Entergy Texas, Inc. Transmission Draft Construction Plan Update 1 Projects

Transcription

1 Entergy Texas, Inc. Transmission Draft Construction Plan Update 1 Projects 1

2 ETI Draft Construction Plan Update 1 Projects Completed in the Fall of 2012 & 2013 to date 1) Cedar Hill to Plantation 138 kv line Upgrade line conductor and Station Equipment Completed Feb ) Leach to Newton Bulk Upgrade terminal Equipment at Newton Bulk Completed Mar ) Plantation to Conroe 138 kv Upgrade Station Equipment Completed Apr ) Hickory Ridge to Eastgate Upgrade terminal Equipment at Eastgate Completed Apr ) Plantation to Conroe 138 kv- Reconductor line Completed Apr ) Eastgate to Dayton Bulk Upgrade Terminal Equipment at Eastgate - Completed Apr ) Bentwater Substation 138 kv Add Capacitor Bank Completed May ) Expand Capacitor Bank at Calvert 69 kv Completed May ) Jasper to Rayburn 138 kv line Upgrade Completed May

3 ETI Draft Construction Plan Projects 1. College Station SS Create Emergency tie point with ERCOT 2013 Spring 2. Deweyville (JNEC) 69 kv Add Capacitor Bank 2013 winter 3. Ponderosa Switching Station Tie lines Longmire to Fish Creek and Conroe to Woodhaven into new Switching Station 2013 Winter 4. Pansy to Lovells Lake Upgrade line to 100C 2013 Winter Lovells Lake to Texaco Hillebrandt Upgrade line to 100C 2013 Winter 6. Lewis Creek Egypt Reconductor 2014 Summer 7. Parkway: New Cap Bank Summer 8. Leach DETEC Install breakers 2014 Fall Toledo Bend Leach Reconductor Fall 10. Jacinto to Splendora 138 kv line Upgrade Summer 11. Alden 138 kv Substation Add Capacitor Bank Summer 12. Magnolia Groveton Add Cap Bank Summer 13) China to Amelia 230 kv Construct New line Summer 14) Grimes to Ponderosa: Construct new 230 kv line Summer 15) Ponderosa to Conroe: Reconductor 138 kv line Summer 16) Porter Forest New 138 kv line and Sub Summer ISD 2014 ISD 2015 ISD 2016 ISD 2017 ISD 2018ISD 3

4 ETI Draft Construction Plan Projects 17. Orange County 230 kv Project: New Chisholm Road 230 kv Substation, new line from Hartburg to Chisholm Road, new kv Auto 2017 Summer 18. Sabine to Port Neches (Line 515): Reconductor line Summer 19. Sabine: Upgrade terminal equipment (Sabine to Big 3 Line) Summer 20. Egypt to Panorama 138 kv- Reconductor Summer 21. Construct new China to Stowell 138 kv line Summer 22. Sabine to Port Neches (Line 516): Reconductor line Summer 23. Raywood Add 2 nd 138/69 kv Auto Summer 24. Kolbs 230 kv Add Cap Bank Summer 25. Gulfway 230 Upgrade VFW park 230 kv line bay Summer 26. Splendora to Apollo Upgrade 138 kv line Summer 27. Panorama Longmire Reconductor Summer 28. Raywood Add 2 nd 69 kv line to Daisetta Summer ISD 2016 ISD 2017 ISD 2018 ISD 2019 ISD 4

5 Deweyville 69 kv: Add Capacitor Bank 11-ETI-003 Scenario: The single contingency loss of 69 kv Line 81 (Echo to Deweyville) causes low voltage at the Deweyville 69 kv substation (JNEC-owned). Proposed Solution: Add a 14.4 MVAR capacitor bank at the Deweyville 69 kv substation. Proposed In-Service Date: Winter

