutch Member Secretary, WRPC, Mumbai

3 List of members of TCC 1 Chairman, TCC & MANAGING DIRECTOR CSPGCL, RAIPUR Chief Engineer (GM), CEA, New Delhi Chief Engineer(Comml.), CSPDCL, Raipur Executive Director(O&M:Gen), CSPGCL, Raipur Executive Director(Gen.), GSECL, Vadodara Superintending Engineer (R & C), GETCO, Vadodara / Chief Engineer(IT &C&R),Dakshin Guj.Vij.Co.Ltd,Surat Executive Director (O&M-Gen), MPPGCL, Jabalpur Addl.C.E.(O),Corporate Office,MP PASCHIM KVVCom.L,Indore Director(Operation),MSETCL,Mumbai / Director (Operation), MSEGCL, Mumbai Director (Operation), MSEDCL, Mumbai Executive Engineer, DD, Nani Daman Executive Engineer, DNH, Silvassa Regional ED, NTPC Ltd., WRHQ-I, Mumbai Regional ED, NTPC Ltd., WRHQ-II, Raipur / Associated Director (Trans), NPCIL, Mumbai / Executive Director, WRTS-I, PGCIL, Nagpur Executive Director, WRTS-II, PGCIL, Vadodara Vice President, Tata Power Company, Mumbai , General Manager (Power), RGPPL, Ratnagiri General Manager, ISP, NHDC Ltd, Indore Executive Director (O&M), Torrent Power, Surat Sr.VP(OTS) / AGM(BD), Adani P0wer Ltd., Ahmedabad Sr.Vice President, ACB(India)Ltd., Gurgaon Director, Adani Enterprises.Ltd(Energy Trader),Ahmedabad 27 VP(O), Reliance Infrastructure Ltd, REMI,Andheri(E),Mumbai. 28 Senior Vice President,JSW Energy Ltd., Ratnagiri, President, Jindal Power Ltd., Chhattisgarh Chief (O&M),Coastal Gujarat Power Ltd,Kutch CMD, MPPMCL Jabalpur , Member (Power), NCA, Indore Copy to 1 Member Secretary, ERPC, Kolkata Member Secretary, SRPC, Bengaluru Member Secretary, NERPC, Shillong Member Secretary, NRPC, New Delhi ,

4 Baart sarkar Government of India kond`iya ivavut p`aiqakrna Central Electricity Authority piscama xao~iya ivavut saimait WESTERN REGIONAL POWER COMMITTEE p xao iva sa ki idnaamk 23 jaulaa[- evam 24 jaulaa[ kao Aurangabad maom Aayaaoijat 29 vai baozk ki kaya-vart MINUTES OF 29 th MEETING OF TCC/WRPC HELD ON 23 rd & 24 th JULY 2015 AT AURANGABAD Hosted by NPCIL maumba[- MUMBAI

5 C O N T E N T S ITEM NO. ITEM NO.1 ITEM NO.2 PARTICULARS CONFIRMATION OF THE MINUTES OF THE 28 TH MEETING OF WRP COMMITTEE SYSTEM STRENGTHENING PAGE NO 4 6 ITEM NO.3 UTILIZATION OF PUMPED STORAGE STATIONS IN PUMPING MODE DURING OFF-PEAK HOURS 11 ITEM NO.4 SCHEDULING OF SOLAR POWER THROUGH INTERSTATE BILATERAL TRANSACTION 15 ITEM NO.5 SCHEDULING OF 10 MW ALLOCATION OF POWER TO BARC FACILITIES (TAPS 3 &4) FROM NPCIL TAPS 3&4 18 ITEM NO.6 FUNDING FROM PSDF 21 ITEM NO.7 ITEM NO.8 REVISION OF DSM ACCOUNTS AND PAYMENT OF INTEREST THEREOF & STOA REVISIONS ROCUREMENT OF ERS SUBSTATION/SYSTEM OF 00/220/33KV ITEM NO.9A PROGRESS OF EMS / SCADA REPLACEMENT 31 ITEM NO.9B MASTER PLAN COMMUNICATION 32 ITEM NO.10 ITEM NO.11 ITEM NO.12.1 UNIFIED REAL TIME DYNAMIC STATE MEASUREMENT (URTDSM) TESTING OF SPS ENVISAGED FOR SR-NEW GRID OPERATION AND 765 KV AGRA-GWALIOR LINES SPS FOR AGRA-GWALIOR MOCK TESTING OF SPS ENVISAGED FOR BACKING DOWN OF GENERATION IN WR ITEM NO.12.2 REVIEW OF SPS FOR CGPL MUNDRA 39 ITEM NO.12.3 ISLANDING SCHEMES FOR TAPS 1 & 2 AND TAPS 3 & 4 40 ITEM NO.13 DEVIATION SETTLEMENT MECHANISM AND RELATED MATTERS (FIRST AMENDMENT) REGULATIONS, 2014 DATED TH DECEMBER 2014 ITEM NO.14 HON BLE CERCS REGULATIONS 43 ITEM NO.15 READINESS OF SLDC AT GOA, OTHER SLDCS AND WRLDC 47 ITEM NO.16 DECLARATION OF TRANSMISSION ELEMENTS INTO COMMERCIAL OPERATION BY ISTS LICENCEES 47

6 ITEM NO.17 DECLARATION OF ISGS IN TO COMMERCIAL OPERATION 47 ITEM NO.18 GRANT OF MTOA AND LTOA BY POWERGRID 48 ITEM NO.19 STATUS OF LETTER OF CREDIT(LC) OPENING AGAINST DEVIATION CHARGES LIABILITY FOR ITEM NO.20.1 STATUS OF DEVIATION CHARGES 50 ITEM NO.20.2 STATUS OF REACTIVE ENERGY CHARGES 50 ITEM NO.20.3 STATUS OF RECONCILIATION OF DEVIATION AND REC POOL ACCOUNT FOR THE PERIOD JAN 15 TO MAR ITEM NO.20.4 INTEREST CALCULATION STATEMENT OF DEVIATION POOL ACCOUNT FOR THE PERIOD FROM 1 ST APR 2015 TO 30 TH 52 JUN 2015 ITEM NO.21 PERFORMANCE OF WR GRID DURING FEBRUARY 2015 TO JUNE ITEM NO.22 ANTICIPATED POWER SUPPLY POSITION IN WESTERN REGION FOR THE PERIOD FROM JULY 2015 TO SEPTEMBER ITEM NO.23 STATUS OF COMPLETION OF 765/400 KV AND ABOVE ON GOING TRANSMISSION SCHEMES BEING 56 EXECUTED/IMPLEMENTED BY TRANSMISSION AGENCIES ITEM NO.24 STATUS OF COMPLETION OF 765/400 KV AND ABOVE ON GOING TRANSMISSION SCHEMES BEING 59 EXECUTED/IMPLEMENTED BY TRANSMISSION AGENCIES ITEM NO.25 WRPC MEMBERSHIP FOR RATTANINDIA POWER LIMITED 60 ITEM NO.SA1 ITEM NO.SA2 CONFIRMATION OF THE MINUTES OF THE 28TH MEETING OF WRP COMMITTEE INSTALLATION OF POLYMER INSULATORS ON NEW TRANSMISSION LINES ITEM NO.SA3 ALLOCATION OF URS FROM CGPL UNITS 62 ITEM NO.SA4 SCHEMES APPROVED IN THE 38TH SCM OF WR HELD ON AT NEW DELHI 64 ITEM NO.26 ANY OTHER ITEM 65 ITEM NO.27 DATE AND VENUE OF NEXT WRPC MEETING 65

7 ANNEXURES ANNEXURE ANNEXURE -1A&B ANNEXURE -3 LIST OF PARTICIPENTS PARTICULARS REPORT ON PUMP MODE OPERATION OF KADANA HYDRO UNITS ANNEXURE -13 ANNEXURE - 15 ANNEXURE ANNEXURE - 18 ANNEXURE - 20 ANNEXURE 20A ANNEXURE- 21.1(a) ANNEXURE-21.1 (b). ANNEXURE ANNEXURE-21.3 ANNEXURE-22 PRESENTATION FROM SLDC MAHARASHTRA STATUS OF PROGRESS OF SLDC S & BACK-UP SLDC S OF WR CONSTITUENTS /WRLDC LIST OF TRANSMISSION ELEMENTS COMMISSIONED DURING THE PERIOD TO THE LIST OF LTOAS/MTOAS RECEIVED FROM NLDC AND APPLICABLE FROM THE MONTH OF JUNE-15 FOR COMPUTATION OF RTA DEVIATION CHARGES PAYABLE/RECEIVABLE BY WR ENTITIES TO WR DEVIATION POOL ACCOUNT FUND MAINTAINED BY WRLDC AS ON 07 TH JULY 15 PAYABLE/RECEIVABLE BY WR ENTITIES TO REACTIVE POOL ACCOUNT FUND MAINTAINED BY WRLDC AS ON 07 TH JULY 15 FREQUENCY PROFILE DEMAND PROFILE VOLTAGE PROFILE AULF STATUS ANTICIPATED POWER SUPPLY POSITION ANNEXURE- 25 WRPC MEMBERSHIP FOR RATTANINDIA POWER LTD. ************************

8 MINUTES OF THE 29 th MEETING OF WESTERN REGIONAL POWER COMMITTEE HELD ON 24 TH JULY 2015 (FRIDAY) PRECEDED BY TCC MEETING ON 23 RD JULY 2015(THURSDAY) AT AURANGABAD (MAHARASHTRA) The 29 th WRPC meeting was held on 24 th July 2015 at Aurangabad.. It was preceded by the TCC on 23 rd July2015. The meeting was hosted by NPCIL. The list of participants of the TCC and WRPC meeting is placed at Annex 1(a) and 1(b) respectively. On behalf of TCC Chairperson, Shri Shashi Bhushan Agrawal, Minutes of 29 th meeting of WRPC held on at Aurangabad 1 TCC was chaired by Shri Vijay Singh, MD, CSPTCL, as TCC Chairperson could not attend due to important urgent work in the State. In his opening remarks he welcomed the participants to the TCC/WRPC meeting. He stated that power sector plays an important role in the nation s economic growth. He informed that WRPC forum plays an important role as generators, transmission operators and distribution companies along with Traders and Load dispatchers and the Secretariat who come together to discuss the various co-ordination issues. He briefed the TCC about the performance of the WR grid for the period from March 2015 to July He thanked the host NPCIL for making wonderful arrangements for the meeting. The TCC discussed the agenda items of WRPC meeting and put forth the recommendations of TCC Discussions to WRPC forum the next day. In the absence of WRPC Chairperson Shri Shivraj Singh, WRPC meeting was chaired by Shri Vijay Singh, MD, CSPTCL. Shri Shivraj Singh Chaiman WRPC could not attend the meeting due to last moment other urgent official work. meeting. Shri Vijay Singh, MD, CSPTCL welcomed the participants to the Shri Preman Dinaraj, Director(Fin), NPCIL as host of the meeting, welcomed the participants to the meeting. He stated that he was happy that NPCIL had been given this opportunity to host the meeting at Aurangabad. A brief and informative video clip of NPCIL was presented before the members. Director(Fin), gave a very informative talk on the nuclear safety aspects and the new technological aspects that are envisaged in the nuclear technology

9 and being adopted by NPCIL. He informed that NPCIL is following world standards with respect to safety in nuclear power plant operation. Shri S.D.Taksande, Member Secretary, WRPC welcomed participants to the TCC/WRPC. He placed on record the contributions of outgoing TCC and WRPC members since the last WRPC meeting. He welcomed the incoming TCC/WRPC members. (A) List of Incoming and Outgoing WRPC Members Sl.No. Name of Organisation Name & Designation of Incoming Members 1 Chaatisgarh State Shri Shivraj Singh,IAS Power Cos.Ltd Raipur. Chairman,WRPC 2 CSPDCL, Raipur. Shri Ankit Anand,IAS Managing Director 3 MPPTCL,Jabalpur. Shri Ravi Sethi, Managing Director 4 MSETCL,Mumbai Shri Rajeev Kumar Mital, IAS, CMD 5 MSEGCL,Mumbai Shri Bipin Shrimali, IAS CMD 6 MSEDCL,Mumbai. Shri O.P.Gupta, CMD. 7 SLDC, MSETCL, Shri Sanjay Kulkarni, Kalwa. CE(LD) 8 Jindal Power Ltd, Shri K.K.agarwal, Gurgaon. CEO 9 Rotation Member of Shri P.K.Solanki, Gujarat Discom MD, Dakshin Gujarat Vij Company Ltd, Surat. 10 Rotation Member of MP Discom Shri Kailash Shiva, Chief Engineer (Commercial) M.P.Paschim Kshetra Vidyut Vitaran Co.Ltd., Indore 11 Other Gencos Shri Virsen Sindhu, Joint Managing Director ACB India Ltd.,Gurgaon. 12 Traders Shri Anshul Garg Adani Enterprises Ltd, Gurgaon. Name & Designation of Outgoing Members Shri I.C.P.Keshari, IAS Chairman, WRPC Shri Subodh Kumar Singh,IAS, Managing Director Shri Umesh Rautji, Managing Director Shri Bipin Shrimali, IAS CMD Shri Asheesh Sharma,IAS CMD Shri Ajoy Mehta, CMD. Shri Jayant Weekay CE(LD) Shri R.S.Sharma, MD&CEO Shri S.B.Khyalia, MD, Madhya Gujarat Vij.Co.Ltd., Vadodara. Shri Sukhveer Singh,IAS, MD, M.P.Poorv Kshtra Vidyut Vitaran Co.Ltd., Jabalpur. Shri Tushar Bhatt, Sr.Vice President, Essar Power Ltd., Hazira,Gujarat. Shri Rajesh Mahajan, Executive Director, Knowledge Infrastructure Systems Pvt.Ltd, New Delhi. Minutes of 29 th meeting of WRPC held on at Aurangabad 2

10 13 Rotation member of Private Discom Shri R.R.Mehta, CEO, Reliance Infrastructure Ltd., Borivali(W),Mumbai. 14 Other Gencos Shri Krishna Kumar Sharma Executive Director &CEO Coastal Gujarat Power Ltd, Kutch,Gujarat. Dr. Jagdish Patil,IAS General Manager, BEST Undertaking,Mumbai. (B) List of Incoming and Outgoing TCC Members Sl.No. Name of Organisation Name & Designation of Incoming Members 1 Chhatisgarh State Power Shri Shashi Bhushan Generation Company Agrawal Ltd, Chairman,TCC Raipur 2 MPPGCL, Jabalpur Shri A.K.Sankule, Executive Director (O&M) 3 SLDC, MSETCL, Kalwa. Shri Sanjay Kulkarni, CE(LD) 4 Rotation Member of Gujarat Discom 5 Rotation Member of MP Discom Smt.Samta A.Naik, Chief Engineer(IT & C&R) Dakshin Gujarat Vij Company Ltd, Surat. Shri Kailash Shiva, Chief Engineer (Commercial) M.P.Paschim Kshetra Vidyut Vitaran Co.Ltd., Indore 6 Other Gencos Shri H.M.Jain, Sr.Vice President (Power) ACB India Ltd.,Gurgaon. 7 Traders Shri Anshul Garg Adani Enterprises Ltd, Gurgaon. 8 Rotation member of Private Discom Shri Avinash Waghambare Vice President (Operations) Reliance Infrastructure Ltd., Borivali(W),Mumbai. 9 Other Gencos Shri Dinesh Kudalkar, Chief O&M, Coastal Gujarat Power Ltd, Kutch,Gujarat. Name & Designation of Outgoing Members Shri Manu Shrivastava,IAS Chairman,TCC. Shri Kaseel Ahmed, Chief Engineer Shri Jayant Weekay CE(LD) Shri Y.B.Sukhadia, Chief Engineer (Project) Madhya Gujarat Vij.Co.Ltd., Vadodara. Shri P.K.Singh, Chief Gen.Manager, M.P.Poorv Kshtra Vidyut Vitaran Co.Ltd., Jabalpur. Shri Nilay Dave, Joint Gen.Manager, Essar Power Ltd., Hazira,Gujarat. Shri Rajesh Mahajan, Executive Director, Knowledge Infrastructure Systems Pvt.Ltd, New Delhi. Shri S.R.Khedkar, Deputy General Manager, BEST Undertaking Mumbai. New member Minutes of 29 th meeting of WRPC held on at Aurangabad 3

11 Thereafter the items of main agenda notes along with four supplementary agenda items were taken for discussion. ITEM No.1: CONFIRMATION OF THE MINUTES OF THE 28 TH MEETING OF WRP COMMITTEE The minutes of 28 TH meeting of WRP Committee held on 4 TH March 2015 at Udaipur were forwarded to the members vide letter No. WRPC/28 th WRPC Mtg./AS/2015/3176 dated MS, WRPC informed that following comments have been received. A. AGM(AM), PGCIL vide letter dated requested for following corrigendum in para 8 of Item no.5 at Page 12 of the minutes of the 28 th meeting of WRPC: QUOTE: GM-PGCIL(HO), informed that in Southern Region, PGCIL had utilized 400kV ERS substation and charged 220 kv system in cyclone affected areas and loads of MW were restored. Hence he opined that 400 kv ERS substation is essential. UNQUOTE: He requested for following replacements in place of above para: GM-PGCIL(HO), informed that subsequent to cyclone Hud-Hud in Southern region, SRPC during its 26 th meeting on had approved procurement of one set of 400/220/33kV ERS Substation. TCC recommended the modification in MOM and WRPC agreed to the modification of the minutes. B. GM(OS & Comml), WR-1 HQ, Mumbai vide dated requested for insertion of following lines on page no13 in Item No. 13, TCC discussions point no2, 8th line in the MoM of 28 th WRPC meeting. Quote: Minutes of 29 th meeting of WRPC held on at Aurangabad 4

12 2) TCC discussed the documentation required for COD as per contractual obligations and regulatory provisons, as different cases had to provide different sets of documentation. From this point of view of COD, for generators under the purview of Section 62 (where the tariff is approved by a Regulator) the COD shall be as per the provisions of Terms and Conditions of Tariff , if CERC has determined the tariff. It was noted that this includes cases like NTPC generators and also generators like Torrent Power whose tariff is determined by CERC. If tariff is determined by State Regulator (under Section 62), then whatever conditions of COD are mentioned by the Regulator, the same shall be complied with. If it is not explicitly mentioned in such cases, it is suggested that it should follow the COD norms as given Terms and Conditions of Tariff Unquote: After insertion of request made by NTPC, the above quoted lines become as follows: 2) TCC discussed the documentation required for COD as per contractual obligations and regulatory provisons, as different cases had to provide different sets of documentation. From this point of view of COD, for generators under the purview of Section 62 (where the tariff is approved by a Regulator) the COD shall be as per the provisions of Terms and Conditions of Tariff , if CERC has determined the tariff. It was noted that this includes cases like NTPC generators and also generators like Torrent Power whose tariff is determined by CERC. As per the prevailing Tariff Regulations the requisite certificate is to be submitted by the company to the respective RPC and RLDC, and no other document is required to be submitted, as this provision would not be applicable for NTPC and to the Generators under the perview of section 62 of IE act If tariff is determined by State Regulator (under Section 62), then whatever conditions of COD are mentioned by the Regulator, the same shall be complied with. If it is not explicitly mentioned in such cases, it is suggested that it should follow the COD norms as given Terms and Conditions of Tariff TCC recommended the modification in MOM and WRPC agreed to the modification of the minutes. Minutes of 29 th meeting of WRPC held on at Aurangabad 5

13 C. WRLDC requested following insertion in MOM at the end of Item. No 13 of the 28 th WRPC meeting MoM. Nevertheless, if a generator is in the control area of WRLDC and if no PPA clause exists, irrespective of tariff determination by SERC/CERC, the norms for CERC for declaration of COD shall be followed. TCC recommended the modification in MOM and WRPC agreed to the modification of the minutes. D. GM(Asset Management), PGCIL Gudgaon vide letter dated intimated that with reference to para 2.3 of Item no.2 at Page 5 of the minutes of the 28 th meeting of WRPC held on Following is recorded in the above mentioned minutes: Member Secretary WRPC informed TCC that POWERGRID s 765/400/220 kv substation at Aurangabad was commissioned in January, 2014 and in operation from the above date. The ICT 765/400 kv and also 400/220 kv is not operating since the last one year. The same may be modified as under: Member Secretary WRPC informed TCC that POWERGRID s 765/400/220 kv substation at Aurangabad was commissioned in January, 2014 and is in operation from the above date. The 765/400 kv ICT and 400/220 kv ICTs are in operation since the last one year. TCC recommended the modification in MOM and WRPC agreed to the modification of the minutes. ITEM NO 2 : SYSTEM STRENGTHENING 2.1 Conversion of fixed Reactor to switchable Reactor; Member Secretary, WRPC informed that during 28 th WRPC/TCC meeting, PGCIL had proposed that fixed Line Reactors installed in following lines be converted to switchable Line Reactors so that they could be utilised as Bus Minutes of 29 th meeting of WRPC held on at Aurangabad 6

14 Reactors when line is out, which may be required to maintain Voltage profile. The list of such lines with reactors that require to be converted to switchable line reactors are at the following locations : Sr. Line Name No. 1 Bina- Shujalpur-I 2 Bina- Shujalpur-II 3 Bhadravati- Dhariwal Length (CKm) Capacity Switchable(S)/ Fixed(F) % compensation End1 End2 End1 End S F S F F 636 During 28th WRPC/TCC, it was recommended to convert the above fixed line reactors as switchable reactors without any system study. TCC: During TCC, PGCIL representative stated that they anticipated dynamic overvoltage problems and therefore referred the matter to the Standing Committee on PSP. However it could not be taken in the recent SCM. TCC discussed the issue but it was difficult to comprehend the need for dynamic overvoltage studies as only a switching breaker is introduced. PGCIL representative pointed out that providing breakers would require SCM recommendation for investment approval. MS WRPC pointed out that in that case PGCIL may take SCM approval and put up in the WRPC meeting and 28 th WRPC approval to go ahead without studies may be cancelled. WRPC: Director(O),PGCIL proposed that PGCIL may go ahead with the proposal based on the 28 th WRPC approval and get a ratification from the next SCM and inform the same in the next WRPC meeting after SCM approval. WRPC agreed to suggestion of PGCIL. Minutes of 29 th meeting of WRPC held on at Aurangabad 7

