u gq~ 129cIT ~ ~I ~ ~/ No. WRPC/29 th WRPC Mtg.lAS/ $ 06' 7 "3 Date:

Transcription

1 ~mqw government of India ~~~ Central Electricity Authority ~~~~ Western Regional Power Committee ~ -3, ~~ ~ 0lm't (~), ~ F-3, MIOe Area, Andheri (East), Mumbai ~ ~.m g ISO: ~ Phone: ; /95/96; ~ Fax: Website: ms-wrpc@nic.in SPEED POST u gq~ 129cIT ~ ~I ~ ~/ No. WRPC/29 th WRPC Mtg.lAS/ $ 06' 7 "3 Date: -- w.rr?[, ft 0, (~~cfi~) (As per enclosed list) ~ g m"'qlf ~ ~ ~ c T 29 eft ~ c T Gw.:f~~"1 Sub.: Agenda of the 29 th meeting of Western Regional Power Committee ~/Sir, ~ q;r cfim~ 24 ~ 2015, 10:00 ~ c6r Aurangabad tr 0illilfV1~ ~ cmrit m'q11 ~ ~ ~ c T 29 eft ~ o;cf ~ ~ 23 ~ 2015, 10:00 ~ c6r 0i1'41fV1~i'R cmrit ~Gf)f.1cbl B~~FH ~ c T ~ c T Gf)14~~1~ ~ I Please find enclosed herewith the Agenda of the 29 th meeting of Western Regional Power Committee to be held on 24th July 2015 at 10:00 hrs to be preceded by TCC meeting on 23 rd July 2014 at 10:00 hrs at Aurangabad for your needful. " ~Nours faithfully, Encl: As Above (~ G: 2JGf)fll~1 S Taksande) ~ ~(m/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 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 1 3 ITEM NO.3 ITEM NO.4 UTILIZATION OF PUMPED STORAGE STATIONS IN PUMPING MODE DURING OFF-PEAK HOURS SCHEDULING OF SOLAR POWER THROUGH INTERSTATE BILATERAL TRANSACTION 6 10 ITEM NO.5 SCHEDULING OF 10 MW ALLOCATION OF POWER TO BARC FACILITIES (TAPS 3 &4) FROM NPCIL TAPS 3&4 11 ITEM NO.6 FUNDING FROM PSDF 13 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 20 ITEM NO.9B MASTER PLAN COMMUNICATION 21 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 27 ITEM NO.12.3 ISLANDING SCHEMES FOR TAPS 1 & 2 AND TAPS 3 & 4 28 ITEM NO.13 DEVIATION SETTLEMENT MECHANISM AND RELATED MATTERS (FIRST AMENDMENT) REGULATIONS, 2014 DATED TH DECEMBER 2014 ITEM NO.14 HON BLE CERCS REGULATIONS 31 ITEM NO.15 READINESS OF SLDC AT GOA, OTHER SLDCS AND WRLDC 34 ITEM NO.16 DECLARATION OF TRANSMISSION ELEMENTS 35

5 INTO COMMERCIAL OPERATION BY ISTS LICENCEES ITEM NO.17 DECLARATION OF ISGS IN TO COMMERCIAL OPERATION 35 ITEM NO.18 GRANT OF MTOA AND LTOA BY POWERGRID 35 ITEM NO.19 STATUS OF LETTER OF CREDIT(LC) OPENING AGAINST DEVIATION CHARGES LIABILITY FOR ITEM NO.20.1 STATUS OF DEVIATION CHARGES 37 ITEM NO.20.2 STATUS OF REACTIVE ENERGY CHARGES 38 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 39 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 43 EXECUTED/IMPLEMENTED BY TRANSMISSION AGENCIES ITEM NO.24 STATUS OF COMPLETION OF 765/400 KV AND ABOVE ON GOING TRANSMISSION SCHEMES BEING 46 EXECUTED/IMPLEMENTED BY TRANSMISSION AGENCIES ITEM NO.25 WRPC MEMBERSHIP FOR RATTANINDIA POWER LIMITED 47 ITEM NO.26 ANY OTHER ITEM 48 ITEM NO.27 DATE AND VENUE OF NEXT WRPC MEETING 48

