1. Administrative Items... SPP. 2. Stakeholder Web-Presentation... ABB

Transcription

1 Southwest Power Pool, Inc. ENTERGY REGIONAL STATE COMMITTEE MINIMIZING BULK POWER COSTS STUDY STAKEHOLDER MEETING Face-to-face & Web-conference Hyatt Regency DFW DFW Airport, TX Room: Maverick AGENDA July 20, :00 4:00 P.M. CT 1. Administrative Items... SPP 2. Stakeholder Web-Presentation... ABB Relationship-Based Member-Driven Independence Through Diversity Evolutionary vs. Revolutionary Reliability & Economics Inseparable

2 ABB Inc., Electric System Consulting Dept. MBPC Study Stakeholder Update Preliminary & Partial Results for Review & Discussion EntergyRegional State Committee (ERSC) Southwest Power Pool (SPP) July 20, 2011 July 20, 2011 Slide 1

3 Agenda 1. Study Overview Study Status Study Approach Results for Western Region - Production Costing & Power Flow Results for WOTAB Region - Production Costing & Power Flow Results for DSG Region - Production Costing & Power Flow Preliminary results for Amite South 6. Next Steps 7. Q&A July 20, 2011 Slide 2

4 Study Status 2013 analyses completed for Western, WOTAB and DSG study regions 2013 preliminary analysis for Amite South study region 2022 reference cases (both production cost and power flow) completed July 20, 2011 Slide 3

5 Study Methodology July 20, 2011 Slide 4

6 Study Approach - Overview July 20, 2011 Slide 5

7 Study Procedure Case Name Case_0 Reference case Definition Case_1 No nomogram(s) () on study units; Study units available for dispatch Case_2 Case_1 + No transmission limits in study region for production costing analysis Case_3 Case 0 + No nomogram(s) on study units + Study units turned off Case_4 Case_3 + No transmission limit in study region for production costing analysis Case_5A Case_3 with Transmission Solution July 20, 2011 Slide 6

8 Adjusted Production Cost Entergy Footprint s Adjusted Production Cost = Entergy Footprint s units production cost + Energy Import to Entergy Footprint s cost Energy Import Cost = (hourly import flow * hourly simple average area LMP of both sending and receiving ends) July 20, 2011 Slide 7

9 Cost Benefit Range Estimation Estimate cost-benefit of transmission solutions by comparing the annual production cost savings against the annualized capital costs of new transmission. This will be used as a guideline in selecting cost effective transmission solution Annualized capital cost = Transmission solution capital cost * Carrying Charge July 20, 2011 Slide 8

10 2013 Western Region Analysis July 20, 2011 Slide 9

11 Western Region Analysis Case List The following cases were simulated: Case Name West_0 West_1 West_2 West_3 West_4 Reference case Definition Same as West_0 with Western region nomogram(s) off (study units available for dispatch) Same as West_1 with no Western area transmission limits and no limits on 8 tie lines between Western & WOTAB in production costing analysis Same as West_0 with Western study units turned off Same as West_3 with no Western area transmission limits and no limits on 8 tie lines between Western & WOTAB in production costing analysis July 20, 2011 Slide 10

12 Western Region Analysis Dispatch Production costing and power flow analysis performed in parallel Western Region generation dispatch and import at Entergy System peak load hour (Aug. 26, 3 pm) are shown below: West_0 West_2 West_3 West_4 Total Generation Lewis Creek Frontier Pelican Road Import into Western July 20, 2011 Slide 11

13 Western Region Analysis Power Flow Steady-state performance was evaluated to determine the impact of displacing the high cost units in the Western study region Several problems were noted with the displacement of the Western region study units in Cases West_3 and West_4 Voltage collapse for selected double contingencies: Also voltage collapse for several G1N1 contingencies Initial solutions were developed based on SPP-ICT and Entergy input to mitigate t the voltage collapse problems and power flow analysis was repeated July 20, 2011 Slide 12

14 Western Region Analysis Power Flow (Contd.) Results showed thermal overloads on several transmission facilities such as: Jacinto-Splendora 138 kv line Eastgate Dayton 138 kv line Dayton New Long John 138 kv line Lewis Creek 230/138 kv transformer Lewis Creek Peach Creek 230 kv line Peach Creek Jacinto 230 kv line Several other facilities within and outside Western Also, several voltage violations within and outside Western Incremental solutions were developed and tested based on SPP-ICT and Entergy input to resolve Western region violations Mitigation of violations outside Western study region will be done later July 20, 2011 Slide 13

15 Western Region Analysis Power Flow (Contd.) Preferred transmission solution set for 2013: Facility Cypress - Jacinto 230 kv with 70% Series Compensation Jacinto - Porter 230 kv 2nd 230/138 kv auto-transformer at Porter Cut-in existing Jacinto-Splendora 138 kv line at Cleveland Orange County Project Navasota - Sota Terminal Equipment upgrade Re-conductor Grimes-Mt. Zion-Huntsville 138 kv 3rd 345/138 kv auto-transformer at Grimes Upgrade terminal equipment for Leach - Toledo 138 kv Re-conductor Sabine - Port Neches 138 kv (line 515 & 516) Upgrade Cleveland - Jacinto 138 kv Porter-Oakridge 138 kv reconductor Total $ 314,509,906 July 20, 2011 Slide 14