15 2.2 Extension on 220 kv Network at GIS Navi Mumbai station Background: During 28 th WRPC/TCC meeting, Member Secretary WRPC informed that POWERGRID had communicated that 400 kv GIS at Navi Mumbai is likely to be commissioned by the end of May, 2015, as the cable laying works are in full swing and shall be completed before March 15. Further they requested MSETCL to extend 220 kv grid from Navi Mumbai GIS station to their load centers. Accordingly MSETCL was requested to indicate the progress for installation of 220 kv line from GIS Navi Mumbai. During TCC Director, MSETCL enquired about the status of the incoming source of 400 kv Vapi-Navi Mumbai at Navi Mumbai station. It was informed by GM PGCIL(HO) that 400 kv Vapi-Navi Mumbai line is not coming, and this was already reported at Standing Committee meetings. With the line not coming to Navi Mumbai, Director MSETCL informed that the substation was not beneficial to Maharashtra system, as there is no source of input power to Maharashtra grid. Hence laying 220 kv network from MSETCL system to Navi Mumbai would only mean unnecessary congestion in Maharashtra system and only charging of substation at Navi Mumbai. Further with respect to LILO of 400 kv Lonikhand-Kalwa MSETCL line at Navi Mumbai. ED-WR1, PGCIL informed that the cable work is in advanced stages of completion, and the same would be ready by May end along with the substation. Director, MSETCL requested for relocation of the asset of GIS Navi Mumbai to more useful place for better utilization of the same as the existing asset is not serving any useful purpose to Maharashtra system. GM PGCIL(HO) informed that these projects have been executed after due approvals from competent authorities. Further progress and problems faced have been reported at SCM. At this stage it is not possible for them to consider any relocation of asset. Minutes of 29 th meeting of WRPC held on at Aurangabad 8

16 During the 28 th WRPC Meeting, Executive Director, MSETCL explained Maharashtra s position with respect to relocation of asset, as already given above, and requested to take the matter to CEA before taking a decision. AGM-PGCIL(HO) explained that the non availability of 400 kv Vapi-Navi Mumbai was informed to SCM. However at that time Navi Mumbai was not discussed for relocation. A decision to relocate Navi Mumbai could have been taken at that time itself, in that case, before award of any contract. However since the project has since been in advance stage of completion, at this stage it was not acceptable to relocate. She pointed out that relocation of an asset is much more costly than establishing a new asset. There are experiences of Sasaram HVDC being thought of relocation but that was not feasible and given up. However it may be beneficial to replan the network in that area, so that the asset can be utilized. Hence the substation should be allowed to be charged. Regarding the issue of charging of the substation, Director, MSETCL stated that since the asset is not beneficial at all, charging would unnecessary commercially burden the Maharashtra consumer with no benefits. This could not be permitted. If however there is benefit after re planning, the issue of charging can be thought of. Hence matter requires discussion with CEA. AGM-PGCIL(HO) explained that non charging of PGCIL asset, when it has been created after due approvals cannot be acceptable to PGCIL. PGCIL requested that the station be allowed to charge. But this was not acceptable to Maharashtra, as there is no benefit to their system. During the 28 th WRPC meeting Chairperson, WRPC suggested to take up the issue with CEA by MSETCL and PGCIL with respect to utilization of the substation as well as charging. TCC/WRPC: Member Secretary, WRPC informed that the above matter was deliberated in the SCM and he appraised of the the above agenda position. The SCM decided to form a group of representatives from CEA, POWERGRID, MSETCL and would look into the alternative arrangement of Minutes of 29 th meeting of WRPC held on at Aurangabad 9

17 feeds to Navi Mumbai station. MS, WRPC informed that any progress on the same would be intimated to WRPC. WRPC noted kv Extension feeders at 765/400 kv/220 kv sub-station at Aurangbad. Background: During 28 th WRPC/TCC meeting, Member Secretary WRPC informed that POWERGRID s 765/400/220 kv sub-station at Aurangabad was commissioned in January, 2014 and in operation from the above date. The ICT 765/400 kv is loaded but 400/220 kv is charged. Further, there is no 220 kv network to cater the load of Aurangabad sub-station to nearby load centres. MSETCL was requested to make the construction of 220 kv lines at the earliest so that the load can be catered through POWERGRID s sub-station at Aurangabad to different load centres in Maharashtra. Director, MSETCL informed that 220 kv Chitegaon-Shendra evacuation line at Aurangabad shall be completed in about six months time. TCC/WRPC: Director, MSETCL informed that for the 220 kv Chitegaon- Shendra evacuation line at Aurangabad tender has been floated. It is expected that line shall be completed in about six months after award. WRPC noted. 2.4 Readiness of Kudus sub-station : Background: During 28 th WRPC/TCC meeting, Member Secretary WRPC informed that MSETCL is constructing Kudus sub-station near Padghe. POWERGRID s 765 kv/400 kv GIS Padghe sub-station is likely to be commissioned in May/June,2015. The 400 kv line from Powergrid Padghe GIS station is likely to be completed by the end of May, In order to evacuate power from POWERGRID sub-station, MSETCL has to keep ready Kudus station by May, Director MSETCL informed that outgoing feeders at Kudus along with Kudus substation is expected to be completed in about one year time (by June 2016). Minutes of 29 th meeting of WRPC held on at Aurangabad 10

18 TCC/WRPC : POWERGRID/CTU representative informed that as per the original scheme 400kV D/C from Tarapur is planned to 400kV Kudus and 400kV Kudus to 400 kv Padghe GIS of Powergrid. It was also informed that the 400kV line from Powergrid Padghe GIS station would be completed by October Therefore in the 38 th SCM it was decided that since Kudus S/S is expected to be commissioned by June 16, as an interim arrangement the 400kV D/C lines from Tarapur S/S be terminated at Nagothane S/S, by passing 400kV Padghe. WRPC noted. ITEM NO 3 : UTILIZATION OF PUMPED STORAGE STATIONS IN PUMPING MODE DURING OFF-PEAK HOURS Background: With growing self-sufficiency in the Western Regional grid, the peak energy shortage in WR have reduced. However, it is observed that the difference between the demand met during off-peak and peak hours has increased. On normal days the difference is around MW which may further increase during inclement weather / exceptional days. In order to ensure balance between load and generation, the generation is required to be backed down during off-peak hours and picked up during peaking hours. With the pressure to maintain uninterrupted power supply to the customers along with rising penetration of Renewable Energy Sources in the Grid, the need for flexible generation (load -following, fast ramp-down, fast ramping up) would accentuate further. These emerging challenges in grid operation call for enhancing the flexibility of existing fleet of conventional generation and also exploit the available facilities for energy storage and spinning reserve in the form of Pumped Storage hydro stations. Operation of available capacity of Pumped Storage hydro plants in pumping mode would provide the following advantages as elaborated in the CBIP Publication No. 265 titled Pumped Storage in India (Nov 1997): a) Would enable storage of electrical energy into potential energy during off-peak hours for utilization during peak hours Minutes of 29 th meeting of WRPC held on at Aurangabad 11

19 b) Provides a dynamic load during off-peak hours and thus helps in reducing difference between Maximum and Minimum Load in the system c) Limits the quantum of variation in despatch schedule of thermal stations, thus would help in enhancing efficiency of thermal stations d) Would provide spinning reserve in the grid due to its flexibility to quickly change over from motoring mode to generation mode e) Would help in voltage and power factor correction f) Improved System Reliability The CEA report on Large Scale Grid Integration of Renewable Energy Sources- Way Forward issued in November 2013 also emphasizes the need for exploitation of pumped storage hydro stations. The report lists various existing and envisaged PSP schemes in all the States. The status of pumped storage hydro capacity in Western Region is as under: Station Capacity State Pumped Storage commissioned Capability of working in pumping mode Whether being operated in pumping mode 1 Paithon (Jayakwadi) 1x12 Maharashtra Yes Yes Yes 2 Ujjaini 1x12 Maharashtra Yes Yes 3 Bhivpuri 1x90 Maharashtra No No No 4 Bhira 1x150 Maharashtra Yes Yes 5 Ghatghar 2x125 Maharashtra Yes Yes Yes 6 Sardar Sarovar 6x200 Gujarat No 7 Kadana-I 2x60 Gujarat Yes Yes 8 Kadana-II 2x60 Gujarat Yes Yes Tail race reservoir (Garudeshwar) to be completed : Target-18 months Minutes of 29 th meeting of WRPC held on at Aurangabad 12 Not possible as there is no ample storage capacity No. As most of the time full water is there. White paper on the same to be presented by NCA Vibration problems are being investigated. Vibration problems are being investigated.

20 Envisaged PSP schemes: Maharashtra: Koyna left bank (2x40 MW), Malsej Ghat (700 MW) and Humbarli 400 MW) Madhya Pradesh: Mara (1100 MW) an d Binauda (2250 MW) : No information from MP whether these project exist as indicated in 468 th OCC. Apart from utilization of the existing stations in pumping mode there is a need to expedite the commissioning of envisaged PSP schemes in the region. 28 th WRPC/TCC Discussion: During the discussion, CE,SLDC,GETCO pointed out that they are following the matter at Kadana HPS. Vibration problems are being faced when the same was operated earlier in PSP. The matter has been taken up with their Genco. Also telemetry facility is available. They shall report the progress in OCC. The detailed report for exploration PSP of KHPS submitted by Gujarat is attached at Annexure -3 In case of Bhivpuri, Head(PSCC),TPC pointed that they are not having pumped storage. In case of Bhira, the plant operates for more than 10 hrs a day in generator mode. Hence even if water is pumped back it can be utilised in off peak hours only. There are commercial mechanisms also that requires to be addressed. Also water levels are quite sufficient and they feel PSP at Bhira is not needed.. In case of Maharashtra, CE,SLDC,Kalwa informed that Paithon and Ghatghar are being operated in Pumped storage mode. Regarding PSP at Ujni facility exists, but due to commercial reasons it is not operated in PSP mode. In case of SSP, Member, NCA informed that Garudeshwar reservoir is being constructed in about 18 months time. With that the SSP RBPH machines can be operated in Pumped storage mode. However this being a shared project, the beneficiaries shall have to agree on the usage of pumped storage mode of operation. Initially all had agreed for PSP operation, however MP later on backed out due to commercial reasons. Presently in principle Gujarat has Minutes of 29 th meeting of WRPC held on at Aurangabad 13

21 agreed. But MP and Maharashtra have expressed certain reservations. These matter is being discussed in NCA forum. Director(Comml) MPPMCL informed that commercial problems are envisaged due to PSP for which MP had backed out. Director(Opn), MSEDCL informed that the commercial implications of PSP at SSP is not known. Hence they cannot comment in this forum. However they are willing to discuss the issue and have a relook on the situation, if need be. MS WRPC pointed out that commercial aspects of pumping cannot be studied in isolation, but also requires to be studied along with necessary DSM charges paid by the utility at the time of pumping. It would certainly reduce the DSM charges along with capping in off peak hours, nullifying the commercial impact of pumping up the water. It may be even be economical to use PSP in off peak hours. Hence commercial aspects of such operation should be studied CE,SLDC GETCO stated that commercial issues and sharing of charges of PSP in Gujarat Discoms were discussed internally and the mechanism of how it could be shared may be also brought to the notice of all when PSP is studied in detail. Member Secretary, WRPC suggested that NCA may list all the difficulties mentioned and bring out a White Paper and discuss the same in a separate meeting. Similarly commercial aspects of PSP may also be discussed in that meeting for all the above units with PSP feasibility. Subsequently the matter was discussed in 56 th PSC of NCA wherein it was intimated by SSCAC that the probable completion date for work of Garudeshwar reservoir is and PSS will be operational probably in Janury It was agreed that a white paper on the PSS operation at SSP will be finalised after taking into account various possible situations which may arise in real time and will be discussed in the next PSC of NCA. After incorporating the comments and view on the paper the same shall Minutes of 29 th meeting of WRPC held on at Aurangabad 14

22 be forwarded to WRPC. TCC: The updated status of Pumped storage facilities existing is already given in the above table. NCA representative informed that white paper is under preparation and shall be put up first to NCA Power sub-committee meeting. GETCO representative informed that SLDC had visited Kadana and there were some vibration problems that are being investigated. GETCO shall revert once these problems are resolved. Regarding Envisaged PSP at Mahagenco representative Koyna left Bank(2 x 40 MW), Humbarli these are not planned. Similarly in MP for Mara (1100 MW) and Binauda (2250 MW) these projects as well as PSP is not planned. It appears that these details for envisaged PSP were from planning perspective. Hence the same were deleted from discussion till further development. MS WRPC concluded that existing (and working as per requirement ) Pumped Storage Plants are at Paithan and Bhira. At Kadana PSP vibration problems needs to be addressed. For NCA white paper shall be discussed in NCA Power sub committee and then will be put up to WRPC. WRPC noted. ITEM No.4: SCHEDULING OF SOLAR POWER THROUGH INTERSTATE BILATERAL TRANSACTION 4.1. Back ground: In the 69 th CCM CE SLDC Gujarat had informed that the Inter state bilateral transaction for sale of power from M/s. Jaydeep Cotton Fiber Pvt. Ltd. (JCFPL) to Goa under Short Term Open Access has commenced from and elaborated the various issues w.r.t scheduling of solar power in their letter Gujsldc/SCH/F-12/132 and suggested replacing Schedule with actual generation. The Committee felt that the scheduling on the above suggestion of SLDC Gujarat can only be done if Hon ble CERC gives directions aligned with the suggestion 4.2. CE SLDC Gujarat vide their letter GETCO/SLDC/4501 dated Minutes of 29 th meeting of WRPC held on at Aurangabad 15

23 informed that the Interstate bilateral transaction for sale of power from M/s Jaydeep cotton fibre Pvt Ltd (JCFPL) to Goa is through NVVN, and prior to scheduling of the said power under STOA WRLDC has conveyed to Gujarat SLDC as under for M/s JCFPL 1. No POC charges and losses for solar power for CTU system. 2. If there is no UI/DSM for solar generation in the state of Gujarat, the same may be taken care at their end. 3. WRLDC shall not carry out any post facto revision by making SG=AG. Two more solar generators M/s Gujarat State Electricity Ltd and M/s Gujarat Power Corporation Ltd, both having 10MW installed capacity of Solar Power have commenced the sale of solar power under Inter State Bilateral transaction to GRIDCO, Odhisa through SECI wef In total three solar plants are selling about MW p o w e r under Interstate Bilateral Transaction. In f u t u r e number of solar and wind generators may come up for such transactions. Since the commercial mechanism under RRF is suspended, t h e implications for DSM charges on the State due to deviation cannot be settled. Hence, the actual generation be treated as schedules for such generators. The above was discussed again in the 70 th CCM, since SLDCs are receiving application for solar power inter-state transactions. The sub- Committee felt that in view of suspension of the commercial mechanism under RRF regulations and the provisions of the CERC regulations in vogue, it would not be possible to post facto revise the schedules to the actual generation in case of the solar power plants and therefore the States may take up the matter with CERC for further directions. TCC: Member Secretary informed that cases of inter-state solar transactions have been processed in WR. He observed that with the RRF mechanism being suspended, the state where the solar generation is located (and passing the transaction to another state), is unnecessarily suffering the DSM charges. He requested that a discussion on whether it is possible to make the Scheduled Generation equal to Actual Generation for solar bilateral transactions in WR may be taken. Minutes of 29 th meeting of WRPC held on at Aurangabad 16

24 TCC members discussed the issue in length. From the discussion following points merited the taking of the SG=AG. 1) The state where solar generation is located unnecessarily faces DSM charges. 2) RRF mechanism is suspended and there is no role at present for Renewables to limit their deviation. Till such time making SG=AG for Solar bilateral inter-state transactions would be desirable. 3) In case of solar the deviations are much less than wind and so can be taken up for SG=AG. 4) GETCO informed that in GETCO similar practice is adopted for intrastate solar. Same should be extended on Regional basis 5) In case the transaction is such that WR is receiving Region (solar power from other region) unless the sending region changes the SG=AG the same cannot be done by WR alone. Hence uniformity is not possible. MS, WRPC agreed to take up the matter in NPC / other RPCs for their stands. 6) Unless the Hon ble CERC decides on the RRF, ancillary services etc, the deviations for all renewable cannot be fully addressed. WRPC: During the WRPC meeting, MS WRPC informed the outcome of the TCC. The WRPC discussed the issue. GM WRLDC opined that In the absence of RRF mechanism by Hon ble CERC, existing IEGC provisions does not allow making SG=AG of a RE generator which is embedded in the State and selling power outside the state. Besides the present RE transactions are not only inter state but also inter regional in nature. Under such circumstances RLDC opined it will be difficult take any decision of making SG=AG only in WR for which no regulatory provisions exist. WRPC observed that since the implementing of SG=AG for solar transactions cannot be implemented by WR alone, there would be a need for uniformity with the other regions. Hence WR also cannot unilaterally follow for transactions within WR as uniformity would be lost( example For within region SG=AG and inter-regional there would be no SG=AG). MS WRPC suggested that he shall take with his counterparts in other regions and revert in the next meeting. WRPC agreed to MS,WRPC s suggestion. Minutes of 29 th meeting of WRPC held on at Aurangabad 17

25 ITEM No.5: SCHEDULING OF 10 MW ALLOCATION OF POWER TO BARC FACILITIES (TAPS 3 &4) FROM NPCIL TAPS 3&4. Background: WRLDC vide letter WRLDC/MO-II/1797/2015/310 dated & have informed that BARC facilities have disconnected from MSEDCL system. Since, BARC facility is no more a consumer of MSEDCL, therefore WRLDC vide above letters have requested to convene a meeting to resolve the issues involved in scheduling of power from TAPS-3&4 to BARC facilities. Accordingly a meeting to resolve issues involved in scheduling of 10MW allocation of power to BARC facilities (TAPS-3&4) from NPCIL TAPS 3 & 4, was held on at WRPC Mumbai. The issues discussed were as follows; 1. Allocation of 10MW was made from NPCIL TAPS 3 & 4 to BARC facilities (TAPS-3&4) vide letter. WRPC/Comml-I/3/Alloc/2014/7872 dated to be effective w.e.f. 00:00hrs of , as per MoP letter No.3/44/2014-OM dated Scheduling of BARC facilities commenced w.e.f. 00:00hrs of , treating BARC facilities as embedded entity of Maharashtra. 3. Disconnection of BARC facility from MSEDCL : As per NPCIL letter dtd , they had disconnected the supply from MSEDCL w.e.f However MSEDCL, representative informed that they would confirm whether BARC Facilities supply from MSEDCL has been permanently disconnected and they do not have any objection treating BARC facilities as regional entity. 4. Status of BARC scheduling : It was informed that since scheduling of BARC Facility is being done as an embedded entity of Maharashtra, the DSM and other liabilities are with Maharashtra and would continue with Maharashtra till it is treated as embedded entity. GM WRLDC informed that BARC is being treated as an embedded entity and invited suggestions, whether to continue treating BARC as embedded Minutes of 29 th meeting of WRPC held on at Aurangabad 18

26 entity or start treating BARC facilities as regional entity in light of above communication received from BARC facilities. 5. BARC facilities representative informed that they have not applied for open access with MSEDCL and MSETCL. SLDC MSETCL, Kalwa representative informed that for treating BARC facility as embedded entity of Maharashtra, BARC Facility has to take open access of MSETCL/MSEDCL system for wheeling power from TAPS-3&4 to BARC Facility through MSEDCL/MSETCL system. It was suggested that MSEDCL, Maharashtra STU and BARC Facilities would resolve the open access issue on priority. 6. If BARC facility desires to be treated as regional entity, BARC facility would have to approach CTU for multi party agreement between BARC Facility, CTU, TAPS 3&4 & TAPS 1&2 and to get MSEDCL/MSETCL NoC for the above connectivity, since one entity can not have dual connectivity with CTU and STU simultaneously. 7. Till the above at point 6 is resolved BARC Facility would be treated as embedded entity of Maharashtra. After completion of the above at point 7, BARC facility would inform WRLDC and complete all the formalities with WRLDC required for becoming a regional entity. Thereafter the scheduling of BARC facility as regional entity would commence at a convenient date. 8. In that case, BARC Facility would be treated as buyer and DSM would be applicable to BARC facility from the above date as per the methodology of scheduling adopted for buyers and beneficiaries of the nuclear stations. In line with the above discussions BARC Facility was requested to take appropriate action at the earliest and communicate the status. However BARC facility has not reverted on the above issue and BARC facility is being treated as an embedded entity of Maharashtra for scheduling and DSM accounting purpose. TCC: During the meeting, BARC representative informed the following status. BARC is making payment to NPCIL Taps 3&4 for the energy charges as against the Minutes of 29 th meeting of WRPC held on at Aurangabad 19

27 allocation. Further they are paying PGCIL transmission charges for the same. He informed that they have approached MSEDCL for NOC for getting connectivity with CTU. He also informed that MSEDCL meters have been disconnected since Further they have approached CTU for connectivity and the same is in process. He expected that these procedural formalities shall be completed shortly. GM, WR-2,PGCIL informed that BARC shall have to pay all necessary fees and complete the application in all respects for obtaining connectivity. CE, SLDC, MSETCL informed that since BARC have discontinued the meters since , the 10 MW allocation to BARC shown in Maharashtra as embedded entity may be removed. SE(Comml), WRPC clarified that the allocation of 10 MW as embedded entity in Maharashtra was done as BARC was consumer of MSEDCL because at that time BARC was not a CTU entity, but a MSEDCL consumer. The fact that they are no longer consumer since was not intimated to WRPC. Also if it is not possible for BARC to accept the allocation, WRPC Secretariat would have to take up the same with CEA/MoP. Hence reversing the allocation by WRPC is not possible post-facto. He further informed that the REA accounts show BARC separately for energy. However In DSM BARC is shown as embedded entity of Maharashtra. Hence BARC could pay for energy charges to NPCIL and transmission charges to PGCIL for the same. MS WRPC informed the following: 1) Till BARC gets connectivity to CTU as Buyer, for the allocation period, BARC is required to be treated as an embedded consumer of MSEDCL. MSEDCL was requested to regularise the case and BARC was requested to complete the necessary formalities for obtaining open access in Maharashtra system/ any other formalities required by MSEDCL since the date of allocation. 2) Since the discontinuation of meters at BARC end by MSEDCL from has taken place, the CTU meters reading for drawl point of Maharshtra at TAPS can be used for BARC consumption, as there is no MSEDCL meter since For this MSEDCL can obtain the meter readings from WRLDC. Minutes of 29 th meeting of WRPC held on at Aurangabad 20