6 ANNEXURES ANNEXURE ANNEXURE -3 ANNEXURE - 15 ANNEXURE ANNEXURE - 18 ANNEXURE - 20 ANNEXURE 20A ANNEXURE- 21.1(a) ANNEXURE-21.1 (b). ANNEXURE ANNEXURE-21.3 ANNEXURE-22 PARTICULARS REPORT ON PUMP MODE OPERATION OF KADANA HYDRO UNITS 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. ************************

7 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 ki jaanaovaalai 29 vai baozk ki kaya-saucai AGENDA NOTES OF 29 th MEETING OF WRPC TO BE HELD ON 23 rd & 24 th JULY 2015 AT AURANGABAD Hosted by NPCIL maumba[- MUMBAI

8 AGENDA NOTES FOR THE 29 th MEETING OF WESTERN REGIONAL POWER COMMITTEE TO BE HELD ON 24 TH JULY 2015 (FRIDAY) PRECEDED BY TCC MEETING ON 23 RD JULY 2015(THURSDAY) AT AURANGABAD (MAHARASHTRA) 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 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. 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: 2) TCC discussed the documentation required for COD as per contractual obligations and regulatory provisons, as different cases had to provide 1

9 Unquote: 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 After insertion of request made by NTPC, the above quoted lines becomes 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 No other comments have been received. Committee may discuss above comments and confirm the minutes accordingly. 2

10 ITEM NO 2 : SYSTEM STRENGTHENING 2.1 Conversion of fixed Reactor to switchable Reactor; 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 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. PGCIL may update the status. 2.2 Extension on 220 kv Network at GIS Navi Mumbai station 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. 3

11 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 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. 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. 4

12 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. MSETCL and PGCIL may update the status kv Extension feeders at 765/400 kv/220 kv sub-station at Aurangbad. 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 and also 400/220 kv is not operating since the last one year. Further, there is no 220 kv network to cater the load of Aurangabad substation 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. 5

13 Director, MSETCL informed that 220 kv Chitegaon-Shendra evacuation line at Aurangabad shall be completed in about six months time. MSETCL May update the status. 2.4 Readiness of Kudus sub-station : 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 be kept ready the 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). MSETCL May update the status. 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 6

14 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 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: 1 Station Paithon (Jayakwad i) Capacit y 1x12 2 Ujjaini 1x12 3 Bhivpuri 1x90 4 Bhira 1x150 5 Ghatghar 2x125 6 Sardar Sarovar State Maharashtr a Maharashtr a Maharashtr a Maharashtr a Maharashtr a Pumped Storage commissione d Capability of working in pumping mode Whethe r being operate d in pumpin g mode 7 Yes 6x200 Gujarat No Yes No Availabilit y of Telemetr y No Yes Yes No Yes No No Yes Yes No No Yes Yes Yes No Tail race reservoir No Yes

15 Station Capacit y State Pumped Storage commissione d Capability of working in pumping mode (Garudeshwa r) to be completed : Target-18 months Whethe r being operate d in pumpin g mode 7 Kadana-I 2x60 Gujarat Yes Yes No No 8 Kadana-II 2x60 Gujarat Yes Yes No No Availabilit y of Telemetr y Envisaged PSP schemes: Maharashtra: Koyna left bank (2x40 MW), Malsej Ghat (700 MW) and Humbarli 400 MW) Madhya Pradesh: Mara (1100 MW) and 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 and 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 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.. 8

16 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 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 mechansism of how it could be shared may be also brought the notice of all when PSP is studied in detail. 9

17 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 be forwarded to WRPC. NCA may update the status & Committee may discuss the same. 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 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 10

18 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/WRPC members may like to discuss. ITEM No.5: SCHEDULING OF 10 MW ALLOCATION OF POWER TO BARC FACILITIES (TAPS 3 &4) FROM NPCIL TAPS 3&4. 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 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 11 of