16 Western Region Analysis Power Flow (Contd.) Upgrade 138 kv line from Grimes Mt. Zion Huntsville Upgrade terminal equipment on Leach Toledo Bend Grimes Add 3 rd 345/138 kv transformer at Grimes Upgrade terminal equipment on Navasota Sota Add 2 nd 230/138 kv transformer at Porter Lewis Creek Porter Jacinto New 230 kv line from Cypress to Jacinto Bring Jacinto Splendora 138 kv into Cleveland New 230 kv line from Jacinto to Porter Cypress Orange County Project July 20, 2011 Slide 15

17 2013 WOTAB Region Analysis July 20, 2011 Slide 16

18 WOTAB Region Analysis Case List The following cases were simulated: Case Name WOTAB_0 WOTAB_1 WOTAB_2 WOTAB_3 WOTAB_4 Reference case Definition Same as WOTAB_0 with Western and WOTAB region nomogram(s) off (study units available for dispatch) Same as WOTAB_1 with no Western and WOTAB transmission limits in production costing analysis Same as WOTAB_0 with Western and WOTAB study units turned off Same as WOTAB_3 with no Western and WOTAB transmission limits in production costing analysis July 20, 2011 Slide 17

19 Power Flow Analysis for WOTAB Steady-state performance was evaluated to determine the impact of displacing high cost units in Western and WOTAB study regions Several problems were noted with the displacement of high cost units in cases WOTAB_3 and WOTAB_4 Voltage collapse for several contingencies Also voltage collapse for several G1N1 contingencies July 20, 2011 Slide 18

20 WOTAB Region Analysis Power Flow (Contd.) Also, results showed large pre- and post-contingency thermal overloads on several transmission facilities such as: Cypress 500/138 kv transformer Nelson 500/230 kv transformer Grimes 345/138 kv transformers China-Amelia 230 kv line Helbig McLewis 230 kv line Hartburg Inland 230 kv line Several other facilities within and outside Western & WOTAB Also, several voltage violations within and outside Western & WOTAB Incremental solutions were developed and tested based on SPP-ICT and Entergy input to resolve Western and WOTAB region violations Mitigation of violations outside these study regions will be done later July 20, 2011 Slide 19

21 WOTAB Region Analysis Power Flow (Contd.) Preferred transmission solution set for 2013: July 20, 2011 Slide 20 Facility Cypress - Jacinto 230 kv Jacinto - Porter 230 kv 2nd 230/138 kv auto-transformer at Porter Cut-in existing Jacinto-Splendora 138 kv line at Cleveland Orange County Project (minus Hartburg - Chisolm Rd 230 kv) Navasota - Sota Terminal Equipment upgrade Re-conductor Grimes-Mt. Zion-Huntsville 138 kv 3rd 345/138 kv auto-transformer at Grimes Upgrade terminal equipment for Leach - Toledo 138 kv Re-conductor Sabine - Port Neches 138 kv (line 515 & 516) Upgrade Cleveland - Jacinto 138 kv Richard - Nelson 230 kv Nelson - Sabine 230 kv Hartburg - Sabine 500 kv 2nd Cypress 500/138 kv auto-transformer Upgrade terminal equipment at Newton Bulk for Leach - Toledo 138 kv Tubular - Dobbin 138 kv upgrade Upgrade Grimes - Walden (BENTWATER) 138 kv Porter-Oakridge 138 kv reconductor Addis - Tiger upgrade to 704 MVA Total $ 636,186,906

22 WOTAB Transmission Solutions Upgrade Newton Bulk to Leach 138 kv line Leach Re conductor of Tubular to Dobbin 138 kv line Dobbin Add 2 nd 500/138 kv transformer at Cypress Cypress Newton Bulk New 230 kv line from Richard to Nelson Hartburg Tubular New 500 kv line from Hartburg to Sabine Nelson Richard Addition of 2(two) 500/230 kv transformers at Sbi Sabine Sabine New 500 kv Substation at Sabine New 230 kv line from Nelson to Hartburg July 20, 2011 Slide 21

23 WOTAB (Cont...) Western Transmission Solutions Upgrade terminal equipment on Upgrade 138 kv line from Grimes Mt. Zion Huntsville Leach Toledo Bend Grimes Add 3 rd 345/138 kv transformer at Grimes Upgrade terminal equipment on Navasota Sota Add 2 nd 230/138 kv transformer at Porter Lewis Creek Porter Jacinto New 230 kv line from Cypress to Jacinto Bring Jacinto Splendora 138 kv into Cleveland New 230 kv line from Jacinto to Porter Cypress Orange County Project July 20, 2011 Slide 22 22