28 3) BARC was requested to complete and regularise the case so that he is treated as embedded consumer of Maharashtra since the date of allocation. BARC agreed to the same. MSEDCL may accordingly regularise the case. 4) Once the embedded entity of MSEDCL status for BARC is completed and regularised, BARC may like to approach CTU, if they so desire, for connectivity with central grid. TCC recommended the above position stated by MS WRPC. WRPC: WRPC noted that for the period from the date of allocation till connectivity with CTU, BARC has to be treated as embedded entity of MSEDCL. WRPC agreed to TCC recommendation. ITEM No. 6 : FUNDING FROM PSDF Background: Member Secretary, WRPC informed that CERC vide notification No.L-1/148/2014/CERC dated have notified CERC (PSDF) Regulation As per these regulations the PSDF shall be maintained and operated through the Public Account of India. (1) PSDF shall be utilized for the following purposes: (a) Transmission systems of strategic importance based on operational feedback by Load Despatch Centres for relieving congestion in inter- State transmission system (ISTS) and intra -State Transmission Systems which are incidental to the ISTS. (b) Installation of shunt capacitors, series compensators and other reactive energy generators including reactive energy absorption and dynamic reactive support like static VaR compensator (SVC) and static synchronous compensator (STATCOM) for improvement voltage profile in the Grid. (c) Installation of special protection schemes, pilot and demonstrative projects, standard protection schemes and for setting right the discrepancies identified in the protection audits on regional basis. (d) Renovation and Modernization (R&M) of tran smission system for relieving congestion. Minutes of 29 th meeting of WRPC held on at Aurangabad 21

29 (e) Any other scheme/project in furtherance of the above objectives such as technical studies, capacity building, installation of Phasor Measurement Unit (PMU) etc. (2) PSDF shall also be utilized for the projects proposed by distribution utilities in the above areas which are incidental to inter-state transmission system and have a bearing on grid safety and security, provided that these projects are not covered under any other scheme of the Government of India, such as Restructured Accelerated Power Development & Reforms Programme (RAPDRP), Rajiv Gandhi Grameen Vidyutikaran Yojana (RGGVY) / National Electricity Fund (NEF) etc. (3) The private sector projects shall not be eligible for assistance from PSDF. (4) Prioritization shall be done mainly on the criteria of the schemes (i) addressing grid security concerns; (ii) being of national importance; (iii) being in the order of National / Multi Utility/Regional/State importance; (iv) being inter-state in nature. (5) The Procedure for Application, Screening, Appraisal, Monitoring, Sanction etc. of PSDF is mentioned in the regulations. Proposals of projects for funding through PSDF are being received by WRPC Secretariat from constituents for recommending these projects to the Appraisal Committee in Format A5. He informed that Initially a few proposals were received and recommended by the Secretariat to the Appraisal Committee are as follows; Sr.No. Name of project Organisation 1 ADMS SLDC GETCO 2 Load Forecasting SLDC GETCO 3 Fault current limiter SLDC GETCO 4 Implementation of integrated system for availability based tariff, open access & MIS for SLDC, MPPTCL, Jabalpur. SLDC MPPTCL Minutes of 29 th meeting of WRPC held on at Aurangabad 22

30 Since the above projects were of the nature of introduction to new technology and help in enhancing the grid security, they were recommended by the Secretariat to the Appraisal Committee in FormatA5. Some then more utilities have approached the WRPC Secretariat for recommendation of their projects to the Appraisal Committee and are given below Sr.No. Name of project Organisation 1 A Pilot Project on establishment of Interoperability among Process Bus compatible IEDs of Different OEMs GETCO 2 Wind generation forecasting project of Gujarat GETCO 3 Dynamic Reactive Power Compensation for improvement of voltage profile in the Grid 4 Compliance of protection audit observation and replacement/renovation/up gradation of protection system and switchyard equipments of EHV Substations under Chhattisgarh State Power Transmission Company Limited (CSPTCL) at various EHV Substations functioning under CSPTCL. MADHYA GUJARAT VIJ COMPANY LTD. CSPTCL TCC: MS WRPC informed that many more projects would be identified by various utilities for funding through PSDF and therefore it is proposed to form a Committee at the regional level to recommend the projects proposed by utilities. This Committee would go through the proposals and identify the projects which are in line with the PSDF regulations. Further the scope is with respect to recommend only those projects that require Form A5 certification and are of Regional nature only. He further suggested that for recommending these projects to the appraisal Committee a Group comprising of MS WRPC, GM WRLDC, ED/CE (STU) from the constituents, ED POWERGRID, ED NTPC may be formed. Here only Minutes of 29 th meeting of WRPC held on at Aurangabad 23

31 those projects which are of a regional nature requiring Form A5 will be recommended based on the merits of the proposal. This also does not prevent any state or utility from going directly to PSDF. CE, CSEB suggested that those proposals that have already come to WRPC may be recommended by WRPC Secretariat and this Committee may therefore look for new proposals. However MS WRPC informed that the special Group shall clear existing pending proposals quickly, after the WRPC meeting. WRPC: WRPC agreed the formation of a Group comprising of of MS WRPC, GM WRLDC, ED/CE (STU) from the constituents, ED POWERGRID, ED NTPC to scrutiny those proposals that are of regional nature requiring A5 form and recommend the same to PSDF based on the merits. For existing proposals that have already come to WRPC, a meeting may be called at the earliest after the WRPC meeting. WRPC agreed as above. ITEM NO. 7 REVISION OF DSM ACCOUNTS AND PAYMENT OF INTEREST THEREOF & STOA REVISIONS : Member Secretary WRPC informed that there are two issues to be discussed at A and B below. A) Revision of DSM Accounts and payment of interest thereof : MS WRPC informed that ACBIL vide their letter ACBIL/WRPC/14-15/1948 DATED have intimated that the DSM account for the week to was revised due to inadvertent error in calculating the injection of ACBIL and the DSM account for the week to was revised due to erroneous CT ratio for Bilaspur substation. For both the DSM accounts WRLDC raised invoices on ACBIL based on the original account and later raised revised invoices based on revised DSM accounts. ACBIL did not make the payments as per original invoice citing that the revised accounts/revised invoices were issued prior to due date of payment of the original account. Further WRLDC vide their memos dated and raised invoices for interest payment against nonpayment of Minutes of 29 th meeting of WRPC held on at Aurangabad 24

32 dues as per original accounts. The interest is not payable by ACBIL as the DSM accounts were corrected before the due date for payment and needs to be returned back. The matter was discussed in the 70 th CCM and WRLDC representative informed that the interest for outstanding amounts of pool members in the original account is calculated after the due date of the original account. Any subsequent revision of the original account will have a new due date, therefore till this new due date, the interest is calculated for the pool members who have out standing amount from the due date of the original account. If the accounts are revised within the due date of the original account, the sufferer pool member has to bear the interest on the out standing amount till the due date of the revised account. Therefore they unnecessarily have to pay the interest on the out standing amount and this adversely affects the cash flow of small pool members due to errors non attributable to them in the account. WRLDC was of the view that pool members should confirm their injection/drawl is correct and errors if any should be brought to their notice by Monday, since the meter data is uploaded on their web site by Friday, so that the errors can be rectified and revised data can be furnished by them to WRPC for preparing the accounts. Not withstanding the above the sub-committee suggested that if the accounts due to the above errors are revised within 5days of issuing the original account the original a/c be suspended or the interest liability of all the pool members be calculated as per the outstanding amount as per the revised a/c after the due date of the revised account. Since as per the regulations, the data for DSM account is to be furnished by WRLDC by Friday & WRPC based on this data has to issue the DSM A/c on Tuesday. Suspension of A/cs as suggested means delayed issuance of the A/cs as per regulations. Further the pool member would suffer in case of errors in a/cs which are beyond their control. Followings are recommended by CCM; Minutes of 29 th meeting of WRPC held on at Aurangabad 25

33 1) If the a/c is revised within the due date of the original a/c due to errors beyond the control of pool members, the amount payable by pool members shall be as per the revised a/c and the due date shall be as per the revised a/c. 2) If the a/c is revised after the due date of the original a/c due to errors beyond the control of pool members, a mechanism should be formulated such that the interest be receivable by the pool members who have paid excess amounts as per the original a/c than the amounts payable by such pool members as per the revised a/c. TCC: MS WRPC informed that in spite of best efforts there are mistakes in data processing, missing or erroneous data. This leads to mistakes in DSM accounts that have to be corrected. The corrections could be done within the due date or beyond the due date. When done within the due date, there is a need to extend the permitted payment time. This is because most governmental agencies require a processing time for making financial transaction. There are two bills for the same week period within due date payment and so old bill requires to be cancelled. In the present case pointed out by ACBIL, they had made payment as per revised bill. However since the old erroneous bill was not cancelled, WRLDC raised interest payments. He requested a discussion on the issue. GM, WRLDC informed that if a DSM bill is cancelled by WRPC, then only the treatment can be restricted to current valid bill. In the ACBIL case, had WRPC cancelled its old bill, the interest part for old bill would not be claimed from M/s ACBIL. M/s ACBIL pointed out that WRPC had issued two DSM bills for the same period within the due date of the first bill. They had honoured the latest bill for the same period which was recent and within due date and hence they are not liable to make interest payment for the old bill. TCC agreed to M/s ACBIL point of view and requested, WRPC to treat the old bill cancelled. TCC recommended that when a new bill for the same week is issued before due date of old bill, then the old bill should be treated as cancelled. Further the new bill shall have new due date as per regulatory norms. GM WRLDC pointed out that this may delay the payment realisation for inter-regional transactions. But since realizing interest from an old cancelled bill in the same week within due date is not a good practice, TCC recommended that when a revised bill for the same week is issued before due date, then the old bill should be treated as cancelled. Minutes of 29 th meeting of WRPC held on at Aurangabad 26

34 Regarding the second part, when a new bill for the same week is issued by WRPC after due date, the TCC discussed the issue. However it was not possible to suggest a solution/mechanism to the problem of interest given in the Agenda notes. In general since these errors are random in nature and no one is preferred, it is possible that some who suffers for a period may benefit at some other times. Hence existing practice may be continued. WRPC: MS, WRPC informed the above discussions to WRPC. WRPC agreed to the TCC recommendations that when a revised bill for the same week is issued before due date, then the old bill issued should be treated as cancelled. For the revised bill the new due date shall be as per regulatory norms (10 days presently). Accordingly the M/s ACBIL case may be processed. B) STOA revisions : MS WRPC informed that ACBIL vide their above letter have intimated that the plants of ACBIL have been granted connectivity through 400kV D/C dedicated transmission line from ACBIL generating station switchyard to 765/400 KV PGCIL substation Bilaspur. The LTOA/Connectivity for the plants is as under: 1. Grant of open access for 270 MW vide PGCIL letter dated Grant of open access for 50 MW vide PGCIL letter dated and Grant of open access for 2x30 MW vide PGCIL letter dated ACBIL is scheduling the gross power from all the units under common UI pool account and WRLDC works out the deviation w.r.t declared capacity of all units taken together. M/s ACBIL & SCPL applied to WRLDC for revision of STOA schedule for the 1x50 MW unit of SCPL from MW to 0 MW due to forced outage on vide application no N23280A. WRLDC POSOCO vide their mail dated replied that the STOA revision cannot be implemented because the plant capacity is 50 MW and in further communications WRLDC cited CERC provision of IEGC 2010 according to which, in case of forced outage only generator having capacity of more than 100 MW shall only be Minutes of 29 th meeting of WRPC held on at Aurangabad 27

35 allowed for revision in declared capacity/schedule through concerned SLDC/RLDC. Therefore ACBIL is requesting to permit revision of schedule in case of forced outage irrespective of size of generating unit as combined connectivity has been given at Bilaspur substation. In the 70 th CCM ACBIL representative informed that the entire ACBIL & SCPL complex is treated as a single pool member having installed capacity of more than 100MW and therefore the revision of STOA schedule should have been allowed due to forced outage. WRLDC representative re-iterated that the generator is having less than 100MW capacity therefore the STOA can not be revised as per the above stated IEGC provision. ACBIL did not accept the above clarification of WRLDC. Since ACBIL as a pool member & generator has a capacity greater than 100MW, whether the tripping of 50MW is eligible for STOA revisions or not requires guidance of TCC/WRPC. TCC: Ms WRPC informed the above issue and discussions in CCM. M/s ACBIL maintained that there is only one pool member of ACBIL as a generator with a capacity greater than 100 MW. Hence if there is tripping of their unit of 50 MW they have the right to revise their schedule because they are generator of more than 100 MW capacity.. WRLDC had maintained their view that schedule revision is applicable if only the generator unit is having a capacity of 100 MW or. They quoted the SOR and regulation and were of the opinion that STOA revisions are not permitted because the ACBIL generating unit is not having a capacity of 100 MW or more. SE(Comml),WRPC said that the sentence of the regulation is Quote ( IEGC First Amendment ) Notwithstanding anything contained in Regulation , in case of forced outage of a unit of a generating station (having generating capacity of 100 MW or more) and selling power under Short Term bilateral transaction (excluding collective transactions through power exchange), the generator or electricity trader or any other agency selling power from the unit of the generating station shall immediately intimate the outage of the unit along Minutes of 29 th meeting of WRPC held on at Aurangabad 28

36 with the requisition for revision of schedule and estimated time of restoration of the unit, to SLDC/RLDC, as the case may be. UnQuote He further opined that the sentence pertains to generating station capacity of 100 MW or more and not unit size. TCC members discussed the issue, however WRLDC maintained their view that it was unit size that was referred not the station capacity. Further WRLDC pointed out that if the interpretation is taken as per ACBIL stand, the STOA bilateral transactions by RE generators having capacity of 2MW onwards have to be revised by RLDCs and SLDCs in case of tripping of such units leading to a total jeopardy of the scheduling mechanism. WRPC: MS WRPC informed the above position. During WRPC meeting, WRLDC maintained their stand mentioned in TCC, pertaining to the interpretation of generating unit or station size. Since there was no convergence on the issue, it was left to M/s ACBIL to take the issue with the Hon ble Commission for any clarification. WRPC noted. ITEM NO 8: PROCUREMENT OF ERS SUBSTATION/SYSTEM OF 400/220/33KV Background : POWERGRID proposed for procurement of Emergency restoration System for Substation at 400/220/33kV level to meet the contingency arising out of natural calamities like earthquake, flood, cyclone etc. In the earlier WRPC meetings this scheme was agreed in principle and it was suggested to discuss this issue further in technical committee meeting and examine the proposal. Recently, cyclones of the scale of Phailin in Odhisha and Hudhud in Vizag caused enormous damage to Power transmission infrastructure in the respective regions which triggered revisiting the requirement of ERS Substation at 400/220/33kV level. The matter was discussed in TCC meeting of 28 th WRPC held on 3 rd March, 2015 where TCC members agreed to the suggestion of MS, WRPC that the earlier view taken by WRPC about three to four years ago on the ERS substation can be relooked under the present changed scenario. Minutes of 29 th meeting of WRPC held on at Aurangabad 29

37 During CCM meeting held on it was recommended that the proposal for ERS s/s be discussed first in OCC for technical details and tentative cost estimate. So that recommendations of OCC could be put up to ensuing TCC/WRPC ensuing meeting. In 472 nd OCC meeting held on at Ahmadabad representative from POWERGRID, WRTS 1, Nagpur made a presentation in brief about technocommercial details. Mobile substations are useful for meeting the contingencies imposed by natural disasters like cyclone and earthquake which cause extensive damage to the power supply network. Other than natural disasters there is application of mobile substation in cases of terrorist attacks on the power system assets and for temporary augmentation / reinforcement of existing power supply network like in case of organization of big national / international level events. Mobile substations are critical for ensuring reliability in power system network in case of contingencies beyond the control of power system operator / system owner. During the meeting CE, SLDC GETCO opined that above project may involve significant commercial involvement, therefore it would be better if is funded through PSDF fund and minimize the burden on beneficiaries. Also, participation of DISCOMs is essential before making any decision on procurement of the same. Member Secretary, WRPC suggested the by procurement of such type of mobile Sub-station the interruption of supply hrs may be reduced. He further informed POWERGRID to come up with more techno-economical details in upcoming TCC/WRPC meeting regarding finalizing the modalities involved in the procurement of mobile substations for Western Region. Present status of availability of ERS also about pooling/utilization strategies about existing ERS constituent wise is given below: One ERS is available with MSETCL, no ERS is available with Gujarat, one ERS available with MP, two 400 kv ERS available with Chattishgarh at Bhilai/Raipur, PGCIL have four set of ERS system viz 765kV at Seoni, 400 kv at Raipur, 400 Minutes of 29 th meeting of WRPC held on at Aurangabad 30

38 kv Dehgam, Itarsi and one available with Adani. at 400kV & one at 500kV level total two ERS TCC: PGCIL gave a presentation on the ERS Substation/System. Dir(O) MSETCL stated that huge investment is involved in this project and most of the time the assets would be lying idle. Hence there shall be no financial burden on the beneficiaries towards procurement of the ERS system. Representatives of MP, GUVNL and CSPDCL representatives stated that there is an issue of portability and mobility of such a huge asset, since lot of clearances are required to be taken for transportation of the system. The system may not reach the desired location at appropriate time, since the area of Western Region is huge and the benefits in real time would not be as has been envisaged. TCC therefore recommended that the ERS system be funded through PSDF. WRPC: MS WRPC informed the position to WRPC. Director(O),PGCIL informed that they are working on smaller sized ERS which are commercially viable and also capable of supplying essential power under emergency conditions. Also they should be easily mobile. If a viable commercial and practical proposal comes up, PGCIL shall bring the same to WRPC. WRPC noted. ITEM NO 9 : A. PROGRESS OF EMS / SCADA REPLACEMENT In the 16 th Project Review Meeting of SCDA/EMS held on 6 th July, 2015, WRLDC informed that GE SCADA LTSA would expire on and requested to complete Alstom SCADA commissioning and testing by The site readiness has been reviewed specially for the following location : a) Bhopal SLDC / Sub-LDC b) Indore sub LDC c) Goa (Madgaon) SLDC d) Bhilai back up SLDC Minutes of 29 th meeting of WRPC held on at Aurangabad 31

39 After detailed deliberation with PGCIL, It was agreed that extra efforts may be made to complete the above sites including communication requirement by In case of extreme emergency delay, alternate arrangement for temporary deployment of new SCADA will be made to facilitate migration to New system. TCC: The following position pertains to above issue was informed in TCC. Bhopal Sub-SLDC: Representatives from MPPTCL informed that Bhopal Sub- SLDC building would be ready by 31st Aug 2015 and suggested that temporarily alternate arrangements would be made at existing Sub-SLDC by installing minimum hardware and data would be made available at Jabalpur SLDC. After Bhopal Sub-SLDC building is ready hardware would be shifted for installation along with Sub-SLDC equipments. Indore Sub-SLDC: Representatives from MPPTCL informed that Indore Sub- SLDC is ready and installation is in progress. Bhilai Backup SLDC: Representative from CSPTCL informed that airconditioning and LT power supply work is in progress and Bhilai Backup SLDC building would be ready for installation by 31st Aug Goa : In case of Goa it was expected that Goa(Madgaon) SLDC would be ready by mid August WRPC noted. B. MASTER PLAN COMMUNICATION In the 16 th Project Review Meeting of SCDA/EMS held on 6 th July 2015, PGCIL requested for repeater station for Master Plan communication at following location: a) Pichore 132 kv for Bina-Gwalior link b) Bijawar 132 kv for Champa Kurukshetra line c) Sihora 132 kv for Champa Kurukshetra line Requirement of repeater at above location was discussed and considering the Grid operational requirement, the same was agreed. MP requested to provide Minutes of 29 th meeting of WRPC held on at Aurangabad 32

40 terminal equipment in place of repeater station whenever required. PGCIL informed that they will explore and include as per convenience. Representative from MP informed that the same may be taken up with MP STU and SLDC will extend necessary assistance. TCC: PGCIL proposal to install repeater stations at MPPTCL sub-stations was discussed. Representative from MPPTCL informed that repeater station can be installed at 132 KV Pichore for Bina-Gwalior link. Further he informed that at 132 KV Bijawar terminal equipment may be supplied in place of repeater station. Representative from MPPTCL also informed that outage of 132 KV Sihora is very difficult for laying OPGW and requested PGCIL to suggest an alternate location/ substation for installation of the repeater station proposed at Sihora. Also only one pair of fiber is available. It was recommended that PGCIL and MPPTCL would discuss the requirement of Sihora 132 kv for Champa-Kurukshetra link. WRPC noted ITEM NO. 10 : UNIFIED REAL TIME DYNAMIC STATE MEASUREMENT (URTDSM) 10.1 : REPORTING OF DATA TO STATE SLDCS The matter of non reporting of central sector PMUs data to SLDCs was taken up by SLDCs in URTDSM project review meetings held at WRLDC Mumbai on and in which it was principally agreed that PMUs data of all stations falling under geographical area of the State is required to be arranged in real time to the PDC of that SLDC. Further, representative of LD&C POWERGRID informed that technical feasibility for additional reporting/routing of data from Central sector PMUs need to be worked out considering the capability of hardware and software, especially historian sizing, storing capacity, duration etc. and assured that they shall revert back during the next meeting. Minutes of 29 th meeting of WRPC held on at Aurangabad 33