19 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 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. 12

20 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/WRPC members may like to discuss. ITEM No. 6 : FUNDING FROM PSDF 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. 13

21 (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 transmission system for relieving congestion. (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. 14

22 The proposals 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 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 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 15

23 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. For recommending these projects to the appraisal Committee. The Committee may comprise of MS WRPC, GM WRLDC, ED/CE (STU) from the constituents, ED POWERGRID, ED NTPC. TCC/WRPC members may like to discuss. ITEM NO. 7 REVISION OF DSM ACCOUNTS AND PAYMENT OF INTEREST THEREOF & STOA REVISIONS : A) Revision of DSM Accounts and payment of interest thereof : 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 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 written 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 16

24 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; 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 17

25 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/WRPC may discuss and guide in this matter. B) STOA revisions : 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 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 18

26 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/WRPC members may like to discuss. ITEM NO 8: PROCUREMENT OF ERS SUBSTATION/SYSTEM OF 400/220/33KV 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. WRPC agreed in principle and suggested discussion in technical committee meeting to 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. Matter was again 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. 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 19

27 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 kv Dehgam, Itarsi and one available with Adani. at 400kV & one at 500kV level total two ERS PGCIL may give the brief details on above & WRPC/TCC may discuss the same. 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 20

28 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 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. PGCIL, Alstom and Members agreed the same. TCC/WRPC members may like to note. 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 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/WRPC members may like to discuss. 21

29 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. 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 the meet the above data flow. Requirement of enhanced capacity in view of above has been worked out by PGCIL which will be implemented in the 2 nd phase. TCC/WRPC members may like to note. 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 22

30 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. 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/WRPC members may like to note. 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 23

31 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 members may like to discuss and approve. 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. TCC/WRPC members may like to discuss and approve. ITEM NO. 11: TESTING OF SPS ENVISAGED FOR SR-NEW GRID OPERATION AND 765 KV AGRA-GWALIOR LINES 11.1 : SPS ENVISAGED FOR SR-NEW GRID OPERATION : 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 24

32 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. 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, 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. 25

33 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 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 PCM 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/WRPC members may like to discuss/note. 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 26

34 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 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. TCC/WRPC members may like to note. 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 Backing down automatically to bring down the generation to 3300MW Two lines trip and export is between 3300 to 3500MW then trip unit 40.

35 iii) D/C trips 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 members may like to note. 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 28

36 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/WRPC members may like to note. ITEM NO. 13 : DEVIATION SETTLEMENT MECHANISM AND RELATED MATTERS (FIRST AMENDMENT) 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 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 29

37 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: 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/WRPC members may like to discuss. 30

38 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 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 31

39 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 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. 32

40 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). 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. 33

41 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) WRP Committee may like to note 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 TCC/WRPC members may like to discuss. 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. 34

42 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. Respective utilities may update the status & WRP Committee may like to discuss. 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. WRP Committee may like to discuss/note. 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 UMPP 6-660MW NA JAYPEE NIGRI 2-600MW NA MB POWER 1-600MW MCCPL(ACBI 1-300MW 4 L) JHABUA POWER LTD 1-600MW JPL STAGE MW NA 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. TCC/WRPC members may like to note. 35

43 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 D&D OPENED LC ON Previous LC of Rs 53 lakhs is valid upto D&NH JPL LANCO ACBIL RGPPL Previous LC of Rs 66 lakhs is valid upto OPENED LC ON BALCO CGPL UMPP MUNDRA DCPP JSPL

44 14 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 TCC/WRPC members may like to note. 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 TCC/WRPC members may like to note. 37

45 20.2 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. TCC/WRPC members may like to note :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. 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 38

46 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. TCC/WRPC members may like to note. 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

47 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 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 TCC/WRPC members may like to note. 40

48 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 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. 41