6 Deweyville 69 kv: Add Capacitor Bank 11-ETI-003 Install 14.4 MVAR Cap Bank Proposed In-Service: Winter

7 Ponderosa Switching Substation 12-ETI-004 Scenario: Loss of the Lewis Creek-Longmire 138 kv line 596 results in overload of the Tubular-Dobbin 138 kv line segment in addition to future voltage violations at Navasota, Sota, Dobbin, Tubular, Fish Creek, Spring Branch and Longmire for an N-1, G-1 Scenario. Proposed Solution: Install a 138 kv switching substation (4 breaker ring bus) where the Longmire- Fish Creek 138 kv line parallels the Conroe-Woodhaven 138 kv line. Cut in both lines leaving space for a future 230/138 kv Autotransformer. Proposed In-Service Date: Winter

8 Ponderosa Switching Substation 12-ETI-004 Build New 138kV Switching Substation Proposed In-Service: Winter

9 Pansy to Lovells Lake 69 kv Upgrade Line 13-ETI Scenario: Loss of the Memorial to Mid County 138 kv line 563 overloads 69 kv lines 62 and 63. Proposed Solution: Lidar 69 kv lines 62 and 63 to determine extent of mitigation to bring Pansy to Lovells Lake line rating back to 4/0 ACSR conductor rating of 49 MVA. Proposed In-Service Date: Winter

10 Pansy to Lovells Lake 69 kv Upgrade Line 13-ETI Upgrade line to 49 MVA Proposed In-Service: Winter

11 Lovells Lake to Texaco Hillebrandt 69 kv Upgrade Line 13-ETI Scenario: Loss of the Memorial to Mid County 138 kv line 563 overloads 69 kv lines 62 and 63. Proposed Solution: Lidar 69 kv lines 62 and 63 to determine extent of mitigation to bring Lovells Lake to Texaco Hillebrandt line rating back to 4/0 ACSR conductor rating of 49 MVA. Proposed In-Service Date: Winter

12 Lovells Lake to Texaco Hillebrandt 69 kv Upgrade Line 13-ETI Upgrade line to 49 MVA Proposed In-Service: Winter

13 Install Breakers at Leach 14-ETI-004 Scenario: DETEC will tie the existing radial (to Sixmile) out of Leach to AEP and Millcreek (through DETEC 138 kv subs); establishing a potential 3 terminal line. Proposed Solution: DETEC to install breakers at Leach on the 138 kv lines to Toledo Bend and Newton Bulk. Proposed In-Service Date: Fall

14 Install Breakers at Leach 14-ETI-004 New 138 kv tie to AEP and Millcreek Install breakers on both 138 kv lines Proposed In-Service: Fall

15 Upgrade Toledo - Leach 138 kv line 11-ETI-033 Scenario: With the DETEC tie project implementation in Fall of 2014, the Toledo Leach line 449 overloads with the loss of the Cypress to Hartburg 500 kv. Proposed Solution: Reconductor line with 1272 ACSR and upgrade all substation equipment to achieve a minimum line rating of 287 MVA (1200 amps) Proposed In-Service Date: Fall

16 Toledo Bend to Leach 138 kv Upgrade Line 11-ETI-033 Upgrade line to 287 MVA Proposed In-Service: Fall

17 Upgrade Lewis Creek -Egypt 138 kv line 13-ETI-011 Scenario: Lewis creek to Egypt was recently derated and overloads with the loss of the Lewis creek to Caney Creek 138 kv line 648 coupled with the loss of Frontier. Proposed Solution: Reconductor line with 1272 ACSS and upgrade all substation equipment to achieve a minimum line rating of 468 MVA (1957 amps) Proposed In-Service Date: Summer

18 Upgrade Lewis Creek -Egypt 138 kv line 13-ETI-011 Upgrade line to 468 MVA Proposed In-Service: Summer

19 Parkway 138 kv Bus New 50.2 MVAR Cap Bank 11-ETI-042 Scenario: Loss of the Porter to New Caney 138 kv line causes low voltage on the New Caney 138 kv bus. Proposed Solution: Install a new 50.2 MVAR Cap Bank on the Parkway 138 kv bus when it is energized in summer 2014 Proposed In-Service Date: Summer

20 Parkway 138 kv Bus New 50.2 MVAR Cap Bank 11-ETI-042 New Parkway Sub to replace temp Hickory Ridge sub New 50.2 MVAR Cap Bank Proposed In-Service: Summer