41 The above was emphasised in the 28 th WRPC meeting by the beneficiaries and SLDCs. The above requirement, along with necessary hardware and software required was in principle accepted by WRPC and PGCIL was requested to work out the details of hardware and software requirement and discuss the same in detail with WR constituents in the ensuing URTDSM meeting. GM PGCIL(HO) agreed to examine and implement the same. In the 4 th URTDSM meeting held on 6 th July 2015, as per the directives of WRPC in the 28 th WRPC meeting. PGCIL representative informed that they have worked out the hardware and associated requirement and confirmed that original configuration is adequate to meet the above data flow. TCC/WRPC noted. 10.2: URTDSM technical requirement: In the 4 th URTDSM meeting during the presentation on 7 th July 2015 by IIT-B, PGCIL to a query clarified that one terminal at WRPC would be made available and PMU data would also be available at this terminal for analysis by the protection group of WRPC. IIT-B gave a presentation on the analytics being developed under this project. The analytics envisaged in the project includes On line State Estimation, Estimation of line parameters, vulnerability analysis of relays for load encroachment and power swings, CT/PT calibrations and Zone-III adaptive protection. To a query of representatives present as to whether metering core or protection core is wired up for PMUs, IIT-B representative replied as per POWERGRID proposal metering core is being wired up for PMU. It was in general felt that the choice of instrumentation transformers cores should be based on the applications/analytics being developed for the project and for all protection purpose analytics it would always be advisable to use the protection core of the instrument transformers since under heavy power swings and faults persisting in Z-II/Z-III timings the metering cores would saturate and the analytics developed for protection purpose would not give desired results. Minutes of 29 th meeting of WRPC held on at Aurangabad 34

42 Therefore for specialized protection analytics PMUs of protection class are required to be wired up in PS class CT/PT cores. Since POWERGRID was responsible for providing input they assured to consider the above suggestion and would revert back. TCC: The matter pertaining to the use of protection core/ PS class PMU wherever protection analytics are to be deployed was discussed. PGCIL representative agreed to look into the matter and revert back. WRPC: Director(O), PGCIL queried whether protection core can be used as existing protection cannot be sacrificed. It was informed by some members that additional protection cores can be used. Director(O),PGCIL informed that this position may not be true for all stations, and they shall check up on the suggestion and revert back. WRPC noted. 10.3: URTDSM Manpower requirement In the 4 th URTDSM meeting held on 6 th July 2015, PGCIL has informed that scheduled Program Development System ( PDS) is to be delivered during August 1 st week. The Committee discussed the requirement of dedicated manpower for PMU technology development and deployment in SLDCs. GM, WRLDC informed that PMU technology has immense potential in Grid operation for improvement in system efficiency and reliability. So dedicated man power will ensure engagement of the Engineers from all control centres towards adoption of new technology and achieve desired benefits. After detailed deliberation the URTDSM Committee recommended for dedicated man power of 2-3 persons in each control centres to be provided respective utility (SLDC/RLDC). TCC/WRPC agreed to manpower requirement. However manpower planning has to be arranged by concerned utilities. Minutes of 29 th meeting of WRPC held on at Aurangabad 35

43 10.4: URTDSM space requirement In the 4 th URTDSM meeting held on 6 th July 2015, PGCIL informed the schedule for delivery of URTDSM project materials and requested constituents to arrange necessary space at all control centers for which constituents agreed. Constituents agreed to provide space as per requirement. TCC/WRPC noted. ITEM NO. 11: TESTING OF SPS ENVISAGED FOR OPERATION AND 765 KV AGRA-GWALIOR LINES 11.1 : SPS ENVISAGED FOR SR-NEW GRID OPERATION : SR-NEW GRID Back ground: As per NLDC s letter dated , the backing down quantum for generators in WR were finalized for various security threats after NEW SR synchronization with 765kV Raichur-Sholapur Ckt-I. The matter was further deliberated in the 26 th WRPC meeting held on and decided that as and when the signals are extended to the newer generators, the quantum of backing down of the already participating generators will be reduced on prorata basis. NLDC vide letter dated 07 th July 2014 communicated modification in SPS in view of commercial operation of 765kV Raichur-Solapur ckt-ii. The same was circulated to all the concerned for necessary action. Status: In the 123 rd PCM, PGCIL was requested to extend the signal to Lanco at the earliest and requested all newly participating generating stations to complete the wiring for necessary action at their end. It was also decided that mock testing of the modified SPS may be done by WRLDC after completion of signal extension and wiring at all generating stations. WRLDC representative intimated that mock testing of SPS for 765kV Raichur Solapur D/C was done in December 2014 and signal for generation backdown was received at all envisaged generating stations i.e. KSK, JPL, JPL Extension, NSPCL, BALCO, KWPCL and DB Power. TCC/ WRPC noted. 11.2: Tripping of 765 kv Raichur Solapur D/C on : On at around 19:13 Hrs 400 kv Chittor Tiruvalem I & II tripped. Subsequently at 19:19 Hrs, Minutes of 29 th meeting of WRPC held on at Aurangabad 36

44 HVDC Talcher Kolar pole I & II tripped on valve cooling problem and thus the power flow on each circuit of 765 kv Solapur Raichur D/C touched around 1573 MWs and these line tripped from Raichur end. It was followed by tripping of around 1750 MWs generation and 1000 MWs load shedding in SR. In the 125 th PCM, WRLDC representative intimated that during the above occurrence, power swings were observed as seen from the PMU data of Solapur and Raichur. He further informed that it is suspected that the lines have tripped from Raichur end due to crossing of 1000MW for 10 secs. However the tripping of the D/C should have been blocked when both ckts are in service. The tripping at WR end (i.e. Sholapur end) is blocked and it needs to investigate whether the tripping for above condition is blocked at Raichur end. This has been taken up with POWERGRID. Committee felt that during the above occurrence, the load shedding in SR envisaged for HVDC Thalcher-Kolar SPS might have acted correctly. However during the occurrence generators at Meenakshi(150MW), SDS TPS (800MW), Raichur TPS(210MW) and Ramagundam -Bhadrawati Pole 1 was out of service. This led to increase in loading on Raichur-Sholapur lines, but the load shedding in SR was not adequate (due to combined effects of HVDC Thalchar -Kolar tripping and Generation trippings in SR). Further it is suspected that SPS settings as per NLDC letter dated is not revised at Raichur end(i.e. blocking of tripping for O/L when both ckts are in service). This led to tripping of the lines from Raichur end.. Committee requested WRLDC to take up the matter with NLDC / SRLDC / ERLDC. Further, the loads to be shed identified for Thalchar-Kolar SPS & Raichur-Sholapur SPS should be independent of each other. TCC/ WRPC noted. 11.3: Tripping of 765 kv Raichur Solapur D/C on : In the 125 th PCM, WRLDC representative intimated that at 16:59 hrs, 765 KV Raichur-Solapur-II tripped on B-phase fault.at 17:00 hrs, 765 KV Raichur-Solapur-I tripped on Y-phase fault. A/R attempted for both circuit but due to persisting fault, the lines tripped. 765 KV Raichur-Solapur-I was charged from Raichur end at 17:42 hrs and synchronized at Solapur at 19:00 hrs. During synchronization, SPS operated and generation backing down took place at NSPCL ( 25 MW ), JPL ( 70 MW ), KSK (40 MW ). 765 KV Raichur-Solapur-II was restored at 19:25 hrs. At the time of synchronisation large power swings were Minutes of 29 th meeting of WRPC held on at Aurangabad 37

45 observed and the magnitude of Power swing was more than 3000 MW on this occasion, which caused SPS operation. The large power swings were observed due to improper synchronisation of the NEW & SR grids. As seen from the PMU data, the synchronization was done at an angular difference was around 115 degrees. The matter was discussed in PCM and it was felt that angular difference estimated/assessed during the synchronization by WRLDC may not be around 115 degrees, since synchronization at such an angular difference would have resulted power flows of the magnitude of phase to phase faults. However there was some problem during synchronization which needs to be brought out by studying the incidence in great depth by central agency like NLDC/CEA. Subsequently considering the seriousness of the above events, WRPC vide letter dated took up the issue with CEA. NLDC have published a report on the above events and a copy is available at WRPC web-site.. TCC: PGCIL representative intimated that tie breaker was used for Bus reactor and during commissioning of CSD in 2014, the synchro check OK input to BCU was missed out, therefore the synchronisation of the line through Tie breaker was not done by ascertaining the synchro check OK during synchronisation. WRPC: Director (O) PGCIL intimated that this was an unexpected charging situation from tie breaker, as it is usual to do the same from Main breaker. They have already directed to take all precautions to check the synchronisation for any tie breaker charging situation, between two asynchronous grids, to avoid errors in future. ITEM NO. 12: 12.1 SPS FOR AGRA-GWALIOR MOCK TESTING OF SPS ENVISAGED FOR BACKING DOWN OF GENERATION IN WR Background: An SPS has been implemented for 765kV Bina Gwalior Agra D/C, wherein when sudden reduction in import by NR on Agra-Gwalior I & II ckts by more than or equal to 1500 MWs, 500 MWs generation back down in WR (KSTPS NTPC 120 MWs, VSTPS NTPC 200 MWs & CGPL 180 MWs) and load shedding in NR would take place. The mock testing of SPS for 765 kv Bina Gwalior Agra D/C was proposed by NRPC on The mock testing of the SPS was unsuccessful and in the 124 th PCM, PGCIL Minutes of 29 th meeting of WRPC held on at Aurangabad 38

46 representative intimated that the signals were sent to generating stations directly from Agra S/s, under PGCIL - NR. The mock testing of the SPS was again carried out on and the receipt of signals at all the generating stations in WR was confirmed. In the meeting held on at CEA New Delhi for revision of SPS settings of 765kV Bina-Gwalior-Agra lines, it was decided that the SPS setting for triggering Load Shedding in NR be revised from existing 1250MW to 1400MW for each circuit (i.e. 2500MW to 2800MW for D/C). Increase in flow limit for SPS would allow import by NR upto 1400MW on each ckt. However ATC/TTC would not be changed. This settings would be observed for some time before revising upward and also in the light of ensuing commissioning of 765 kv Gwalior-Jaipur Circuit. WRPC noted. 12.2: Review of SPS for CGPL Mundra: In view of commissioning of 400 kv Bhachau Versana D/C the SPS was under review. Based on the studies carried out by WRLDC in consultation with SLDC GETCO, CGPL and WRPC the Revised SPS agreed is as follows; Sl. No. SPS triggering condition Actions required Comments i) If export is more than 3300MW and one ckt of CGPL-Bhachau D/C trips Backing down automatically to bring down the generation to 3100MW. 1.One line trips and export is between 3300 to 3500MW then runback of unit 40 only. ii) If export is more than 3300MW and if CGPL-Chorania or CGPL-Halvad or one ckt of CGPL-Jetpur D/C trips Backing down automatically to bring down the generation to 3300MW. 2.Two lines trip and export is between 3300 to 3500MW then trip unit 40. Minutes of 29 th meeting of WRPC held on at Aurangabad 39

47 iii) In case of D/C tripping of CGPL-Bachhau, CGPL-Chorania or CGPL-Jetpur Trip one unit immediately. Unit running at maximum generation to be selected for tripping to get full 800MW reduction immediately to take care of system stability. 3.One line trips and export is more than 3500MW then runback of unit 40 and other selected unit. Iv In case of D/C tripping of Bachhau- Ranchopura Backing down automatically to bring down the generation to 3300MW. 4.Two lines trip and export is more than 3500MW, then trip Unit 40 and runback in other selected unit. CGPL vide letter dated have intimated that the above logics have been implemented at CGPL Mundra since TCC/WRPC noted. 12.3: Islanding schemes for TAPS 1 & 2 and TAPS 3 & 4: In the 124 th & 125 th PCM meeting, it was proposed that TAPS 1 & 2 generation be islanded with Bhilad load and TAPS 3 & 4 be islanded with load of Boisar (MSETCL). In the 124 th PCM, Committee reviewed the proposal and opined that units of TAPS 1 & 2 are very old and fine control of generation is not possible. The governors of TAPS 1 & 2 are such that the generation can either be 160 or 100 MWs. Further the radial loads at Bhilad are variable and fine control of loads may not be possible. Therefore islanding TAPS 1 & 2 with Bhilad load may not survive for long and even if it survives, while restoring the grid it may be very difficult to synchronize this island with grid as both load and generation of the island are not controllable. Further it was felt that as the generation of TAPS 3 & 4 can be controlled, it would be better to form an island with generation of TAPS 1, 2, 3 & 4 and loads of Bhilad and Boisar. Committee requested TAPS 1 & 2 to take up the above proposal with higher authorities and revert back to the PCM forum with its proposal. TAPS 1 & 2 representative intimated that the above proposal was discussed in depth with higher authorities. It was felt that TAPS 1, 2, 3 & 4 together as island have multiple Minutes of 29 th meeting of WRPC held on at Aurangabad 40

48 combinations (All Units are running, TAPS 1 under shutdown etc..,), it would be very difficult to implement the logic for the same. Committee decided to drop the proposal for islanding of TAPS 1 & 2 and islanding scheme for TAPS 3&4 be formulated and requested WRLDC to prepare a draft scheme and put up the same in the next PCM. TCC: GM WRLDC informed that they have prepared the scheme after discussion with TAPS 1&2 and 3&4 authorities. All data for preparation of an islanding scheme exists. He requested NPCIL to formulate any suitable islanding scheme, in case they do not wish to implement the present scheme for Taps islanding and put up to PCM. Since necessary data was available with NPCIL from the above discussions it was decided that Taps1&2 and Taps3&4 may examine the schemes and revert to PCM forum. WRPC: MS WRPC informed the above position. WRPC requested NPCIL to look into the islanding schemes and suggest a suitable islanding scheme. Necessary regulatory clearances if any, may also be obtained. NPCIL agreed to revert back in PCM. WRPC noted. ITEM NO. 13 : DEVIATION SETTLEMENT MECHANISM AND RELATED MATTERS (FIRST AM ENDMENT) REGULATIONS, 2014 DATED 18 TH DECEMBER 2014 Background: In the 28 th WRPC meeting MD, MSETCL pointed out that the bigger states like Maharashtra, MP, Gujarat etc face a lot of practical difficulties in restricting the deviations as per the provisions of the DSM regulations and amendments thereto. However the representations with the Hon ble CERC have been made on individual basis (as only MP has approached the Commission). He further suggested that if difficulties are experienced in implementing the restrictions of deviations as per DSM regulations during operation by almost all the States of the region, then as a region it is necessary to represent the case and also point out acceptable solutions before the Commission or appropriate redressal forum. He pointed out the following Minutes of 29 th meeting of WRPC held on at Aurangabad 41

49 difficulties are being faced by Maharashtra and other States in restricting deviations within limits: 1) Impact of Renewable Energy: The renewable energy particularly wind faces a lot of uncertainties. The quantum of wind has gone up in Maharashtra. These variations are far above 150 MW limits prescribed. The RRF mechanism is suspended. In these conditions, the State is unnecessarily burdened with DSM penalties. 2) Failure of Communication links: In January 2015, there were instances when the major communication links failed. Under these conditions, the State was asked to back down generation. With frequency being low, the DSM penalties were very high, as it turned out from the energy meter readings that the State was not actually underdrawing as seen from the SCADA in absence of links, but was overdrawing. There should be provisions in the DSM to mitigate penalties in such cases where state is asked by WRLDC to backdown and links are not fully present. 3) Need for Redundancy in links: There is a need to increase the redundancy in communication links in a phased manner so that the above point does not repeat and cause financial implications. 4) Too small margins: Apart from the RRF factor, the margin for deviation of 150 MW for States with demands ranging from to 20000MW and central shares around 4000 MW is too small to be within limit and seriously requires to be enhanced. 5) Infirm power: New generating units under infirm power also cause deviations. WRPC in the 28 th meeting accepted the suggestions of MD MSETCL and recommended for formation a group comprising of representatives from all states and study the problems faced during the DSM regime and suggest the solutions in the next WRPC meeting. It is necessary to represent the case as a region and also point out acceptable solutions. It was decided that the Scope of the Group would be to study the operational challenges mentioned above and other related issues if any, which are commonly affecting the states in WR and suggest acceptable solutions and put up to the next WRPC meeting so that the matter may be put up to the Commission as a Region, if required. It was decided that the group shall be as follows: Minutes of 29 th meeting of WRPC held on at Aurangabad 42

50 1) All CE, State SLDCs 2) NTPC 3) All CE, Discom / Holding company if required 4) Any other member as required during discussions CE, SLDC MSETCL shall be convenor. A meeting was convened by CE SLDC Maharashtra at SLDC Kalwa on CE SLDC may give presentation on the outcome of the meeting. TCC: CE, SLDC gave a presentation on the Group s findings. The same is given at Annex 13. WRPC: MS WRPC informed the details of the presentation. It was earlier decided that a joint petition shall be filed by big states who are facing problems in DSM implementation, with Maharashtra taking a lead. Others had agreed to join the petition. MPPMCL had already filed the petition with the Hon ble CERC on the same issue. However other DISCOM in MP may join, barring of MPPMCL. It was agreed that Maharashtra Discom can file a joint petition with CERC. Financial charges shall be shared by the concerned utilities WRPC agreed. ITEM NO.14: HON BLE CERCS REGULATIONS: 14.1: THIRD AMENDMENT OF OPEN ACCESS REGULATION 2015 DT.12 TH MAY 2015 Hon ble CERC has notified 3 rd amendment of Open Access Regulation 2015 dt 12 th May Brief on the amendment is as follows. Amendment of Regulation 2 of principle regulation State Load Despatch Centre Operating Charges (SLDC operating charges) shall include the fees for scheduling, system operation, collection and disbursement of charges in respect of short term open access transactions for inter-state transmission of electricity. The operating charges collected by the State Load Despatch Centre for short term open access transactions shall be in addition to fees and charges, specified by the respective State Commission. The SLDC Minutes of 29 th meeting of WRPC held on at Aurangabad 43

51 operating charges as may be decided by the Commission in accordance with this regulation shall be applicable to the inter-state short term customers only if the operating charges have not been notified by the respective State Commission Amendment of Regulation 8 of Principle Regulation While making application to the RLDC/SLDC for obtaining concurrence for bilateral transactions (except for intra -day transaction/contingency transactions), an affidavit in the format prescribed in the Detailed Procedure, duly notarized, shall be submitted, along with the application, declaring that: (i) There is a valid contract with the concerned persons for the sale or purchase, as the case may be, of power under the proposed transaction for which concurrence is applied for, and; (ii) There is no other contract for sale or purchase, as the case may be, of the same power as mentioned in (i) above. While making application to the SLDC for obtaining no objection or prior standing clearance in case of collective transactions, the affidavit shall also include the declaration that there is no other contract for sale or purchase, as the case may be, of the same power for which no objection or prior standing clearance is applied for. Amendment of Regulation 17 of Principle Regulation Operating charges at the rate of `1000/-,per day or part of the day for each bilateral transaction for each of the Regional Load Despatch Centre involved and at the rate of `1000/- per day or part of the day for each State Load Despatch Centre involved shall be payable by the applicant. In case of collective transaction, operating charges shall be payable by the power exchange at the rate of `2000/- per day to the National Load Despatch Centre for each State involved and `1000/-per day for the State Load Despatch Centre involved for each point of transaction. 14.2: CERC (Sharing of Inter State Transmission Charges & Losses) -3rd Amendment Regulations, 2015, dt 1 st April 2015 Minutes of 29 th meeting of WRPC held on at Aurangabad 44

52 Hon ble CERC has notified 3 rd amendment regulations of Sharing of Interstate Transmission Charges & losses dated Brief on the Amendment is given below 1. Terms deleted from all sections of the Regulation: Peak and Off peak hours scenarios. Network Truncation Uniform Charging method 2. Application period ie period of application of these charges is now for 3months duration. (eg. Apr-Jun, July Sep, Oct-Dec, Jan-Mar.) 3. Approved injection (MW) -( for an Application Period) is now defined as the maximum injection made during the corresponding application period for the last 3yrs. 4. Approved withdrawal (MW)(for an Application Period) is now defined as the actual peak met during corresponding application period of last 3yrs. 5. DIC :(User of any segment of ISTS viz generator, STU/SEB, Load) Now it also includes any intra state entity who has obtained MTOA or LTA to ISTS and are connected to either STU or ISTS or both. 6. In addition to injection/withdrawal PoC, two more new charges have been introduced. (1) HVDC Charges and (2) Reliability Support Charge 7. Additional norms are defined for data submission to Implementing Agency (IA) Nodal generation data (forecast based) by the DICs (for an application period)forecast demand data by the DICs (for an application period)for a given application period the IA would compute the Approved Injection / Withdrawal based on last 3 yrs. actual fig. & same will be validated by the VC Difference b/w the fig. given by the DIC & those computed by IA have to be explained reasonably by the DIC Mis-declaration by a DIC ( beyond +/- 20% ) for 2 consecutive quarters Treated as Gaming & to be reported to CERC. 8. Network truncation is no more allowed and Hybrid methodology shall be applied by the IA on the Basic network to determine Transmission charges (Injection & Withdrawal PoC rate) and Loss allocation factor (LAF). Minutes of 29 th meeting of WRPC held on at Aurangabad 45