49 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 July Bhopal 80 MVAR MPPTCL July ISP 125 MVAR NHDC December Line reactor at Nagda-ISP line at Nagda end 50MVAR MPPTCL July Satpura 50 MVAR MPPGCL April Sasan Bus reactor 240 MVAR RELIANCE Commissioned on 23 rd May *50 MVAR existing bus reactor to be shifted to Nagda-ISP line as line reactor after commissioning of 125 MVAr reactor at Nagda. *50 MVAR existing bus reactor to be shifted to Nagda-ISP line as line reactor. WRP Committee may like to update/note as above. 42

50 21.3 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 WRP Committee may like to note as above. ITEM No. 22: ANTICIPATED POWER SUPPLY POSITION IN WESTERN REGION FOR THE PERIOD FROM JULY 2015 TO SEPTEMBER 2015 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 %. WRP Committee may like to note as above. 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 July -15 ROW problem kv Gwalior - Jaipur line (1st Ckt) S/C July-15 43

51 3 765 kv Dharamjaygarh - Jabalpur Pooling Station D/C line kv Wardha Nizamabad- Hyderabad D/C July-15 March kv Narendra-Kolhapur D/C Dec kv Aurangabad - Boisar line D/C line kv Aurangabad (PG) - Padghe (PG) D/C Nov Sept kV DC Champa Kurukshetra Bipole kv Aurangabad- Solapur D/C line 10 LILO of both circuits of Aurangabad Pune 400 kv D/c line at Pune 765/400 kv GIS Sept 2015 Oct July kv Parli-Pune(Sikarapur) LILO at Sikarapur Commissioned on kv Raipur Champa Commissioned on kv Indore-Vadodara Commissioned on CHHATTISHGARH 1 LILO of 400 kv Korba west- Khedamara at Marwa 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 July July 2015 July August LILO of 220 Korba (E)- Bishrampur line at 220 kv Churri S/s Commissioned on 01/05/

52 GUJARAT kv D/C Mundra-Zerda line No. 1 Sept kv D/C Mundra-Zerda line No. 2 Sept kv D/C Vadinar-Amreli line Sept kV APL-Hadala LILO to Halvad Sept kv D/C Amreli-Kasor line(part-1) Sept kv Charanka- Veloda Sept 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) kv Akola(II)-Ektuni -2 ( To be charge at 400kV at Tapthithanda) July Dec-15 Dec -15 July -16 July kV IEPL-Warora July 2015 GUJARAT (IPTC route) by WR Transmission (Guj) Pvt. Ltd kv Rajgarh(PG)-Karamsad (GETCO) D/C July 2015 STERLITE (JTCL) kv Dhramjaygarh - Jabalpur (JTCL) D/C line Sept Severe ROW Problem 45

53 2 765 kv Jabalpur - Bina (JTCL) S/c Sept Severe ROW Problem 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 WRP Committee may like to note as above. 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 July 2015 MAHARASHTRA July 2015 CHANDRAPUR September 2016 KORADI August 2015 KORADI March PARLI December

54 MADHYA PRADESH M/s Jhabua Power, Seoni July 2015 Moser Bear (Hindustan power) December 2015 Essar Power MP Ltd(Mahan) July CENTRAL SECTOR/IPP VINDYACHAL OCT KSK Sept 2015 KSK December 2015 SASAN COD on ACBIL(Maruti) Commissioned on RKM August-2015 RKM Sept 2015 RKM Dec 2015 WRP Committee may like to note as above. ITEM.NO.25: WRPC MEMBERSHIP FOR RATTANINDIA POWER LIMITED 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. 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

55 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 members may like to given their consent for insertion of RattanIndia Ltd. On WRPC membership for the year onwards. ITEM No. 26: ANY OTHER ITEM ITEM No. 27: DATE AND VENUE OF NEXT WRPC MEETING *********** 48

56 ANNEXURE

57 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

58 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

59 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

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61 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

62 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.

63 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.

64 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

65 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

66 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

67 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

68 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

69 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 %

70 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

71 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

72 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

73 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

74 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

75 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

76 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) %

77