21 Upgrade Jacinto Splendora 138 kv line 11-ETI-039 Scenario: Loss of the China to Porter 230 kv line coupled with the loss of the Lewis Creek Unit 1 causes the Jacinto to Splendora line to overload. Proposed Solution: Reconductor line with 1272 ACSS and upgrade all substation equipment to achieve a minimum line rating of 468 MVA (1957 amps) Proposed In-Service Date: Summer

22 Upgrade Jacinto Splendora 138 kv line 11-ETI-039 Upgrade line to 468 MVA Proposed In-Service: Summer

23 Alden 138 kv substation Add 50.4 MVAR Cap Bank 12-ETI-007 Scenario: Loss of the China to Porter 230 kv line coupled with the loss of the Lewis Creek unit 1 causes low voltage on the Alden 138 kv bus. Proposed Solution: Install a 50.4 MVAR Capacitor bank on the Alden 138 kv bus. Proposed In-Service Date: Summer

24 Alden 138 kv substation Add 50.4 MVAR Cap Bank 12-ETI-007 Install 50.2 MVAR Cap bank Proposed In-Service: Summer

25 Magnolia Groveton Add 25.1 MVAR Cap Bank 13-ETI-006 Scenario: Loss of the Rivtrin to Staley 138 line 411 coupled with the loss of the Sam Rayburn generator causes low voltage at Staley and Magnolia Groveton. Proposed Solution: Install a 25.1 MVAR Capacitor bank on the Magnolia Groveton 138 kv bus. Proposed In-Service Date: Summer

26 Magnolia Groveton Add 25.1 MVAR Cap Bank 13-ETI-006 Install 25.1 MVAR Cap bank Proposed In-Service: Summer

27 China Amelia 230 kv Construct New Line 11-ETI-018 Scenario: Loss of the China Sabine 230 line 496 or the China Amelia 230 kv line 599 coupled with loss of generation at Frontier or Lewis Creek causes the remaining line to overload. Proposed Solution: Construct a new China to Amelia 230 kv line utilizing a different route. Proposed In-Service Date: Summer

28 China Amelia 230 kv Construct New Line 11-ETI-018 Construct New 230 kv line Proposed In-Service: Summer

29 Grimes to Ponderosa to Grimes Construct New 230 kv Line Reconductor Ponderosa to Conroe 138 kv line 13-ETI and 13-ETI Scenario: The single contingency loss of either kv Autotransformer at the Grimes 345 kv substation causes the remaining Autotransformer to overload. The future loss of the Grimes to Bentwater 138 kv line results in the Grimes to Mt. Zion 138 kv line and eventually the Mt. Zion to Huntsville 138 kv line to overload The future loss of the Mt. Zion to Grimes 138 kv line results in the Grimes to Bentwater 138 kv line to overload Proposed Solution: Construct a new 230 kv line between Grimes and Ponderosa. Add a 345/230 autotransformer at Grimes and a 230/138 kv autotransformer at Ponderosa. Reconductor the Ponderosa to Conroe 138 kv line. Proposed In-Service Date: Summer

30 Grimes to Ponderosa to Grimes Construct New 230 kv Line Reconductor Ponderosa to Conroe 138 kv line 13-ETI and 13-ETI Construct new 230 kv line Grimes: Add 345/230 Auto Ponderosa: Add 230/138 Auto 13-ETI Reconductor 138 kv line 13-ETI Ponderosa Proposed In-Service: Summer

31 Construct New Porter to Forest 138 kv Transmission Line 13-ETI-012 Scenario: Texas Asset Planning requires a new Distribution Sub that will be cut into the Conroe to Goslin 138 kv line 820. Proposed Solution: Install a new 138 kv line from Porter to the new Distribution Sub to provide VAR support to the Woodlands area. Proposed In-Service Date: Summer

32 Construct New Porter to Forest 138 kv Transmission Line 13-ETI-012 New 138 kv line New Forest Substation Proposed In-Service: Summer