53 9. There shall be 9 slab rates for PoC rate (in Rs./MW/Month) as well as PoC Loss (in %). 10. Recovery of transmission (YTC) based on both Hybrid and Uniform charges stands amended. Recovery of YTC will now be done in 3 parts PoC Charges ( Calculated based on hybrid methodology) Reliability support charges ( RSC to recover 10% of YTC) HVDC charges 10% of YTC shall be through Reliability Support Charge sharing methodology. This charge shall be determined separately and shall not mixed with Zonal PoC rates. 11. Now onwards losses also shall be apportioned to each DIC through Hybrid methodology only. Earlier 50% was through Hybrid and 50% through uniform loss allocation mechanism Now there will be 9 slabs of Loss ( 4 steps above & 4 steps below the average loss %) Step size = 0.25 % ( Min Loss = 0%)Slabs to be reviewed by CERC after 2 years. Any ISGS connected to 400kV ISTS system ( including those connected to ISTS & STU) shall be treated as a separate Zone. 12. Merchant Power Plant: New definition introduced Whose tariff is neither determined as per sec-62 or sec-63 of the Act & who sells entire capacity in the open market. For Merchant power plants connected to ISTS with zero LTA or part LTA, injection considered in Base case or LTA which ever is higher shall be considered to arrive at PoC injection rate. 13. In case commissioning (CoD) of a generating unit is delayed, the generator shall be liable to pay withdrawal charges corresponding to the LTA granted & withdrawal charges shall average withdrawal PoC rate of the target region. 14. Before CoD & Commencement of LTA when a Generating station draws startup power or injects infirm power its liable to paywithdrawal PoC charge for drawal of start-up power (as per actual quantum of W/D) Injection PoC charge for infirm injection (as per actual quantum of injection. )(The amount collected through this shall be adjusted against YTC for next application period) WRPC noted. Minutes of 29 th meeting of WRPC held on at Aurangabad 46

54 14.3 Hon ble CERC has issued the following Regulations Hon ble CERC issued fifth amendment on Grant of Connectivity, Long term Access and MTOA in inter state transmission and related matters Regulation 2015, dt.15 th May Hon ble CERC issued Notification on Fees and Chrages of RLDCs and other related matters for the control period , dt. 18 th May 2015 WRPC noted. ITEM NO 15 : READINESS OF SLDC AT GOA, OTHER SLDCs AND WRLDC During 28 th WRPC meeting it was decided that the status of progress of SLDC s & Back-up SLDC s of WR constituents /WRLDC would be regularly monitored in monthly OCC meeting. Accordingly the OCC monitored every month & as per 472 nd OCC the present status of progress of SLDC s & Back-up SLDC s of WR constituents /WRLDC attached at Annexure 15. WRPC noted. ITEM NO 16 DECLARATION OF TRANSMISSION ELEMENTS INTO COMMERCIAL OPERATION BY ISTS LICENCEES. The list of transmission elements commissioned during the period to as conveyed by PGCIL is enclosed at Annexure 16. WRPC noted. ITEM NO 17. DECLARATION OF ISGS IN TO COMMERCIAL OPERATION WRLDC have informed the status of units under commercial operation in Western Region from Feb15-May15 as follows; SL NO STATION NAME UNIT NO/CAPACIT Y Date wef commenceme nt of Commissionin g activities Date of Syn. Of GT Date of CoD 1 SASAN 6-660MW NA Minutes of 29 th meeting of WRPC held on at Aurangabad 47

55 UMPP 2 JAYPEE NIGRI 2-600MW NA MB POWER 1-600MW MCCPL(ACBI 1-300MW 4 L) JHABUA 1-600MW 5 POWER LTD JPL STAGE MW NA WRPC noted. ITEM NO. 18: GRANT OF MTOA AND LTOA BY POWERGRID. The list of LTOAs/MTOAs received from NLDC and applicable from the month of June-15 for computation of RTA is enclosed at Annexure-18. WRPC noted. ITEM NO 19 STATUS OF LETTER OF CREDIT(LC) OPENING AGAINST DEVIATION CHARGES LIABILITY FOR WRLDC have intimated the details of LC to be opened by WR entities for the FY and the status is given below. Sl No. WR Entity who have to open LC No of weeks in which UI payable Average payable weekly UI (Rs in lakhs) LC Amount (Rs in lakhs) Remark 1 CSPDCL MP Power Management Co. Ltd Previous LC of Rs 164 lakhs is valid upto MSLDC UI Settlement account Goa OPENED LC ON D&D Previous LC of Rs 53 lakhs is valid upto Minutes of 29 th meeting of WRPC held on at Aurangabad 48

56 D&NH JPL LANCO ACBIL RGPPL Previous LC of Rs 66 lakhs is valid upto OPENED LC ON BALCO CGPL UMPP MUNDRA DCPP JSPL Essar Power MP Ltd KSK Previous LC of Rs 26 lakhs is valid upto Vandana Vidhyut ltd EMCO OPENED LC ON KORBA WEST POWER Corp. LTD DB POWER JAYPEE NIGRI Essar STEEL LTD GMR CHHATTISGARH Dhariwal Infrastructure Ltd RKM POWERGEN WRPC noted. Minutes of 29 th meeting of WRPC held on at Aurangabad 49

57 ITEM NO 20: 20.1 STATUS OF DEVIATION CHARGES Deviation charges Payable/Receivable by WR entities to WR Deviation pool account fund maintained by WRLDC as on 07 th July 15 is enclosed at Annexure-20. Major Default by Entities towards Deviation charges Payable 1. Essar Power MP Ltd- Rs crs 2. Vandana Vidyut Ltd- Rs 8.45 crs 3. ACBIL - Rs 4.07 crs 4. Jhabua Power- Rs 1.58 crs 5. KWPCL- Rs 1.91 crs WRPC noted STATUS OF REACTIVE ENERGY CHARGES Payable/Receivable by WR entities to Reactive pool account fund maintained by WRLDC as on 07 th July 15 is enclosed at Annexure-20A. WRPC noted :STATUS OF RECONCILIATION OF DEVIATION AND REC POOL ACCOUNT FOR THE PERIOD JAN 15 TO MAR 15. WRLDC vide letter dated , have intimated that WRLDC has sent the signed reconciliation statement for the period Jan 15 to Mar 15 to all Deviation/REC pool members as on 1 th Apr All the details of payments/receipts of Deviation charges and REC during Jan 15 to Mar 15 are also uploaded on WRLDC website ( Reconciliation). The following members are yet to send back the signed reconciled statement to WRLDC for the period mentioned above. Minutes of 29 th meeting of WRPC held on at Aurangabad 50

58 DSM Pool Members REC Pool members 1 GETCO LTD. 1 CSPDCL 2 MSLDC UI Settlement account 2 MP Power Management Co. Ltd. 3 Goa 3 GETCO LTD. 4 D&D 4 MSEDCL 5 JINDAL POWER LIMITED 5 Goa 6 HVDC Vin. 6 D&D 7 HVDC Bha. 8 Lanco Amarkantak Power Ltd 9 BALCO 10 CGPL UMPP MUNDRA 11 DCPP JSPL 12 Essar Power MP Ltd 13 SASAN Power limited 14 KSK Mahanadi 15 Vandana Vidyut Ltd 16 EMCO Energy ltd. 17 KORBA WEST POWER Corp. LTD 18 JAYPEE NIGRI TPP 19 DGEN (Torrent Energy Limited) 20 GMR Chhattisgarh Energy ltd 21 Dhariwal Infrastructure Ltd. WRLDC have requested all the above entities to reconcile at their end and send the signed statement to WRLDC at the earliest. WRPC noted. Minutes of 29 th meeting of WRPC held on at Aurangabad 51

59 20.4: INTEREST CALCULATION STATEMENT OF DEVIATION POOL ACCOUNT FOR THE PERIOD FROM 1 ST APR 2015 TO 30 TH JUN 2015 The summary of interest payable/receivable for Deviation pool account as on is as given below. Constituent Net interest payable/ receivable (in Rs.) CSPDCL 0 MP Power Management Co. Ltd. 16,497 GETCO LTD. -10,510 MSLDC UI Settlement account 66,577 Goa 1,41,043 D&D 3,48,407 D&NH 1,169 NTPC 1,308 JINDAL POWER LIMITED 4,327 HVDC Vin. 148 HVDC Bha. 0 Lanco Amarkantak Power Ltd 0 NSPCL 0 ACBIL 21,22,318 RGPPL 811 BALCO 4,29,266 CGPL UMPP MUNDRA 7,076 DCPP JSPL 0 Essar Power MP Ltd 3,06,43,541 SASAN Power Limited -21,649 KSK Mahanadi 8,02,292 Minutes of 29 th meeting of WRPC held on at Aurangabad 52

60 Vandana Vidyut Ltd 1,01,68,324 EMCO Energy ltd. 27,550 Korba West Power Co.Ltd 1,42,908 D. B.Power 2,250 Jaypee Nigrie TPP 9,68,726 Essar Steel India Ltd 6,67,023 DGEN (Torrent Energy Limited) 2,429 GMR Chhattisgarh Energy Ltd 7,42,409 Dhariwal Infrastructure Ltd. 60,129 RKM POWERGRN Pvt Ltd. 9,078 MB POWER LTD 5,419 JHABUA POWER LTD 33,282 Note: +ve indicates payable by the constituent and ve indicates receivable by the constituent WRPC noted. ITEM NO.21: PERFORMANCE OF WR GRID DURING FEBRUARY 2015 TO JUNE SYSTEM PERFORMANCE Frequency: During months of February 2015, March 2015, April 2015, May 2015 & June 2015 the grid operated in the IEGC frequency range of 49.9 Hz to Hz for %, %, 60.20%, % and % of time respectively. The frequencies below 49.9 Hz were from % to % of time during February 2015 to June In higher frequency regime, system frequency remained above Hz from % to % of time during February 2015 to June The monthly average frequency was Hz in February 2015, Hz in March 2015, Hz in April 2015, Hz in May 2015 & Hz in June Minutes of 29 th meeting of WRPC held on at Aurangabad 53

61 The detail of frequency profile for the months of during February 2015 to June 2015 is placed at Annexure-21.1(a). Demand : The maximum unrestricted demand of Western Region was in the range of MW to MW(Ex Bus) in during February 2015 to June The region faced capacity shortage in the range of 200 MW to 725 MW (peak deficit of 0.50 to 2.00 %) respectively during these months. The details of unrestricted peak demand, demand met and energy requirement and availability are as furnished at Annexure-21.1 (b) Voltage Profile Overall voltage profile had been satisfactory during the period under review. However, instances of high voltages beyond the IEGC specified operating range were observed at some of the EHV sub-stations in the region. Higher voltages in the range of 421 kv to 440 kv were noted at Indore, Itarsi, Karad, Dhule, Kasor, Bhilai, Jetpur, Bina, Gwalior, Nagda and Khandwa substations. To contain high voltages WRLDC resorted to opening of lightly loaded EHV lines on certain days. The detail of voltages at important 400 kv and 765 kv sub-stations during the period of during February 2015 to June 2015 is placed at Annexure In order to control incidences of high voltages during low load periods, installation of reactors at following locations as planned by various utilities is in the process as per following schedule: S. No. 400 kv Sub/stn. Size (MVAR) Implementing agency 1 Nanded 125 MVAR MSETCL June Sholapur 125 MVAR MSETCL June 2016 Expected commissioning date 3 Kolhapur 125 MVAR MSETCL June Akola 125 MVAR MSETCL June 2016 *5 Nagda 125 MVAR MPPTCL December 2015 Minutes of 29 th meeting of WRPC held on at Aurangabad 54

62 6 Bhopal 80 MVAR MPPTCL Commissioned on 27 th August ISP 125 MVAR NHDC December Line reactor at Nagda-ISP line at Nagda end 50MVAR MPPTCL March Satpura 50 MVAR MPPGCL April Sasan Bus reactor 13 Line reactor at Jabalpur pooling station 14 Bus reactor at Vindhyachal pooling station 240 MVAR RELIANCE Commissioned on 23 rd May x240 MVAr PGCIL Commissioned on 15 TH August MVAr PGCIL Commissioned on 22 nd August-2015 *50 MVAR existing bus reactor to be shifted to Nagda-ISP line as line reactor after commissioning of 125 MVAr reactor at Nagda. WRPC noted AUFLS Performance. The month-wise details relating to performance of AUFLS scheme in Western Region during the period during February 2015 to June 2015 in terms of quantum of load relief obtained and number of occasions the UFR operated is at Annexure WRPC noted. ITEM No. 22: ANTICIPATED POWER SUPPLY POSITION IN WESTERN REGION FOR THE PERIOD FROM JULY 2015 TO SEPTEMBER 2015 Minutes of 29 th meeting of WRPC held on at Aurangabad 55

63 The anticipated power supply position in the region for the period from July 2015 to September 2015 is at Annexure-22. The period under consideration is monsoon season. The anticipated regional demand is likely to vary between MW to MW and the capacity surplus will be around %. In terms of energy, the unrestricted requirement is expected to range from MUs to MUs with regional energy surplus of around 2.0 % to 5.5 %. WRPC noted. ITEM No. 23 STATUS OF COMPLETION OF 765/400 KV AND ABOVE ON GOING TRANSMISSION SCHEMES BEING EXECUTED/IMPLEMENTED BY TRANSMISSION AGENCIES. The updated status on various ongoing transmission schemes for the year as per the current information available is as follows : - S. No. Name of the Line POWERGRID Target Completion Date Remarks kv Navsari Kudus D/C Line Sept -15 ROW problem kv Gwalior - Jaipur line -I 765 kv Gwalior - Jaipur line -I I kv Dharamjaygarh - Jabalpur Pooling Station D/C line kv Wardha Nizamabad- Hyderabad D/C Sept-15 March kv Narendra-Kolhapur D/C Dec-15 Commissioned on Commissioned on kv Aurangabad - Boisar line D/C line kv Aurangabad (PG) - Padghe (PG) D/C Nov Sept kV Champa Kurukshetra Bipole Dec kv Aurangabad- Solapur D/C Oct Minutes of 29 th meeting of WRPC held on at Aurangabad 56

64 line 10 LILO of both circuits of Aurangabad Pune 400 kv D/c line at Pune 765/400 kv GIS Oct kv Parli-Pune(Sikarapur) LILO at Sikarapur Commissioned on kv Raipur Champa 765 kv Raigarh - Champa Commissioned on Commissioned on kv Indore-Vadodara Commissioned on kv Vadodara-Asoj Commissioned on kv Vadodara-Pirana Commissioned on kV Dharmjaigad-Rachi-II Sept KV Solapur(NTPC)-Solapur(PG) ckt-i kV V çhal Pooling Station-Satna- II Commissioned on Commissioned on 09 th August 2015 CHHATTISHGARH kv Korba west- Marwa 400 kv Marwa- Khedamara kv DCDS Raipur(Raita)- Jagdalpur(DCDS) kv DCDS lines Chhuri to Mopka (Bilaspur), (DCDS) 4 LILO of 220 kv Raigarh-Budipadar at 400 kv PGCIL S/s Raigarh 5 LILO of 220 Korba (E)- Bishrampur line at 220 kv Churri S/s GUJARAT Mar Nov 2015 Sep kv D/C Mundra-Zerda line No. 1 Dec Commissioned on Commissioned on 01/05/2015. Minutes of 29 th meeting of WRPC held on at Aurangabad 57

65 2 400 kv D/C Mundra-Zerda line No. 2 Dec kv D/C Vadinar-Amreli line Dec kV APL-Hadala LILO to Halvad Dec kv D/C Amreli-Kasor line(part-1) Dec kv Charanka- Veloda Dec MADHYA PRADESH 1 Satpura TPH-Ashta 400KV DCDS Line 1 st ckt commissioned on 30 th March nd ckt expected by July MAHARASHTRA(STU) 1 400KV D/C line from Koradi-(II) to Wardha S/S(PG) D/C 2 LILO of 400 kv Chandrapur-Parli at Nanded 3 2x1500 MVA 765/400 kv, ICTs at Ektuni kv Bableshwar-Kudus D/C (Quad) Dec 2015 Dec-15 Dec -15 August kv Akola(II)-Ektuni -2 (charge at 400kV at Tapthithanda) 6 400kV IEPL-Warora October 2015 Charge at 400kV at Tapthithanda on GUJARAT (IPTC route) by WR Transmission (Guj) Pvt. Ltd kv Rajgarh(PG)-Karamsad (GETCO) D/C Dec STERLITE (JTCL) kv Dhramjaygarh - Jabalpur (JTCL) D/C line Sept Severe ROW Problem kv Jabalpur - Bina (JTCL) S/c Charged on 30 th June Minutes of 29 th meeting of WRPC held on at Aurangabad 58

66 3 400 kv Sujalpur-Kota(IR by RTCL) Dec 2015 STERLITE (BDTCL) kv Vadodara - Dhule (BDTCL) S/C Charged on 12 th June kv Bhopal- Jabalpur Charged on 8 th June kV Bhopal - Jabalpur Charged on 8 th June WRPC noted. ITEM No.24 COMMISSIONING OF NEW GENERATING UNITS IN WESTERN REGION AND THE CAPACITY EXPECTED TO BE COMMISSIONED DURING THE CURRENT YEAR The status regarding Generating units, commissioned /expected to be commissioned during the current year according the available information is as below: Name of the Power Projects Unit No. Capacity (MW) Date of Commissioning /Schedule Date GUJARAT SIKKA TPS EXT Sep-15 SIKKA TPS EXT Dec-15 CHHATTISGARH Marwa Dec Dec 2015 MAHARASHTRA CHANDRAPUR Feb KORADI Nov KORADI March PARLI Jan MADHYA PRADESH Minutes of 29 th meeting of WRPC held on at Aurangabad 59

67 M/s Jhabua Power, Seoni December 2015 Moser Bear (Hindustan power) December 2015 Essar Power MP Ltd(Mahan) Oct CENTRAL SECTOR/IPP VINDYACHAL OCT KSK March 2016 KSK June 2016 SASAN COD on ACBIL(Maruti) RKM Commissioned on Synchronized on RKM October 2015 RKM Dec 2015 RKM MARCH 2016 BALCO COD on WRPC noted. ITEM.NO.25: WRPC MEMBERSHIP FOR RATTANINDIA POWER LIMITED MS WRPC informed that M/s RattanIndia Power Limited vide letter RPL/WRPC/15-16/006 dated 09 th April, 2015(copy enclosed at Annexure-25) have requested for inclusion of RattanIndia Power Limited as a member of WRPC. Government of India, under the provision of Section 2 (55) of the Electricity Act 2003 vide its resolution F. No.23/1/2004-R&R dated 25 th May 2005, amendment dated 29 th Nov.2005 and subsequent amendment dated 9 th May 2008 has established the WRPC. As per the resolution, a representative from every generating company which has established a generating station more than 1000MW in Western Region shall qualify to become member of WRPC. Minutes of 29 th meeting of WRPC held on at Aurangabad 60

68 The RattanIndia Power Ltd(RPL),, Maharashtra successfully commissioned the 5 units of generating capacity 270 MW each at Amaravati and one unit of capacity 270 MW at Nasik(total 1620MW) w.e.f Accordingly, RattanIndia Power Ltd(RPL). may be included as a member of WRPC representing the Generating companies with more than 1000 MW generation capacity from the year onwards. TCC/WRPC: MS WRPC informed that M/s RattanIndia Ltd qualifies for membership. Generally the practice followed in WR, is to get the approval from Chairperson, WRPC for new members who qualify for membership. The present Chairperson WRPC desired that the membership should be approved by WRPC after the qualifications of criteria is checked by the WRPC Secretariat. Hence MS WRPC brought the issue for the notice of WRPC. Since M/s RattanIndia Ltd qualifies to be a member, the membership was approved by WRPC for onwards. Item No SA-1: CONFIRMATION OF THE MINUTES OF THE 28 TH MEETING OF WRP COMMITTEE This is already covered in Item No 1. ITEM No.SA-2 : INSTALLATION OF POLYMER INSULATORS ON NEW TRANSMISSION LINES GM(Asset Management), PGCIL Gudgaon vide letter dated intimated that number of trippings of transmission lines in Western Region take place due to flashover across porcelain/antifog disc type insulators due to environmental pollution which is dynamically changing over a period of time. Considering high number of trippings due to flashover of insulator in Northern region, NRPC during its 30 th meeting held on 28 th Feb, 2014 approved that in future all new transmission lines in plain areas would be built with polymer insulators only and also existing anti-fog insulators would be replaced with polymer insulators in phased manner (Extract enclosed as Annexure-I) Minutes of 29 th meeting of WRPC held on at Aurangabad 61

69 In line with above, it is suggested that members may deliberate adoption of suitable policy for Western Region for installation of polymer insulators in existing as well as new lines. TCC : Beneficiaries were of the view that the above work may be taken up by PGCIL through their own funding or under O&M. PGCIL agreed to do it. However deemed availability for outage during the replacement may be given. MPPMCL informed that this part of the agenda had come late and requires his management approval. GETCO informed that as per their state regulation, this type of work is under renovation and moderation and the utility gets deemed availability. Position as per CERC regulation may be taken by WRPC. WRPC : Director (O) stressed that the above replacement would improve the reliability which would benefit the beneficiaries. He informed that in NR the replacement has resulted in no fog related tripping. Regarding the outages for planning, OCC shall co-ordinate the same. Regarding the deemed availability PGCIL requested to consider this for system improvement category. Also if availability increases beyond 99.75% due to the above being considered as deemed availability, they are willing to restrict the same to 99.75% MS WRPC informed that as per regulatory provisions the availability shall be given to the extent under system improvement, after confirming the practices followed in other regions. WRPC noted. ITEM No.SA-3 : ALLOCATION OF URS FROM CGPL UNITS: CE, SLDC Gujarat intimated that at present, all the Central and State generating stations are governed by the tariff regulations of the respective commissions. Their beneficiaries are allowed to change their schedule for the un-requisitioned quantum of power from one beneficiary (ies) to another beneficiary (ies) of the same power station on the requisition by any of these beneficiaries through the provision provided in the IEGC. In case the original Minutes of 29 th meeting of WRPC held on at Aurangabad 62