24 2013 DSG Region Analysis July 20, 2011 Slide 23

25 DSG Region Analysis Case List The following cases were simulated: Case Name DSG_0 DSG_1 DSG_2 DSG_3 DSG_4 Reference case Definition Same as DSG_0 with DSG region nomogram(s) off (study units available for dispatch) Same as DSG_1 with no DSG area transmission limits and no limits on 9 tie lines between DSG & Entergy footprint in production costing analysis Same as DSG_0 with DSG study units turned off Same as DSG_3 with no DSG area transmission limits and no limits on 9 tie lines between DSG & Entergy footprint in production costing analysis July 20, 2011 Slide 24

26 DSG Region Analysis Power Flow Steady-state performance was evaluated to determine the impact of displacing the high cost units in the DSG study region Several problems were noted with the displacement of the DSG region study units in Cases DSG_3 and DSG_4 Results showed thermal overloads on several transmission facilities such as: Snake Farm Labarre 230 kv (146%) Prospect Goodhope 230 kv (120%) Valentine Clovelly 115 kv (133%) Tezcuco Waterford 230 kv (119%) Waterford Gypsy 230 kv (108%) Several other facilities within and outside DSG Also, several voltage violations within and outside DSG July 20, 2011 Slide 25

27 DSG Region Analysis Power Flow (Contd.) Preferred transmission solution set for 2013: Snakefarm - Labarre 230 kv Facility DSG Reliability Improvements: Phase 3 Valentine - Clovelly 115 kv line Willow Glen to Conway 230 kv line Third Adams Creek to Bogalusa 230 kv line Total Cost: $115,015,000 Note: DSG Phase 3 improvements include the following facilities: - Add 4.5mile, 230 kv circuit between Gypsy y and Hooker 230 kv - Remove Waterford Hooker 230 kv and Waterford Gypsy 230 kv circuit #2 - Re-terminate reactor at Waterford 230 kv on the Union Carbide line - Convert Waggaman substation to 230kV - Remove existing Luling Waggaman-9Mile 115 kv - Add Waterford - Waggaman 9Mile 230 kv line - Upgrade Luling American Cynamide 115 kv -Upgrade Gypsy y Claytonia 115 kv - Re-configure Luling Gypsy 115 kv July 20, 2011 Slide 26

28 DSG Transmission Solutions Adams Creek Bogalusa Add a new Bogalusa Adams Creek #3 Willow Glen Add a new Willow Glen Conway 230 kv line Re conductor of Snake Farm to Labare 230 kv line DSG Phase 3 upgrades Conway Snake Farm Labare Vl Valentin e Upgrade Valentine to Clovelly 115 kv Clovelly July 20, 2011 Slide 27

29 2013 Amite South Analysis July 20, 2011 Slide 28

30 Amite South Region Analysis Case List The following cases were simulated: Case Name AMS_0 AMS_1 AMS_2 AMS_3 AMS_4 Reference case Definition Same as AMS_0 with nomogram(s) off (study units available for dispatch) Same as AMS_1 with no AMS area transmission limits and no limits between AMS & Entergy footprint in production costing analysis Same as AMS_0 with AMS study units turned off Same as AMS_3 with no AMS area transmission limits and no limits between AMS & Entergy footprint in production costing analysis

31 Amite South Region Analysis Power Flow Steady state performance was evaluated to determine the impact of displacing the high cost units in the AMS study region The case AMS_3 was found to result in un served load, possibly due to transmission constraints between AMS and rest of the system and unavailability of necessary generation inside AMS; No transmission analysis was performed with this case Several problems were noted with the displacement of the AMS region study units in Cases AMS_4

32 Amite South Region Analysis Power Flow (Cont d) Results showed reliability concerns as under: PotentialVoltagecollapse for severalfacility outages with or without additional generator outages

33 Amite South Region Analysis Power Flow (Cont d) Thermal Overloads such as: Bogalusa Franklin 500 kv (115%) for outage of Mcknt Frklin 500 kv Waterford Gypsy 230 kv (123%) for loss of the other, parallel circuit Waterford 9Mile 230 kv (108%) for outage of Wesco Prspct 230 kv Tezcuco Waterford (132%) for outage of Waterford Gypsy 230 kv this facility showed a system intact loading of 105%. Raceland Pardis 115 kv (115%) for the outage of Gypsy 230/115 kv transformer Valentine Clovelly 115 kv (128%) for outage of Wesco Prspct 230 kv this facility was loaded to 114% in the system intact condition Polscar AAC Licar Bell He showed up to 109% loading for Tezcuco Waterford 230 kv outage The loss of Wells Webre 500 kv showed overload on Teche Waxlake El Passo Bvista Berwick Ramos 138 kv (up to 134% on Teche Waxlake section)

34 Next Steps July 20, 2011 Slide 33

35 Next Steps Develop and Test Transmission Solution(s) for 2013 Amite South Study WOTAB, Western, Amite South and DSGf for year 2022 July 20, 2011 Slide 34

36 Q & A Thank you! July 20, 2011 Slide 35