33 Orange County Project 11-ETI-023 Scenario: The loss of the Cypress to Hartburg 500 kv line 547 coupled with the loss of Sabine 4 overloads the Hartburg 500/230 kv autotransformer and the Hartburg Inland Orange McLewis 230 line 195. Proposed Solution: Construct a new 230 kv substation (Chisholm Road) at the intersection of 230 lines 195 (Hartburg Helbig) and 572 (Georgetown Sabine). Install a new 500/230 kv autotransformer at Hartburg and build a new 230 kv line from Chisholm Road to Hartburg. Proposed In-Service Date: Summer

34 Orange County Project 11-ETI-023 Install new 500/230 kv auto at Hartburg Build new Chisholm Rd. Sub, cutting in lines 195 and 572 Build new 230 kv line from Chisholm to Hartburg Proposed In-Service: Summer

35 Sabine to Port Neches 138 kv 515 Upgrade Line 11-ETI-002 Scenario: Loss of the Sabine to Port Neches 138 kv line 516 coupled with loss of the Sabine 4 generator causes an overload of the Sabine to Port Neches 138 kv line 515. Proposed Solution: Reconductor approximately 7.2 miles of conductor and replace all underrated equipment at Sabine and Port Neches to achieve minimum rating of 1764 amps (422 MVA). Proposed In-Service Date: Summer

36 Sabine to Port Neches 138 kv 515 Upgrade Line 11-ETI-002 Upgrade line 515 to 422 MVA Proposed In-Service: Summer

37 Sabine: Upgrade Terminal Equipment on Big kv line 12-ETI-009 Scenario: Loss of the Cypress to Hartburg 500 kv line 547 causes an overload of the Sabine to Big Three 230 kv line 428. Proposed Solution: Upgrade line bay bus and revise relay settings at Sabine to achieve minimum rating of 1710 amps (685 MVA). Proposed In-Service Date: Summer

38 Sabine: Upgrade Terminal Equipment on Big kv line 12-ETI-009 Upgrade Terminal Eq. on Line 428 to increase rating to 685 MVA Proposed In-Service: Summer

39 Upgrade Egypt to Panorama 138 kv line 13-ETI-013 Scenario: Egypt to Panorama overloads with the loss of the Grimes to Crockett 345 KV line 119 coupled with the loss of Frontier. Proposed Solution: Reconductor line with 1272 ACSS and replace all substation equipment with the exception of the 1200 amp line switch at Panorama to achieve minimum line rating of 287 MVA (1200 amps). Proposed In-Service Date: Summer

40 Upgrade Egypt to Panorama 138 kv line 13-ETI-013 Upgrade line to 287 MVA Proposed In-Service: Summer

41 China to Stowell: Construct New 138 kv Line 11-ETI-037 Scenario: Loss of the Mid County to Memorial 138 kv line 563 causes an overload of the 69 kv lines 62 and 63 between South Beaumont, Pansy and Winshire. Proposed Solution: Construct a new 138 kv line between China and Stowell with a minimum rating of 1110 amps (265 MVA) Proposed In-Service Date: Summer

42 China to Stowell: Construct New 138 kv Line 11-ETI-037 Construct a new 230 line (minimum 265 MVA) Proposed In-Service: Summer

43 Sabine to Port Neches 138 kv 516 Upgrade Line 11-ETI-038 Scenario: Loss of the Sabine to Port Neches 138 kv line 515 causes an overload of the Sabine to Port Neches 138 kv line 516. Proposed Solution: Reconductor approximately 7.2 miles of conductor and replace all underrated equipment at Sabine, Linde and Port Neches to achieve minimum rating of 1764 amps (422 MVA). Proposed In-Service Date: Summer

44 Sabine to Port Neches 138 kv 516 Upgrade Line 11-ETI-038 Upgrade line 516 to 422 MVA Proposed In-Service: Summer

45 Raywood Area Improvements Add 2 nd kv Auto at Raywood 14-ETI Scenario: 69 kv lines 57 and 56 overload with the loss of the Raywood 138/69 kv auto Proposed Solution: Install a second 138/69 kv auto matching the size (112 MVA) and impedance of the existing auto. Proposed In-Service Date: Summer