70 beneficiary requests back for its share of power, then its schedule and schedule of beneficiary who had availed URS power would be revised as per the provisions of IEGC. However, it is observed that the URS of NR constituents in CGPL is not being scheduled to Gujarat in line with the above procedure when there was acute shortage of power. The theme behind the reallocation of URS is to utilize resources in the best possible / in an optimum way. The issue of allocation of URS from CGPL in line with other Central Sector NTPC units was discussed in the 27th WRPC meeting held at Bhopal on The Chairperson WRPC informed that though the petition of URS with Sasan will take its time to be resolved by the Hon ble Commission, there are numerous instances where URS can be availed with these two existing and working UMPPs in the Western Region for which we must consider doing something in the interim period. The matter was again discussed in the 69th CCM held on ; however, GM, WRLDC stated that they don t agree for scheduling UMPP power under URS and stated that the beneficiaries have to avail STOA for the same. This is quite illogical considering the fact that for availing the URS power, why at all any beneficiary requests the same on STOA and pay undue transmission charges. The matter was again discussed in the 28th WRPC meeting. It was felt that due to the stand taken by WRLDC, it would be necessary to wait for the order in Sasan URS case. However, the order in the Sasan URS case is yet to come and pending since long. And due to want of the order in the said matter, it would not be appropriate to hold the scheduling of URS from CGPL as represented by all the procurers. TCC: Beneficiaries agreed for URS from CGPL and requested WRLDC to commence scheduling URS power. WRPC: MS WRPC informed that while WR beneficiaries are in agreement for URS from CGPL, however since CGPL has NR side beneficiaries, he shall Minutes of 29 th meeting of WRPC held on at Aurangabad 63

71 take up with the NR counterpart and upon considering their views URS of CGPL can be started. WRPC agreed. ITEM NO. SA-4 :SCHEMES APPROVED IN THE 38 TH SCM OF WR HELD ON AT NEW DELHI: POWERGRID vide dated have requested to include following two items approved in the 38 th SCM held on , pending release of MoM of 38 th SCM for timely implementation. SA-4.1 : LAYING OF CABLE IN DGEN-VADODARA 400 KV D/C LINE AT DGEN END : Regarding laying of cable in DGEN-Vadodara 400 kv D/C line at DGEN end, GETCO was of the view that the scheme cannot be awarded as due diligence was not done as per procedure to look for all options. GETCO has not given go ahead to CTU for implementation of 400 kv, 125 MVAR bus reactor at 765/400 kv Vadodara substation to compensate reactive power due to proposed laying of 3 km cable in DGEN- Vadodara 400 kv D/C line at DGEN end. CEA vide letter dated has furnished clarifications to GETCO giving details of the deliberations done among CEA, CTU, GIDC and Torrent Energy Limited to arrive at the decision for provision of cable in DGEN- Vadodara 400 kv D/C line. The matter was further discussed in the 38 th SCM and approved. As the same was now approved in SCM, the matter is now closed. TCC/WRPC noted. SA-4.2 : MODIFICATION IN TRANSFORMATION CAPACITY AT ITARSI S/S : In the 37th Standing Committee Meeting on Power System Planning of WR held on , MPPTCL proposal of an additional 1x315 MVA, 400/220kV transformer along with two nos. of 220 kv bays at Itarsi (PG) 400/220 kv S/s, to ensure the reliability of supply to 220 kv substations around Itarsi and Betul area was agreed. Minutes of 29 th meeting of WRPC held on at Aurangabad 64

72 POWER GRID vide their letter no. C/CTU/W/Itarsi dated has proposed that rating of additional (2nd ) ICT to be installed at Itrasi be revised to 500MVA instead of 315MVA, as the cost of 400/220kV ICT of 500MVA and 315MVA is generally of same order. The above was further discussed in the 38 th SCM and the proposal of 500MVA ICT instead of 315 MVA additional (2 nd ) ICT to be installed at Itrasi, was approved. TCC/WRPC noted. ITEM No. 26: ANY OTHER ITEM ITEM No. 27: DATE AND VENUE OF NEXT WRPC MEETING: MS WRPC informed that next WRPC meeting hosting is to be hosted by Jindal Power somewhere in November 2015 preferably at Bhubaneshwar. *********** Minutes of 29 th meeting of WRPC held on at Aurangabad 65

73 ANNEXURE

74 LIST OF PARTICIPANTS OF 29th TCC MEETING HELD ON AT AURANGABAD ANNEXURE-1A Sl.No. Name & Organisation Designation Mobile No. Members of TCC 1 Shri P.A.R. Bende, C.E., MPPTCL C.E. parbende@gmail.com Shri G.K. Sharma, Adl.C.E., MPPKVVCL Adl. C.E. se.operationwz@gmail.com Shri O.K. Yempal, Dir(Opn.), MSETCL Dir.(Opn.) dirop@mahatransco.in Shri W.R. Wankhede, C.E., CSPTCL C.E. waman5723@gmail.com Shri H.M. Patel, S.E.DNH S.E. hmpatel39@gmail.com Shri N.K. Jain, Asso.Dir., NPCIL A.D. nkjain@npcil.co.in Shri P. Mukhopadhyay, G.M., POSOCO G.M. prithwish.mukhopadhyay@posoco.in Shri Avinash Waghambare, V.P. R-Infra V.P. avinash.waghambare@relianceada.com Shri Ram Niwas,President, JPL President ramniwas@jindalpower ltd Shri S.D. Taksande, M.S., WRPC M.S. ms-wrpc@nic.in I WRPC 11 Shri Satyanarayan S. S. E. comml-wrpc@nic.in Shri L.K.S. Rathore A. S. as-wrpc@nic.in Shri P.D.Lone E. E. pramod.lone@gmail.com Shri D.N. Gawali E. E. comml-wrpc@nic.in II MSETCL/MSPGCL 15 Shri V.M. Khokale C.E. vasant_khokale@rediffmail.com Shri D.K. Rokade S.E. dkrokade@gmail.com Ms. Kavita K. Gharat S.E. selmkalwa@gmail.com Shri N.R. Sonkavday S.E. n.sonkavday@gmail.com III MPPGCL/MPPTCL 19 Shri K.K. Agrawal C. G. M. kka1957@gmail.com Shri M.P. Chincholkar C. G. M. makarand.chincholkar@mppmcl.com Shri A.P. Bhairve Dir(Comml.) dircommpgenco@gmail.com Shri D.C. Jain C.E. dcjain58@gmail.com Shri J. Singh A.C.E. jagdeep03@gmail.com IV CSPTCL 24 Shri Sanjay Patel E.D. cecnp.csptcl@cseb.gov.in Shri H.K. Pandey S.E. harish_pandey@rediffmail.com Shri H.K. Deota S.E. hemantdeota@yahoo.com V GETCO 27 Shri N.A. Patel C.F.M. cfmtrading.guvnl@gebmail.com Shri C.N. Raval S.E. secom.dgvcl@gmail.com Shri N.N. Shaikh E.E. nisar_ahmed352003@yahoo.co.uk Shri S.K. Nair D.E. decsp.guvnl@gebmail.com VI Elec.Dept.DD/DNH 31 Shri Jay Solanki J.E. ed-aesldd-dd@nic.in VII WRLDC / POWERGRID 32 Shri P.N. Dixit G.M. pndixit@powergridindia.com Shri D.P.Tamoli G.M. dptamoli@gmail.com Shri B. Anantha Sarma G.M. basarma@powergridindia.com Shri Kuleshwar Sahu A.G.M. kuleshwars@gmail.com Shri Ramchandra A.G.M. ramachand@powergridindia.com Shri P.R. Wankhede D.G.M. wankhede@powergridindia.com Smt. S. Usha C.M. usha_s_gopi@yahoo.co.in Shri Vivek Pandey C.M. vpandey76@gmail.com Shri G. Anil Kumar Sr. Eng. anilkumar@powergridindia.com Shri Ankur Gulati Sr. Eng. ankur.powergrid@gmail.com VIII NTPC 42 Shri Guryog Singh G.M. damani_in@yahoo.com Shri P.B. Behere G.M. pbbehere@ntpc.co.in Shri H. C. Harchandani A. G. M. hharchandani@ntpc.co.in Shri Sachin Jain D.G.M. sachinjain_61@rediffmail.com IX BARC 46 Shri Yadunath Kulkarni G.M. yaduk@barc.gov.in

75 47 Shri C.V. Raman So/F Shri Das Rao PD X Tata Power 49 Shri T.K. Bhaskaran Head PSCC tkbhaskaran@tatapower.com XI NCA 50 Shri M.A.K.P Singh Member makpsingh@yahoo.com XII APL 51 Shri Manoj Taunk A.G.M. manoj.taunk@adani.com XIII JPL 52 Shri Satish Jindal Dir & CEO satish.jindal@jsw.in Shri R.C.Gupta A.V.P. rcgupta@jindalpower.com XIV ACBIL 54 Shri H.M. Jain Sr.V.P. acbpower@acbindia.com XV NPCIL 55 Shri Sandeep Sarwate A.C.E. ssarwate@npcil.co.in

76 LIST OF PARTICIPANTS OF 29th WRPC MEETING HELD ON AT AURANGABAD ANNEXURE-1B Sl.No. Name & Organisation Designation Mobile No. Members of WRPC 1 Shri Vijay Singh, M.D., CSPTCL M.D. vijaysingh.cseb@gmail.com Shri P.A.R. Bende, C.E., MPPTCL C.E. parbende@gmail.com Shri S.S. Kulkarni, C.E., MSETCL C.E. cesldc@mahasldc.in Shri W.R. Wankhede, C.E., CSPTCL C.E. waman5723@gmail.com Shri P. Mukhopadhyay, G.M., POSOCO G.M. prithwish.mukhopadhyay@posoco.in Shri Preman Dinaraj, IA & AS, Dir.(F.), NPCIL Dir.(F.) premandinaraj@gmail.com Shri R.P. Sasmal, Dir(O), POWERGRID Dir(O) rpsasmal@powergridindia.com Shri Satish Jindal, Dir. & CEO, JSWEL Dir. & CEO satish.jindal@jsw.in Shri S.D. Taksande, M.S., WRPC M.S. ms-wrpc@nic.in I WRPC 10 Shri Satyanarayan S. S. E. comml-wrpc@nic.in Shri L.K.S. Rathore A. S. as-wrpc@nic.in Shri P.D.Lone E. E. pramod.lone@gmail.com Shri D.N. Gawali E. E. comml-wrpc@nic.in II MSETCL/MSPGCL 14 Shri Omprakash Yempal Dir.(Opn.) dirop@mahatransco.in Shri V.M. Khokale C.E. vasant_khokale@rediffmail.com Shri D.K. Rokade S.E. dkrokade@gmail.com Ms. Kavita K. Gharat S.E. selmkalwa@gmail.com Shri N.R. Sonkavday S.E. n.sonkavday@gmail.com III MPPGCL/MPPTCL 19 Shri K.K. Agrawal C. G. M. kka1957@gmail.com Shri M.P. Chincholkar C. G. M. makarand.chincholkar@mppmcl.com Shri A.P. Bhairve Dir(Comml.) dircommpgenco@gmail.com Shri D.C. Jain C.E. dcjain58@gmail.com Shri J. Singh A.C.E. jagdeep03@gmail.com Shri G.K. Sharma Adl. C.E. se.operationwz@gmail.com IV CSPTCL 25 Shri Sanjay Patel E.D. cecnp.csptcl@cseb.gov.in Shri H.K. Pandey S.E. harish_pandey123@rediffmail.com Shri H.K. Deota S.E. hemantdeota@yahoo.com Shri Satish Sharma E.E. satish1362@gmail.com V GETCO 29 Shri N.A. Patel C.F.M. cfmtrading.guvnl@gebmail.com Shri C.N. Raval S.E. secom.dgvcl@gmail.com Shri N.N. Shaikh E.E. nisarahmed3520@gmail.com Shri S.K. Nair D.E. decsp.guvnl@gebmail.com VI DD / DNH 33 Shri H.M. Patel S.E. hmpatel39@gmail.com Shri Jay Solanki J.E. ed-aesldc-dd@nic.in VII WRLDC / POWERGRID 35 Shri S.K. Gupta E.D. skgupta.59@gmail.com Shri P.N. Dixit G.M. pndixit@powergridindia.com Shri D.P.Tamoli G.M. dptamoli@gmail.com Shri B. Anantha Sarma G.M. basarma@powergridindia.com Ms. Manju Gupta A.G.M. manju@powergridindia.com Shri Kuleshwar Sahu A.G.M. kuleshwars@gmail.com Shri Ramchandra A.G.M. ramachand@powergridindia.com Shri Vivek Pandey C.M. vpandey76@gmail.com Smt. S. Usha C.M. usha_s_gopi@yahoo.com Shri G. Anil Kumar Sr. Eng. anilkumar@powergridindia.com Shri Ankur Gulati Sr. Eng. ankur.powergrid@gmail.com VIII NTPC 46 Shri G.J. Deshpande R.E.D. gjdeshpande@yahoo.co.in Shri D.K. Sood E.D

77 48 Shri Guryog Singh G.M Shri P.B. Behere G.M Shri H. C. Harchandani A. G. M Shri Sachin Jain D.G.M IX NPCIL 52 Shri Ravindranath E.D Shri A.K. Singh S.D Shri K.P. Singh C.E X BARC 55 Shri Yadunath Kulkarni G.M. yaduk@barc.gov.in Shri C.V. Raman So/F craman@barc.gov.in Shri D.A.S. Rao P D dasrao@barctara.gov.in XI Tata Power 58 Shri T.K. Bhaskaran Head PSCC bkbhaskaran@tatapower.com XII APL 59 Shri Manoj Taunk A.G.M. manoj.taunk@adani.com XIII NCA 60 Shri M.A.K.P Singh Member makpsingh@yahoo.com XIV JPL 61 Shri Ram Niwas President ramniwas@jindalpower.com Shri R.C.Gupta Asso.V.P. rcgupta@jindalpower.com XV ACBIL 63 Shri H.M. Jain Sr. V.P. (P.) acbpower@acbindia.com XVI REL INFRA 64 Shri Avinash Waghambare, V.P. R-Infra V.P. avinash.waghambare@relianceada.com

78 Annexure -3 Report on pump mode operation of Kadana Hydro units In 467 th OCC meeting of WRPC held on at WRPC, Mumbai, it was decided that SLDC-Gujarat would update latest status regarding capability of pump mode operation of hydro units of Kadana Hydro plant (4 x 60 MW). Also, the General Manager, WRLDC vide letter No. WRLDC/SO/137 dated informed that CEA report titled Large Scale Grid Integration of Renewable Energy Sources - Way Forward issued in Nov-13 says that 4 x 60 MW units of Kadana Hydro plant Stage - 1 & 2 in Gujarat are capable of operating in pumped storage mode. The report indicates that the facility is presently not working and it recommends as under: The vibration problem in Kadana PSP (240 MW) also needs to be resolved Presently, the installed capacity of wind generation is 3500 MW. Many times, it is observed that the wind generation during night hours remains on higher side and the system demand remains on lower side. In such conditions, there is a heavy under drawl during night hours which is penalized under recent Deviation Settlement regulation of Hon ble CERC. Also, the system faces high voltage issues many times. It leads to tripping of 400 KV lines connected to Wanakbori Thermal Power Station. The generation schedule from Kadana Hydro units is based on irrigation requirement. During peak hous in winter and summer season, the KHPS generation is limited to only one unit. In such conditions, the costly gas generation has been scheduled in open cycle for meeting peak demand. Looking to all these, the capability of pump mode operation will play vital role in power system operation. To know updated status and to explore feasibility of Kadana units in pump mode operation, Shri. D. B. Joshi, SE (OP), SLDC, Shri. B. M. Shah, DE, SLDC and Shri K. G. Patel, DE, Corporate Office, GSECL visited Kadana Hydro plant on The team verified past records of pump mode operation also. The chronological summaries of past records are as under: A meeting was held on with M/s. BHEL representative. In the meeting, it was decided that M/s. BHEL would send the team to ensure readiness of all the units for pump mode operation. If required, they would call experts from M/s. SKODA for overall Page 1 of 3

79 supervision. Also, M/s. BHEL would identify the spares requirement. They would check and ensure control, instrumentation and protection requirement. Thereafter, commissioning of the pump mode operation would be carried out. Accordingly, the joint inspection of all four units had been carried out in the month of Sept-03. They had listed out further works to be carried out before commissioning of pump mode operation. Various works / activities had been performed jointly by the team of M/s. BHEL, M/s. SKODA and GEB between and They had updated the status regarding commissioning and operational status of pump mode operation to GEB management on In their observation, it was mentioned that the trial of all four machines under pump mode operation was taken. Unit No. 3 & 4 tripped on turbine guide bearing temperature high. In the meeting, GEB requested M/s. BHEL to intimate the vibration limit for operation of pump mode. Also, it was noted that acceptance of commissioning of pump mode operation would be considered successful after seven Nos. of successful trials through auto sequence from control room. At least one trial should be more than 05 hours and rest for minimum 03 hours of continuous run. It was also mentioned that it is desirable to maintain TRC level between 78 meters to 81.5 meters. It was mentioned that there was a considerable heating of reactors and therefore, enclosure works need to be done. There was structural vibration observed in all units at the generator floor and to be got analyzed at appropriate level. Also, it was mentioned that the reliability and consistency of safe operation in pump mode was yet to be established and high level of vibration in pump mode operation was to be rectified for prolonged use in safe condition. On , the Officer on Special Duty at KHPS reported that they may run pump mode operation of any unit at any time without support of M/s. BHEL. As per the record of pump mode operation of all four units, the maximum vibration horizontal at turbine guide bearing for Unit No. 3 was on higher side. M/s. BHEL had recommended that maximum 50 micron vibration shall be allowed at bearing (Horizontal). On , the Engineer-In-Charge, KHPS informed that there are certain constraints / limitations in operating units on pump mode. Vibrations of the order of 12 to 15 microns are observed at power dam during pump mode operation of Unit No. 1 & 2. Page 2 of 3

80 Unit No. 3 tripped frequently on rotor earth fault. Also, 6 Nos. of slip rings insulated bolts were found puncture. When the machine was running in pump mode, initially, Amp eddy current in reactor was developed and it was to be controlled as per the guidelines of SKODA engineers. Since October , no unit of KHPS was operated on pump mode. Hence, it is utmost necessary to carry out inspection of units one by one in presence of OEM to put pump mode operation at KHPS in service. The recommendations of OEM regarding spares / modifications / rectifications shall be taken into account to reestablish pump mode operation. Also, study shall be carried out to access allowable vibration limit of Dam structure as well as vibration (horizontal) at turbine guide bearing of each unit. The matter shall be taken up with the irrigation authority to maintain down stream reservoir level situated at Dolatpur. The comprehensive proposal shall be placed in PSDF by GSECL Corporate Office. If requires. It was discussed during 468 th OCC meeting of WRPC held on that 2 x 125 MW units at Ghatghar Hydro power station in Maharashtra are capable of operating in pump mode and are being operated in pump mode. Therefore, it is suggested that a team of experts from GSECL shall visit Ghatghar HPS and have a detailed deliberation with the authorities there so that they can explore the feasibilities of sustainable operation of KHPS units on pump mode at the earliest. Page 3 of 3

81 Report on operational experience of DSM Mechanism and financial impact on state DISCOMs Report of committee set up as per directives of 28 th WRPC meeting to study and report findings on Operational Experience of DSM Mechanism and Financial impact on state DISCOMs July 2015 Page 1

82 Report on operational experience of DSM Mechanism and financial impact on state DISCOMs 1.0 Background Hon ble CERC had issued an order on regulation for Deviation Settlement Mechanism (DSM) 06 th Jan, The DSM mechanism is in place of Unscheduled Interchange (UI) Regulation. The DSM regulation is implemented w. e. f. 17 th Feb, Before implementation of DSM, Hon ble CERC had called comments and suggestions all constituents. Accordingly most of the stack holders has represented to Hon ble CERC regarding difficulties envisaged during actual implementation of mechanism due to volume cap of +/- 150 MW on deviation. Managing Director, GETCO has pointed out their views to Central Electricity Authority and Hon ble CERC on implementation of DSM on 12 th Feb, 2014 i.e. before actual implementation of mechanism. The views pointed out in above communication are representative views of all states in western Region. The letter is placed at Annexure A Further, Managing Director, GETCO has again pointed out their view and operational experiences of DSM Mechanism to The Chairman, CERC on 10 th Nov 2014, reiterating the same views on DSM mechanism. The letter is placed at Annexure B Madhya Pradesh Power Management Company Limited (MPPMCL) made a representation dated to the Commission regarding Regulation 7 of the Deviation Settlement Mechanism Regulations, particularly pertaining to the limits on deviation volume and the consequences of crossing the limits MPPMCL also filed a Writ Petition No of 2014 in the Hon'ble High Court of Madhya Pradesh, Jabalpur on challenging Regulation 7 of the Deviation Settlement Mechanism. Hon'ble High Court in its order dated issued the notice to the Commission and directed to decide the representation of the petitioner. 1.1 Abstract from discussions in WRPC meetings. Minutes of meeting of 27th TCC/WRPC held on 21st & 22nd November 2014 at Bhopal The DSM violates basic principle of one penalty for single violation. If an entity under draws at frequency Hz and above, it do not get a single paisa for the entire under drawl energy, however a penalty of Rs 1.78/kwh is levied on the entire volume. The Hon ble Commission may be requested to address this issue to avoid multiple penalties for single deviation. Constituents were of the view that the charges (capping & additional charges) have been substantially increased which is resulting in heavy penalization to DISCOMS. CE (SLDC) MP Page 2

83 Report on operational experience of DSM Mechanism and financial impact on state DISCOMs stated that the amount of capping and additional charges has increased many folds, since the inception of DSM as compared to the capping and additional charges in the UI regime. Other major concern raised by the beneficiaries was the limit of volume set to +/- 150 MW or 12% whichever is less, irrespective of the utility size. Beneficiaries were of view that the limit of volume should be w.r.t. the % of schedule and not in MW terms. A volume limit of 10-12% of schedule would be a fair limit. There are also penalties even if the state is helping the power system by under drawing at low frequencies. Chairman WRPC suggested that since all the constituents have more or less same grievances on the issue. 150 MW is too small a deviation and keeping it at 12% or 150 MW or higher (instead of lower) does not appear to have a major negative impact on the grid. He suggested that if other constituents are interested and having grievances they may like to consider joining the petition. Minutes of 28th meeting of WRPC held on at Udaipur MD, MSETCL suggested that a group comprising of representatives from all states be formed and study the problems faced during DSM and suggest the solutions in the next WRPC meeting. If there are difficulties experienced in DSM during operation for many states, then as a region it is necessary to represent the case and also point out acceptable solutions. TCC recommended the same. It was decided that the Scope of the Group would be to study the operational challenges mentioned above and other related issues if any, which are commonly affecting the states in WR and suggest acceptable solutions and put up to the next WRPC meeting so that the matter may be put up to the Commission as a Region, if required. 1.2 Petition filed by Tripura State Electricity Corporation before CERC Hon'ble CERC heard the petitioner petition filed by Tripura State Electricity Corporation Limited (TSECL) also heard from MPPMCL on identical grievances on implementation of DSM. Hon. CERC had issued an order dated on petition filed by TSECL and issued order giving relief to small states, however had not passed any relief to the grievances put forth by MPPMCL. From the order issued by Hon ble CERC, it is clear that no relief extended to big constituents. The relevant abstract of the order is as under. Provided further that when the schedule is less than or equal to 400 MW, the additional charges for deviation shall be based on percentage of deviation worked out with reference to schedule of 400 MW Page 3

84 Report on operational experience of DSM Mechanism and financial impact on state DISCOMs Form the order it is clear that relaxation on cap volume for large states is not considered by Hon ble CERC. Hence, issue of difficulties in effective implementation of DSM regulation is still remains unaddressed. Page 4

85 Report on operational experience of DSM Mechanism and financial impact on state DISCOMs 2.0 Formation of Committee MD, MSETCL during 28 th WRPC meeting, pointed the bigger states like Maharashtra, Madhya Pradesh, Gujarat etc. face a lot of practical difficulties in restricting the deviations within limit of +/- 150 MW under DSM. However the representations with the Hon ble CERC have been on individual basis (as only MP has approached the Commission). If there are difficulties experienced in DSM during operation for many states, then as a region it is necessary to represent the case and also point out acceptable solutions. He pointed out the following difficulties faced by Maharashtra in DSM: 1. Maharashtra system is having Maximum demand MW is met by around MW State generation and Central sector share of 6000 MW. 2. The deviation limit at the periphery as specified in the DSM regulation is 12% of share or +/-150 MW whichever is very meager as compared to the volume of power handled by state network. 3. For the larger states like Maharashtra, Gujrat, Madhya Pradesh, to maintain the deviation of +/-150 MW over a time block of 15 min. is practically difficult as demand is distributed in large geographical area. Also, unforeseen climatic factors and renewable generation in the state are affecting the demand pattern. All available resources are rescheduled continuously to remain in band. 4. Impact of Renewable Energy: The renewable energy particularly wind faces lot of uncertainties. The quantum of wind has gone up in Maharashtra. These variations are far above 150 MW limits prescribed. The RRF mechanism is suspended. In these conditions, the State is unnecessarily burdened with DSM penalties. There is a need for a group to be formed to discuss and suggest solutions. 5. Failure of Communication links: In January 2015, there were instances when the major communication links failed. Under these conditions, the State was asked to back down generation. With frequency being low, the DSM penalties were very high, as it turned out from the energy meter readings that the State was not actually under drawing as seen from the SCADA in absence of links, but was overdrawing. There should be provisions in the DSM to mitigate penalties in such cases where state is asked by WRLDC to back down and links are not fully present. 6. Need for Redundancy in links: There is a need to increase the redundancy in communication links in a phased manner so that the above point does not repeat and cause financial implications. 7. Too small margins: Apart from the RRF factor, the margin of 150 MW for states with demand like 20,000 MW in Maharashtra case, and central shares around MW is too small to curtail the deviations and seriously requires to be enhanced. 8. Infirm power: New generating units injecting infirm during testing, commissioning and during trial run also cause deviations as this power is not scheduled. Page 5

86 Report on operational experience of DSM Mechanism and financial impact on state DISCOMs MD, MSETCL suggested that a group comprising of representatives from all states be formed and study the problems faced during DSM and suggest the solutions in the next WRPC meeting. If there are difficulties experienced in DSM during operation for many states, then as a region it is necessary to represent the case and also point out acceptable solutions. TCC recommended the suggestion by Maharashtra and it was decided that the group of the Western Region constituents would study the operational challenges mentioned above and other related issues if any, which are commonly affecting the states in Western Region and to suggest acceptable solutions and put up to the next WRPC meeting so that the matter may be put up to the Commission as a Region, if required. WRPC agreed to the recommendation of TCC as above. During WRPC meeting, it was decided that the group shall comprise of following representation: ` 1) All Chief Engineers of State LDCs 2) Representative from NTPC 3) Officer of the rank of Chief Engineer, from DISCOMs / Holding company if required 4) Any other member as required during discussions The Chief Engineer, MSLDC shall be convener of committee and outcome of the discussions and deliberations shall be reported during next WRPC meeting. Accordingly, the Chief Engineer, MSLDC called representation from all constituents and a meeting of the group members was held on 22/04/2015 at MSLDC Kalwa. Based on the deliberations, suggestions and submission from members received during this meeting, this report is being submitted. Page 6

87 Report on operational experience of DSM Mechanism and financial impact on state DISCOMs 3.0 Committee proceedings Maharashtra has taken up the issue of DSM limit in various WRPC OCCM and WRPC meetings. The views of all WR constituents are similar and there is unanimous opinion to enhance the limit of +/- 150 MW on state deviation. It is also worthwhile to mention that system operator is continuously engaged in maintaining state drawl schedule and issuing re-dispatch instructions to all intra-state generators and revisions of ISGS schedules. The fact that system operator is continuously engaged in maintaining state drawl schedule leads to divert attention from prime duty of system operator from maintain loading parameters in intra-state network for assuring grid security and integral operation of network. The discipline of maintaining state drawl as per schedule cannot be ignored; however, the grid operations are commercially driven. This result in deterioration of thermal generating units due to ever changing dispatch schedule for pick up and back down instructions frequently. The system operator takes various actions to maintain load generation balance of control area to maintain state deviation within limit. Various corrective measures adopted during under drawl / over drawl are as under. Under Drawl condition 1. Withdrawal of load shedding, if already in force including supply to Agriculture Consumers. 2. Reduction of intra-state hydro generation to minimum level. 3. Operation of pumped hydro generating units in pumping mode. 4. Downward revision of inter-state ISGS schedule by as per combined merit order stack with intra-state generating units. 5. Backing down of intra-state generating units as per combined merit order stack to their technical minimum. 6. Reserve shut down of ISGS & InSGS units observing the trend of demand pattern. 7. Even if the under drawl is not under control and RE injection is on higher side, then curtailment of RE injection. It is observed that even after taking all above steps there are difficulties faced by system operator to control under drawl especially during demand crash scenario. Over Drawl condition 1 Upward revision of ISGS generating units as per combined merit order stack with intra-state generating units. 2 Pickup of all intra-state thermal generating units to their maximum declared capacity and revision schedules to that effect. 3 Increase intra-state hydro generation as per requirement. Hydro generation is picked up to maximum level during persistent over drawl condition. Page 7

88 Report on operational experience of DSM Mechanism and financial impact on state DISCOMs 4 Utilization pumped storage units in generation mode. 5 Implementation of planed load shedding all over the state as per protocol approved by SERC. 6 Instruction to carry out emergency load shedding by opening of 33/22/11 KV feeders as per protocol which is already in place and well circulated at sub stations in the field. Even if over drawl is not under control by taking above measures then there are identified 132 / 220 KV radial feeders which are opened on instruction of system operator. From all above measures system operator continuously takes efforts to maintain state drawl within limit of +/-150 MW. The demand variation in peak & off peak, in different seasons is of the order of MW which is almost 30-40% of peak demand in case of Maharashtra. It is worthwhile to mention here that Maharashtra is having variable hydro generating capacity about 2500 MW which includes Koyna, TPC Hydro and Ghatghar pump storage. Despite of this variable hydro capacity, sometimes it is inadequate to exercise precise control on state drawl. It is easy to appreciate that the constituents who do not have adequate controllable hydro at their disposal faces more difficulties in regulating their deviations. Maharashtra has carried out extensive analysis of deviations during the period 01 st April, 2014 to 31 st March, The data used for analysis is from ABT meter data used for Regional Energy Accounting weekly bills. The data pertaining to schedule & drawl for time blocks for the period 01 st April, 2014 to 31 st March, 2015 is analyzed. Following are few highlights of the analysis: 1. Under Drawl below 150 MW is for 60 % of time blocks and 1321 MUs. 2. Under Drawl within the range of 0 to 150 MW is for 6 % of time blocks and 131 MUs. 3. Over Drawl within the range of 0 to 150 MW is for 5 % of time blocks and 106 MUs. 4. Over Drawl within the range of 150 to 200 MW is for 3 % of time blocks and 69 MUs. 5. Over Drawl within the range of 200 to 250 MW is for 3 % of time blocks and 74 MUs. 6. Over Drawl above 250 MW is for 23 % of time blocks and 515 MUs. As per DSM regulation every constituent has to change sign of drawl after ever 12 time blocks and failure do so, accounts for IEGC violation. The analysis of the data shows that Maharashtra was able to change the sign of drawl after 12 time blocks 1541 times as against 2920 times in one year. This indicates that 53 % times sign change was possible in year Maharashtra also shared commercial impact on state during April 2014 to March 2015 as under: a. Unscheduled interchange charges of Rs Cr. is receivable. Page 8

89 Report on operational experience of DSM Mechanism and financial impact on state DISCOMs b. Amount payable due to cap on UI is Rs Cr. c. Additional UI Charges payable as part of penalty is Rs Cr. It can be seen that UI charges even being receivable as Rs Cr. had end up with Rs Cr. payable. State DISCOMs are facing heavy commercial loss due to capping and additional UI charges which applicable for deviation beyond +/- 150 MW. The failure of the constituent to abide by deviation limits of DSM regulation even after continuous efforts cannot be considered as failure of system operator, but it is has limitations due to ever changing demand pattern and also inadvertent variations of generating units in control area as well as outside control area. The views expressed by Gujrat are on the identical views on following points: 1) Impact of Renewable penetration in grid Gujrat and Maharashtra are having large quantity of renewable generation installed in state. Maharashtra has renewable installation of the order of 4400 MW with RE injection of the order of 2500 MW in monsoon season. These states are experiencing variation of injection of the order of 1000 to 1500 MW. System operator is totally constrained due to MUST RUN status of renewable and control of over drawl / under drawl within 150 MW limit is actually next to impossible in such operating scenario. 2) Merchant capacity private players play significant role in drawl schedule of the state, many times drawl schedule changes even by 500 MW in consecutive time blocks. 3) More than 200 Open Access users & quantum of transaction is more than 800 MW, their change in injection / drawl schedule directly affect the state drawl schedule at inter-state boundary. 4) New generators having capacity more than 250 MW are being added to the system and their infirm generation impacts of state drawl as these generators are not scheduled before COD. 5) The generating units of the capacity 500 / 660 / 800 MW are operating in the state and tripping such generating unit has direct impact on the drawl of the state. The views expressed by Madhya Pradesh are as below: 1) Tripping of State generator selling power through collective transactions, no revision is envisaged for collective transaction. Hence, tripping leads state under violation of Page 9

90 Report on operational experience of DSM Mechanism and financial impact on state DISCOMs DSM. Therefore, in such a case, no penalty to be imposed on State for violation of conditions under DSM. 2) As per IEGC clause No , in case of tripping of the State generator selling power through inter-state bilateral, only one revision is allowed. Original schedule would be made effective from the estimated time (as declared by the generator) of the restoration of the unit. In case, generator doesn t come on bar as per scheduled time then it leads State under violation of DSM. Generator to be allowed for more than one revision for such a case. 3) At present, RRF mechanism is only limited to scheduling and forecasting of RE generators. Commercial mechanism outline in RRF mechanism is suspended till further order. In absence of commercial settlement, it has lost its sanctity. New proposed CERC framework for scheduling forecasting and imbalance handling for RE generators to be made effective as early as possible. 4) Accordingly, State should be exempted for violation due to RE variation. 5) At present, grid consists of many 800 MW/660 MW/500 MW capacity generating units. Tripping of any unit leads immediate violation of DSM. Generator tripping is inevitable. Hence, for such a force major reason there should not be any penalty on state for DSM violation. For the States having higher demand the DSM limits +/- 150 becomes merely below 1%. No tools are available in INDIA having forecasting error within 1%. Hence, there should be reasonable deviation band to cover forecasting errors. CERC order No. L-7/139(159)/2008 dated in the matter of approval of amendments to the detailed procedure for relieving congestion in real time operation, Annexure-1 (Detailed procedure for relieving congestion in real time operation) clause No is reproduced as under Two percent (2%) of the total anticipated peak demand met in MW of the control area/group of control area/region (to account for forecasting uncertainties) Above clause clearly indicates/accepts the forecasting uncertainty as 2% and this level error in forecasting can be achieved only proper forecasting tool with sufficient historical demand data, meteorological parameters and sufficiently accurate weather forecast is available as input data to the forecasting tool. Presently, no state is equipped with such sophisticated forecasting tool. Hence, apparently considering the State Peak demand of big states of the order of to MW, forecasting error is much higher that DSM limit of +/-150 MW. Page 10

91 Report on operational experience of DSM Mechanism and financial impact on state DISCOMs The deviation limit specified under DSM mechanism is very low and it almost impracticable to maintain drawl within limit due to dynamics and ever changing demand pattern on demand side. Frequent variation of intra-state resources as detailed above on other side, system operator is facing much difficulties in maintaining state deviation within band of +/- 150 MW due to inherent system dynamics. From all above facts/submission by all western region constituents it is crystal clear that the deviation limit prescribed by DSM regulation is not practically achievable. Also, the question remains that why this fact was not brought out in early stages of DSM implementation. The reason behind that all constituents had already submitted their comments/suggestions in response to the concept paper published by CERC, however cognizance of the same had not been taken at the time of issue of DSM regulation. This is to mention here that Statement of Reasons (SoR) was not published at the time of notification of regulation. Further, all constituents have honored this regulation and put maximum and sincere efforts to abide by the provisions of the regulation. However, it is the fact that even after taking sincere efforts it not possible to abide by deviation limits. The issues faced by constituents were discussed at regional forum and finally arrived at the conclusion that issue needs to be referred jointly to Hon ble CERC. Other related issue of monitoring of Drawl of constituents by RLDC. RLDC monitors drawl of all constituents against their respective schedules and issue notices on the basis of drawl figure available on RLDC - SCADA system. Actual drawl of constituents is arithmetic summation SCADA data of different drawl points. Computation of actual drawl is summation of more than 60 to 70 nos. of instantaneous MW values from various locations. This data comprises of data from ISGS - RTUs and also from data from STU RTUs. Most of the time correct data of all interface points are not available and many values are non-current / invalid due to various reasons including communication failure. System operation is carried out on SCADA data and billing is carried out on the basis of ABT meter data. It is observation of all constituents that drawl data do not match with each other and there is wide variation in these data sets. The SCADA error is mis-leading to system operator for taking decisions on control action in maintaining deviation within limit of 150 MW and resulting in wastage of resources followed by huge financial impact in actual billing being post facto activity based on meter data. Page 11

92 Report on operational experience of DSM Mechanism and financial impact on state DISCOMs In the order, in petition filed with CERC by Tripura in case No. RP/06/2014 clause no 18(n) it is mentioned that As per SCADA data MP had to receive about `9.00 Crore but as per actual UI accounts, MP was payable by 5.31 Crore All constituents are facing problem of monitoring actual drawl data computed on the basis SCADA inputs from all interface points. RLDCs are in process for acquisition of ABT meter data from all inter-state/ inter-region interface points under Automatic Meter Reading (AMR) scheme. ABT meters are compatible for transmission of instantaneous MW data at fixed interval. Acquisition of instantaneous MW data from interface meters and computing drawl of constituents will give correct drawl figures in addition to SCADA data. This data also can be made available to constituents for reference. Page 12

93 Report on operational experience of DSM Mechanism and financial impact on state DISCOMs Proposal for consideration After detail deliberations and from the submission of all Western Region constituents, the committee proposes DSM limits as below: Part A : Proposed Deviation Limits 1. Schedule below 400 MW : 48 MW. ( Already approved by Hon ble CERC) 2. Schedule between 401 to1250 MW : 12 % or 150 MW whichever is lower. 3. Schedule between 1251 to 1500 MW : 150 MW. 4. Schedule above 1501 MW : 10 % or 400 MW whichever is lower % penal charges for deviation between 401 to 500 MW % penal charges for deviation between 501 to 600 MW % penal charges for deviation above 600 MW. 8. Under drawl cap for under drawl exceeding 400 MW 9. Penal charges for under drawl above frequency Hz for under drawl exceeding 400 MW. 10. The provision of change in drawl sign in 12 time blocks may be continued. Part B : Data acquisition from interface ABT meters. Respective RLDCs may please be directed to acquire instantaneous MW data from interface ABT meters and computed drawl data of respective constituent on the basis of this data and shall be made available in real time. Way forward In compliance to the directives issued during 28 th WRPC meeting, this report is being submitted to WRPC. WRPC may like to discuss and consider to share this report to all constituents / DISCOMs. All DISCOMs shall file a joint petition to Hon ble CERC and SLDCs shall extend all possible help to DISCOMs. This report shall also be shared with other states in country and similar action is envisaged from other states in country. Page 13

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111 ANNEXURE 16 Assets commissioned during Sl. No. Asset Project DOCO 1 400kV D/C Bachau (PG) - Versana (GETCO) along with associated bays. WRSS-XIII kV, 125MVAr Bus Reactor alongwith associated bay at Parli Substation kV, 1*80 MVAR Bus Reactor along with associated bays at 400/220kV GIS Magarwada (new) SS. Installation of Reactors(Part-II) in Western Region GIS Magarwada KV, 1*80 MVAR (3 Ph) Line reactor as Bus Reactor along with associated bay at 400 KV Boisar Substation (For 400 KV D/C (Quad) Aurangabad-Boisar ckt-i line as contingency arrangement) TRANSMISSION SYSTEM STRENGTHENING IN WESTERN PART OF WR FOR IPP GENERATION PROJECTS IN CHATTISGARH *80MVAR Line reactor alongwith line bay ( under interim contingency) as Bus Reactor at Satna SS (for 765kV S/C Vindhyachal pooling station -Satna Ckt-2 Transmission line). Rihand-III and Vindhyachal-IV kv Navsari Magarwada Ckt. 2 - Part * 400 kv Magarwada Kala Ckt. 2 ** 400 kv Vapi - Kala Ckt. 2 - Part*** *400 kv Navsari Magarwada Ckt. 2 (Total length commissioned : Kms) a) Part of One Circuit of M/C portion of 400 kv D/C Vapi-Kudus (WRSS#V) from AP 18/0 AP 23B/0 (4.20 Kms.) b) Part of 400 kv D/C LILO (M/C) portion (MAGARWADA Project) from AP 23B/0 to Magarwada GIS Gantry ( Kms.) along with Navsari 2 bay at MAGARWADA GIS SS. **400 kv Magarwada Kala Ckt. 2 (Total length commissioned : Kms) 6 a) Part of 400 kv D/C LILO (M/C) portion (MAGARWADA Project) from AP 23B/0 to Magarwada GIS Gantry ( Kms.) along with Kala Ckt. 2 bay at MAGARWADA GIS SS. b) Part of One Circuit of M/C portion of 400kV D/C Vapi-Kudus (WRSS#V) from AP 23B/0 AP 38/0 (14.96 Kms.) c) Part of 400 kv D/C portion of Navsari Boisar (Mundra project) from AP 38/0 to AP 43B/0 ( kms) d) Part of one circuit of M/C portion of 400 kv D/C Navsari Boisar (Mundra project) from AP 43B/0 to AP 45A/0 (2.28 Kms) e) Part of 400 kv D/C LILO (M/C) portion (KALA Project) from AP 45A/0 to Kala GIS Gantry (9.014 Kms.) along with Magarwada Ckt.2 bay at KALA GIS SS WRSS V, MUNDRA, ESTABLISHMENT OF 400/220 kv GIS S/S AT KALA IN UT DNH & ESTABLISHMENT OF 400/220 kv GIS S/S AT MAGARWADA IN UT DD ***400 kv Vapi Kala Ckt.2 (Total length commissioned: Kms): a) Part of One Circuit of M/C portion of 400 kv D/C Vapi-Kudus (WRSS#V) from AP 18/0 AP 38/0 (19.16 Kms.) b) Part of 400 kv D/C portion of Vapi Kudus (WRSS#V) from AP 38/0 to AP 43B/0 ( kms) c) Part of one circuit of M/C portion of 400 kv D/C Navsari - Boisar (Mundra Project) from AP 43B/0 to AP 45A/0 (2.28 Kms) d) Part of 400kV D/C LILO (M/C) portion (KALA Project) from AP 45A/0 to Kala GIS Gantry (9.014 Kms.) along with Vapi Ckt.2 bay at KALA GIS 7 Installation of 1x315MVA, 400/220kV ICT-III at Bhadrawati HVDC Back-to-Back station 8 2 Nos 220 KV line bays at 400/220 KV Pirana Substation (for 220 KV Barajadi ckt#1 & 2 Transmission line of GETCO). Installation of Transformer &Procurement of Spare Converter Transformer for B'wati HVDC BTB Station AUGMENTATION OF TRANSFORMER AND BAYS IN WESTERN REGION KV, 3*80 MVAR Bus Reactor at Bina Substation with associated bays TRANSMISSION SYSTEM FOR PHASE-I GENERATION PROJECTS IN ORISSA (PART-C) /400 kv Vindhyachal pooling station (New) including 3 x 500 MVA ICT # kv S/C Vindhyachal pooling station - Satna ckt#1 Transmission line and associated bays at Vindhyachal pooling station along with 3 x 80 MVAr switchable line reactor. (Line Reactor at Satna substation already commissioned as Bus reactor w.e.f 13/11/2014 under interim contingency, is now restored as line reactor) kv S/C Sasan Vindhyachal pooling station Transmission line along with associated bays at Vindhyachal pooling station and at Sasan Reliance. 4. Associated line bays at Vindhyachal pooling station for one ckt. of 400 kv D/C Sasan - Vindhyachal pooling station Transmission line (TL portion commissioned earlier w.e.f. 01/01/2013 under interim contingency). Rihand-III and Vindhyachal-IV KV, 240 MVAR Bus Reactor-I at 765 KV Jabalpur Pooling Substation with associated bays TRANSMISSION SYSTEM FOR PHASE-I GENERATION PROJECTS IN ORISSA (PART-B) Wardha -Aurangabad 765kV Second D/c Line alongwith 2 nos.3x110mvar Switchable Line Reactor at Wardha end & 1 nos. 3x80MVAr Line Reactors at System-Strengthening in Wardha-Aurangabad Aurangabad end & associated bays. Corridor for IPP Generation Projects in 13 1 No.3X80MVAr 765kV Wardha-Aurangabad Line Reactor of Circuit 4 at Chhattisgarh (IPP-G) Aurangabad end Solapur-Pune(GIS) 765kV S/C Line along with associated bays & 240MVAr Switchable Line Reactor at Pune(GIS)(New) LILO of Parli -Pune 400kV D/c Line alongwith associated bays & 2X50MVAr 14 Line reactors at Pune(GIS)(new) New 765/400kV GIS Sub-station (New) at Pune 765/400kV, 1500MVA ICT-I at Pune (GIS) (New) 765/400kV, 1500MVA ICT-II at Pune (GIS) (New) 765kV, 240MVAr Bus Reactor at Pune(GIS) (New ) Krishnapatnam UMPP - Part-B