46 Raywood Area Improvements Add 2 nd kv Auto at Raywood 14-ETI Install 2 nd 138/69 kv auto Proposed In-Service: Summer

47 Kolbs 230 kv Capacitor Bank 12-ETI-006 Scenario: The Port Arthur 230 kv loop (Port Arthur Kolbs Hanks - Gulfway VFW Park) experiences low voltage with the loss of the Port Acres Bulk source coupled with the loss of Sabine Generator 4. Proposed Solution: Install a new 72 MVAR Cap Bank on the Kolbs 230 kv bus. Proposed In-Service Date: Summer

48 Kolbs 230 kv Capacitor Bank 12-ETI-006 Install 72 MVAR Cap Bank on Kolbs 230 kv bus Proposed In-Service: Summer

49 Gulfway 230 kv Substation Upgrade VFW Park Line Bay Equipment 12-ETI-017 Scenario: A breaker failure on 230 kv Breaker at Sabine causes the Gulfway to VFW Park 230 line 197 to overload. Proposed Solution: Replace the 1272 ACSR line bay riser at Gulfway 230 kv substation on the VFW Park line bay to achieve a minimum rating of 1720 amps (685 MVA). Proposed In-Service Date: Summer

50 Gulfway 230 kv Substation Upgrade VFW Park Line Bay Equipment 12-ETI-017 Replace line bay riser to obtain 685 MVA line rating Proposed In-Service: Summer

51 Splendora to Apollo 138 kv Upgrade Line 11-ETI-026 Scenario: Loss of the Porter - China 230 line 822 causes an overload of the Splendora to Apollo 138 kv line 571. Proposed Solution: Reconductor approximately 2.67 miles of conductor and upgrade bus and line bay risers at Apollo and Splendora to achieve minimum rating of 1957 amps (468 MVA). Proposed In-Service Date: Summer

52 Splendora to Apollo 138 kv Upgrade Line 11-ETI-026 Upgrade line to 468 MVA Proposed In-Service: Summer

53 Upgrade Panorama to Longmire 138 kv line 13-ETI-014 Scenario: Panorama to Longmire overloads with the loss of the Grimes to Crockett 345 KV line 119 coupled with the loss of Frontier. Proposed Solution: Reconductor line with 1272 ACSS and replace all substation equipment with the exception of the 1200 amp Breaker at Longmire to achieve minimum line rating of 287 MVA (1200 amps). Proposed In-Service Date: Summer

54 Upgrade Panorama to Longmire 138 kv line 13-ETI-014 Upgrade line to 287 MVA Proposed In-Service: Summer

55 Raywood Area Improvements Add 2 nd 69 kv Line from Raywood to Daisetta 14-ETI Scenario: 69 kv lines 55 and 56 overload with the loss of the Raywood-Daisetta 69 kv line 57. Also, Raywood Daisetta 69 kv overloads with the loss of Amelia Sour Lake. Proposed Solution: Extend 69 kv line 440 from the tap point to South Liberty to the Daisetta Substation (2.2 miles). Line rating will be limited by existing 795 AA (775 amps). Proposed In-Service Date: Summer

56 Raywood Area Improvements Add 2 nd 69 kv Line from Raywood to Daisetta 14-ETI Install 2 nd 69 kv line from tap to Daisetta Proposed In-Service: Summer

57 Draft Construction Plan Update 1 Horizon Projects ETI 1) Carroll St Neches 138 kv Line 457 Reconductor Summer 2) Carroll St Neches 138 kv Line 528 Reconductor Summer 3) Upgrade Apollo to Porter 138 kv Summer 4) Eastgate Add 37.7 MVAR Cap Bank Summer 5) Jacinto Cleveland Upgrade line bay risers at both subs Summer 6) Ponderosa Fish Creek 138 kv - Reconductor Line Summer 7) Amelia Helbig 230 kv Reconductor Line Summer 8) Cut Cleveland into 138 kv line 871 (Jacinto Splendora) Summer 9) Winshire 69 kv Add Cap Bank Summer 10) Dobbins 138 kv Add Cap Bank Summer 11) Add 2 nd Cypress 500/138 kv Auto Summer 12) Helbig Chisholm Road 230 kv Reconductor Summer 13) WRRIP PH 3 Final: Construct new Cypress to Jacinto 230 kv line with series compensation Summer