112 LTA Status for the month June, 2015 ANNEXURE-18/1 S. No. Name of LTA Customer (Injecting utility) Generator/Load/ Region Trader Quantum of LTA granted LTA with Name of the tied up beneficiaries beneficiaries Quantum for target Regions (MW) - for LTA with untied beneficiaries NR ER WR NER SR TOTAL Whether applicable during the month Remarks 1 ACB Limited Generator WR Gujarat Yes 2 Adani Power Limited Generator WR NA Yes 3 Adani Power Limited Generator WR APL (Haryana). POC charges payable by APL, see remarks Yes Based on CERC order dated 29/07/2013, for APL Mundra TPS stage #3 to Haryana LTA, the APL would pay for the LTA of 1495 MW at both Mundra TPS stage#3 injection POC rate as well as Haryana with drawl POC rates. 4 Adani Power Limited Generator WR NA Yes 5 ADHPL Generator NR NA Yes 6 BRPL (DVC Power) Load NR BRPL Yes 7 BRPL (DVC Power) Load ER BRPL Yes 8 BYPL (DVC Mejia U#7) Load NR BYPL Yes 9 BYPL (DVC Mejia U#8) Load NR BYPL Yes Since BYPL is not making payment of transmission charges, DVC is to be billed for this quantum w.e.f DVC was informed by POWERGRID vide letter dtd BYPL (DVC Power) Load NR BYPL Yes 11 BYPL (DVC Power) Load ER BYPL Yes 12 DD (NSPCL) Load WR DD Yes 13 DNH (NSPCL) Load WR DNH Yes 14 DVC (DVC Durgapur U#2) Generator ER PSPCL Yes 15 DVC (DVC Koderma U#1) Generator ER Haryana Yes 16 DVC (DVC Mejia U#7) Load ER DVC Yes 17 DVC (DVC Mejia U#8) Load ER DVC Yes 18 DVC (MPL U#1) Load ER DVC Yes 19 DVC (MPL U#2) Load ER DVC Yes 20 EMCO Energy Limited Generator WR EMCO(MSEDCL) & EMCO (DNH) PoC Charges payable by EMCO, See Remarks Yes 1. LTA commencement w.e.f as per CERC Order dtd in Pet. 127/MP/2013. (2) LTA of 200MW was tied up with MSEDCL by EMCO w.e.f , however the transmission charges for this 200MW shall be payable by EMCO. (3) LTA of 200 MW was tied up with DNH by EMCO, commenced w.e.f as per WRLDC letter, however the transmission charges for this 200MW shall be payable by EMCO 21 Haryana (DVC Mejia U#7) Load NR Haryana Yes 22 Haryana (DVC Mejia U#8) Load NR Haryana Yes 23 Haryana (PPCL) Load NR Haryana Yes 24 Himachal Sorang Generator NR NA Yes 25 HPSEB(BASPA) Load NR HPSEB Yes 26 Jaiprakash Power Ventures Limited(JPVL) Generator NR Haryana Yes CTU vide Letter drd (Copy enclosed), indicated no objection for operationalizing 200MW to Haryana from LTA of 704 MW of JPVL, w.e.f Transmission charges shall be paid by JPVL only. 200 UPPCL CTU vide Letter drd (Copy enclosed), indicated no objection for operationalizing 200MW to UPPCL from LTA of 704 MW of JPVL, w.e.f Transmission charges shall be paid by JPVL only.

113 S. No. Name of LTA Customer (Injecting utility) Generator/Load/ Region Trader 27 Jaypee Karcham Hydro Power Corporation Limited (JPVL) Quantum of LTA granted LTA with Name of the tied up beneficiaries beneficiaries Quantum for target Regions (MW) - for LTA with untied beneficiaries Whether applicable during the month Generator NR Rajasthan Discoms Yes CTU vide Letter drd (Copy enclosed), indicated no objection for operationalizing 104MW to Rajasthan Discoms from LTA of JPVL, w.e.f Transmission charges shall be paid by JPVL only. 28 JINDAL Generator WR NA Yes 29 Lanco Anpara Generator NR NA Yes 30 Lanco Green Power Private Limited Generator NR NA Yes 31 Lanco Kondapalli PPL Generator SR 0 0 NA Yes 250MW relinquished by LKPL w.e.f as per CERC Order dtd in Pet. 63/MP/ Maithon Power Limited (MPL U#1) Generator ER NA Yes 33 MPPTC (DVC Power) Trader WR MP Yes 34 NDPL (CLP Jhajjar) Load NR NDPL Yes 35 NDPL (DVC Power) Load NR NDPL Yes 36 NDPL (MPL U#1) Load NR NDPL Yes 37 NDPL (MPL U#2) Load NR NDPL Yes 38 NDPL (DVC Power) Load ER NDPL Yes 39 PTC (Budhil) Trader NR NA Yes 40 PTC(Lanco Amarkantak) Trader WR NA Yes 41 PTC(Malana-II/Everest Power) Trader NR PSEB Yes 42 Punjab (DVC Durgapur U#1) Load NR PSPCL Yes 43 Punjab (PPCL) Load NR Punjab Yes 44 Spectrum Coal & Power Generator WR 60 0 NA Yes 45 Torrent Power Generator WR MP Yes 46 WBSEDCL (MPL U #1&2) Load ER WBSEDCL Yes 47 WBSEDCL (MPL U#1) Load ER WBSEDCL Yes 48 WBSEDCL (MPL U#2) Load ER WBSEDCL Yes 49 Adhunik Power & Natural Resources Ltd Generator ER WBSEDCL Yes 50 Tata Steel Ltd (DVC, Mejia B) Load ER Tata Steel Yes 200MW LTA effective from Tata Steel Ltd (DVC, DSTPS) Load ER Tata Steel Yes 52 Jindal Power (Chattisgarh) Generator WR TANGEDCO Yes Transmission charges shall be paid by JPL only 53 JPVL - Nigri STPS (Unit#1) Generator WR MPPMCL Yes LTA to MPPMCLto be considered MW from onwards 54 JPVL - Nigri STPS (Unit#2) Generator WR MPPMCL Yes LTA to MPPMCLto be considered MW from onwards 55 MB Power Generator WR MPPMCL Yes LTA to MPPMCLto be considered MW from onwards Total Remarks Note : 1. The above information is based on LTA intimation/letter issued by CTU to different applicants. For billing purpose, the same may be verified by RLDCs/RPCs/NLDC and addition / deletion of LTA/MTOA to the above, noticed if any, may please be informed for n.a The above does not include the MOP allocation. As per Regulations, ISTS Transmission charges are not applicable for Solar Projects, therefore LTA for Solar Projects is not included.

114 Sl. No. Name of the Applicant Injection of Power Entity / Location of Generating Station MTOA Status for the month June, 2015 Region MTOA Granted for (MW) Date from which MTOA is Granted Date upto which MTOA Granted Drawl of Power Entity / Location of Loads 1 WBSEDCL Baghlihar, Jammu & Kashmir NR WBSEDCL, West Bengal ER Region ANNEXURE-18/2 Remarks 2 WBSEDCL Mejia Unit-7&8, DVC ER WBSEDCL, West Bengal ER 3 National Energy Trading and Service Ltd. Lanco Anpara Power Ltd., Uttar NR TANGEDCO, Tamil Nadu SR Pradesh 4 Jindal Power Limited Jindal Power Limited, Chhattisgarh WR TANGEDCO, Tamil Nadu SR 5 Adani Enterprises Limited Adani Power Limited Stage -III, Mundra, Gujarat 6 KSK Mahanadi Power Company Limited KSK Mahanadi Power Co. Ltd., Chhattisgarh WR TANGEDCO, Tamil Nadu SR WR APCPDCL, Andhra Pradesh SR 7 WBSEDCL WBSEDCL ER Bangladesh International Refer CTU letter dtd Jindal Stainless Ltd Jindal Stainless Ltd, Odisha ER Jindal Stainless Ltd, Hissar, Haryana 9 Jindal Stainless Ltd Jindal Power Limited, Duburi ER Jindal Stainless Ltd, Hissar, Haryana NR Refer CTU ltr dtd NR Refer CTU ltr dtd PTC India Ltd Balco, Korba, Chattisgarh WR KSEB, Kerala SR Refer CTU Ltr dtd (MTOA enhanced from 58 MW to 100MW w.e.f ) 11 UT of Daman-Diu NSPCL, Bhilai WR UT of Daman-Diu WR Refer CTU Ltr dtd Page 1 of 1

115 ANNEXURE-20 Status of Deviation Charges Payable/Receivable to WR Deviation Pool Fund Account Last updated on 07/07/15 Total dues Principal Payments overdue Principal CSPDCL 1,09,03,746 MP Power Management Co. Ltd. -58,82,682 GETCO LTD. -1,06,07,487 MSLDC UI Settlement account 1,05,71,175 Goa -23,70,853 D&D 1,53,45,919 1,24,60,771 D&NH -3,62,090 NTPC -1,53,94,309 NR 78,47,37,354 38,56,09,221 SR 2,29,10,316 ER -29,31,19,206 JINDAL POWER LIMITED 80,97,072 HVDC Vin. -1,15,572 HVDC Bha. -1,05,453 Lanco Amarkantak Power Ltd 2,77,171 NSPCL -6,11,939 ACBIL 3,12,37,338 4,07,09,084 RGPPL -1 BALCO 90,94,649 12,88,260 CGPL UMPP MUNDRA -15,51,500

116 DCPP JSPL 53,24,010 Essar Power MP Ltd 22,08,96,949 22,00,94,934 SASAN Power limited -60,47,100 KSK Mahanadi -20,84,856 Vandana Vidyut Ltd 8,46,74,245 8,45,79,936 EMCO Energy ltd. 35,59,410 42,88,659 KORBA WEST POWER Corp. LTD 2,04,54,581 1,91,87,624 D. B.Power 6,96,189 1,67,005 JAYPEE NIGRI TPP 3,43,71,678 Essar Steel India Ltd 1,04,21,803 81,87,693 DGEN (Torrent Energy Limited) 8,68,866 6,35,628 GMR Chhattisgarh Energy ltd 27,26,257 8,19,562 Dhariwal Infrastructure Ltd. 14,16,984 11,31,564 RKM Powergen Pvt Ltd. -1,294 MB Power (Madhya Pradesh) Ltd. 15,13,323 3,81,769 Jhabua Power Ltd 1,81,89,810 1,58,43,650 SKS POWER GENERATION (CHHATTISGARH) LTD 1,38,701 66,532 Note : This includes : 1. DSM Accounts issued upto 12th week of ie., TO DSM Payments received and distributed upto

117 ANNEXURE 20A Status of Reactive Energy Charges Payable to REC Pool Account Last updated on 07/07/15 (+) Payable / (-) Receivable from Pool Amount in Rs. Total dues Principal Total overdues Principal GETCO -2,61,399 MPMPCL 0 CSPDCL 46,372 MSEDCL 0 Goa 0 DD 0 DNH 2,15,027 TOTAL 0 0 *When Receivables are more than payable, total of all receivables made equal to payable. *When all are receivable, all receivables made zero. Note : This includes : 1. REC Accounts issued upto 12th week of ie., to REC Payments received up to

118 FREQUENCY PARTICULARS OF WESTERN REGION FOR THE PERIOD FEBRUARY 2015 TO JUNE 2015 ANNEXURE 21.1(a) Sr.No. PARTICULARS Feb-15 Mar-15 Apr-15 May-15 Jun-15 1 MAXIMUM FREQUENCY (Hz) 1.1 Integrated over an hour Instantaneous MINIMUM FREQUENCY (Hz) 2.1 Integrated over an hour Instantaneous AVERAGE FREQUENCY (Hz) Hz Hz Hz NUMBER OF TIMES FREQUENCY TOUCHED PERCENTAGE TIME WHEN FREQUENCY WAS 5.1 Above Hz Between 49.9 Hz & Hz Below 49.9 Hz

119 ANNEXURE (B) POWER SUPPLY POSITION IN WR FOR PERIOD FROM FEBRUARY 2015 TO JUNE 2015 (IN EX-BUS MW) Chhatisgarh Gujarat Madhya Pradesh Maharashtra Details Feb-15 Mar-15 Apr-15 May-15 Jun-15 Feb-15 Mar-15 Apr-15 May-15 Jun-15 Feb-15 Mar-15 Apr-15 May-15 Jun-15 Feb-15 Mar-15 Apr-15 May-15 Jun-15 Availability (MW) Unrestricted demand (MW) Deficit(-)/Surplus(+) in MW Deficit(-)/Surplus(+) in % POWER SUPPLY POSITION IN WR FOR PERIOD FROM FEBRUARY 2015 TO JUNE 2015 (IN EX-BUS MW) Details Goa Daman & Diu Dadra & Nagar Haveli Western Region Feb-15 Mar-15 Apr-15 May-15 Jun-15 Feb-15 Mar-15 Apr-15 May-15 Jun-15 Feb-15 Mar-15 Apr-15 May-15 Jun-15 Feb-15 Mar-15 Apr-15 May-15 Jun-15 Availability (MW) Unrestricted demand (MW) Deficit(-)/Surplus(+) in MW Deficit(-)/Surplus(+) in % POWER SUPPLY POSITION IN WR FOR PERIOD FROM FEBRUARY 2015 TO JUNE 2015 (IN MUs) EX-BUS Details Chhatisgarh Gujarat Madhya Pradesh Maharashtra Feb-15 Mar-15 Apr-15 May-15 Jun-15 Feb-15 Mar-15 Apr-15 May-15 Jun-15 Feb-15 Mar-15 Apr-15 May-15 Jun-15 Feb-15 Mar-15 Apr-15 May-15 Jun-15 Availability (MUs) Unrestricted Requirement (MUs) Deficit(-)/Surplus(+) in MUs Deficit(-)/Surplus(+) in % POWER SUPPLY POSITION IN WR FOR PERIOD FROM FEBRUARY 2015 TO JUNE 2015 (IN MUs) EX-BUS Details Goa Daman & Diu Dadra & Nagar Haveli Western Region Feb-15 Mar-15 Apr-15 May-15 Jun-15 Feb-15 Mar-15 Apr-15 May-15 Jun-15 Feb-15 Mar-15 Apr-15 May-15 Jun-15 Feb-15 Mar-15 Apr-15 May-15 Jun-15 Availability (MUs) Unrestricted Requirement (MUs) Deficit(-)/Surplus(+) : in MUs Deficit(-)/Surplus(+) : in %

120 Voltages at the important 400 and 765 kv substations during the period February 2015 TO JUNE 2015 ANNEXURE kv S/S Indore Itarsi Karad Dhule Asoj Kasor Bhilai Jetpur Month Max Min Max Min Max Min Max Min Max Min Max Min Max Min Max Min Feb-15 Mar-15 Apr-15 May-15 Jun kv S/S Bina Gwalior Nagda Khandwa Sipat (765 kv) Seoni (765 kv) GWALIOR (765 kv) BINA (765 kv) Month Max Min Max Min Max Min Max Min Max Min Max Min Max Min Max Min Feb Mar Apr May Jun

121 ANNEXURE -21.3/1 Under Frequency Operation in various Constituent System of Western Region during the month FEBRUARY 2015 ( Compiled from the data received from the constituents) Sl. No Date Gujarat Chhattisgarh Madhya Pradesh Maharashtra No. of Occasions Max Load Relief at 49.2 Hz No. of Occasions Max Load Relief at 49.2 Hz No. of Occasions Max Load Relief at 49.2 Hz No. of Occasion s Max Load Relief at 49.2 Hz 1 01-Feb Feb Feb Feb Feb Feb Feb Feb Feb Feb Feb Feb Feb Feb Feb Feb NIL NIL NIL Feb Feb Feb Feb Feb Feb Feb Feb Feb Feb Feb Feb Max Total Recommonded Load relief at 49.2 Hz / 49.0/48.8/48.6 Hz

122 Under Frequency Operation in various Constituent System of Western Region during the month MARCH Sl. No Date Gujarat Chhattisgarh Madhya Pradesh No. of Occasions Max Load Relief at 49.2 Hz No. of Occasions Max Load Relief at 49.2 Hz No. of Occasions Max Load Relief at 49.2 Hz ANNEXURE -21.3/2 No. of Occasions Maharashtra Max Load Relief at 49.2 Hz 1 01-Mar Mar Mar Mar Mar Mar Mar Mar Mar Mar Mar Mar Mar Mar Mar Mar Mar NIL NIL NIL Mar Mar Mar Mar Mar Mar Mar Mar Mar Mar Mar Mar Mar Mar Max Total Recommonded Load relief at 49.2 Hz / 49.0/48.8/48.6 Hz

123 Under Frequency Operation in various Constituent System of Western Region during the month APRIL 15 ( Compiled from the data received from the constituents) Sl. No Date Gujarat Chhattisgarh Madhya Pradesh No. of Occasions Max Load Relief at 49.2 Hz No. of Occasions Max Load Relief at 49.2 Hz No. of Occasions Max Load Relief at 49.2 Hz ANNEXURE -21.3/3 No. of Occasions Maharashtra Max Load Relief at 49.2 Hz 1 01-Apr Apr Apr Apr Apr Apr Apr Apr Apr Apr Apr Apr Apr Apr Apr Apr Apr NIL NIL NIL Apr Apr Apr Apr Apr Apr Apr Apr Apr Apr Apr Apr Apr Max Total Recommonded Load relief at 49.2 Hz / 49.0/48.8/48.6 Hz

124 ANNEXURE -21.3/4 Under Frequency Operation in various Constituent System of Western Region during the month MAY 15 ( Compiled from the data received from the constituents) Sl. No Date Gujarat Chhattisgarh Madhya Pradesh Maharashtra No. of Occasions Max Load Relief at 49.2 Hz No. of Occasions Max Load Relief at 49.2 Hz No. of Occasions Max Load Relief at 49.2 Hz No. of Max Load Relief Occasions at 49.2 Hz 1 01-May May May May May May May May May May May May May May May May May-15 NIL 0 NIL NIL NIL May May May May May May May May May May May May May May Max Total Recommonded Load relief at 49.2 Hz / 49.0/48.8/48.6 Hz

125 ANNEXURE -2.3/5 Under Frequency Operation in various Constituent System of Western Region during the month JUNE 15 ( Compiled from the data received from the constituents) Sl. No Date Gujarat Chhattisgarh Madhya Pradesh Maharashtra No. of Occasions Max Load Relief at 49.2 Hz No. of Occasions Max Load Relief at 49.2 Hz No. of Occasions Max Load Relief at 49.2 Hz No. of Occasions Max Load Relief at 49.2 Hz 1 01-Jun Jun Jun Jun Jun Jun Jun Jun Jun Jun Jun Jun Jun Jun Jun Jun Jun NIL NIL NIL Jun Jun Jun Jun Jun Jun Jun Jun Jun Jun Jun Jun Jun Max Total Recommonded Load relief at 49.2 Hz / 49.0/48.8/48.6 Hz

126 ANTICIPATED POWER SCENARIO IN WR FOR PERIOD FROM JULY 2015 TO SEPTEMBER 2015 (IN MW)(EX-BUS) ANNEXURE -22 Details Jul-15 Aug-15 Sep-15 Jul-15 Aug-15 Sep-15 Jul-15 Aug-15 Sep-15 Jul-15 Aug-15 Sep-15 Unrestricted demand (MW) Availability (MW) Deficit(-)/Surplus(+) CHATTISHGARH GUJARAT MADHYA PRADESH MAHARASHTRA (i) MW ( ii) % Details Jul-15 Aug-15 Sep-15 Jul-15 Aug-15 Sep-15 Jul-15 Aug-15 Sep-15 Jul-15 Aug-15 Sep-15 Unrestricted demand (MW) Availability (MW) Deficit(-)/Surplus(+) GOA DD (i) MW (ii) % DNH WESTERN REGION ANTICIPATED POWER SCENARIO IN WR FOR PERIOD FROM JULY 2015 TO SEPTEMBER 2015 (IN MUs)(EX-BUS) Details Jul-15 Aug-15 Sep-15 Jul-15 Aug-15 Sep-15 Jul-15 Aug-15 Sep-15 Jul-15 Aug-15 Sep-15 Unrestricted Requirement (MUs) Availability (MUs) Deficit(-)/Surplus(+) CHATTISHGARH GUJARAT MADHYA PRADESH MAHARASHTRA (i) MUs (ii) % Details Jul-15 Aug-15 Sep-15 Jul-15 Aug-15 Sep-15 Jul-15 Aug-15 Sep-15 Jul-15 Aug-15 Sep-15 Unrestricted Requirement (MUs) Availability (MUs) Deficit(-)/Surplus(+) GOA DD DNH WESTERN REGION (i) MUs (ii) %

127