Pacific Gas and Electric Company s 2013 Annual Progress Report

Transcription

1 March 14, 2013 Mr. David Franklin Chair, WECC Technical Studies Subcommittee Southern California Edison 1 Innovation Way Pomona, CA Mr. Enoch Davies WECC Technical Staff 155 North 400 West Salt Lake City, UT Subject: Pacific Gas and Electric Company s 2013 Annual Progress Report In accordance with WECC Progress Report Policies and Procedures, attached is Pacific Gas and Electric Company s 2013 Annual Progress Report. The new facility additions and planned system operation are in conformance with NERC Standards and WECC System Performance Criteria. If you have any questions, please call me at (415) or via at kxc5@pge.com. Sincerely, Kang-Ling Ching, TSS Rep Transmission System Planning, PG&E 1

2 A. Planned Transmission Projects 2013 Annual Progress Report to WECC Pacific Gas and Electric Company 1. Midway Gregg - Tesla 500 kv Line Project Estimated Date of Operation: 12/2019 The Tesla Midway electric transmission project is a potential project in the California Central Valley that would increase the bidirectional transfer capability of Path 15 by MW and be completed in the 2020 timeframe. The project is being designed to: (1) bring renewable energy from resources in central and southern California to northern California, (2) improve Fresno area reliability, and (3) alleviate transmission constraints on the operation of the Helms Pump Storage Plant (PSP). PG&E is presently evaluating project feasibility and may initiate the WECC project coordination and rating process per WECC s established procedures at some future date. 2. Bay Area 500kV Long Term Plan (T073) Estimated Date of Operation: 5/2019 This project was cancelled. 2

3 B. Waiver of Significant Transmission Project Status Table 1 and 2 update the planned transmission and generation projects, respectively, in PG&E service area that were presented in PG&E 2012 Annual Progress Report. These projects were granted the waiver of Significant Transmission Project status for the purpose of Project Coordination Review Process after no letter opposing the waivers was received, Table 3 and 4 list the planned transmission and generation projects, respectively, in PG&E service area requesting waiver of Significant Transmission Project status. The purposes of these projects are for serving local load, to enhance or maintain local reliability, and/or to reduce local capacity requirements. These projects are not expected to have significant impacts on the operation of the Western Interconnected System. PG&E requests waivers of the Significant Transmission Project status for the purpose of Project Coordination Review Process. Table 1 Planned Transmission Projects Waiver of Significant Transmission Project Status Granted in NO. PROJECT NAME PROJECT DESCRIPTION ID Customer proposes to transfer its interconnection point to the grid from Occidental of Elk Hills Midway-Taft 115 kv Line to its new Interconnection 230/115 kv substation, which is fed from 4 Elk Hills Substation Panoche-Helm 230kV Reconductoring Lakeville Ignacio #2 230 kv Line Project Wheeler Ridge 230/70 kv Transformer Table Mountain Rio Oso/Palermo-Colgate- Rio Oso 230 kv Tower Raises and Reconductor Cottle 230 kv Ring Bus and MPAC Project The Panoche-Helm 230 kv Line will be equipment at Panoche and Helm Re-establish a second 230 kv transmission line between Lakeville and Ignacio Substations. Install second 230/70 kv Transformer at Wheeler Ridge Substation Raise transmission towers and reconductor the Table Mountain - Rio Oso/Palermo-Colgate-Rio Oso 230 kv Lines. Build a four-breaker 230 kv ring bus arrangement at Cottle Substation and loop the substation onto the Bellota Melones 230 kv Line. Reconfigure the Bellota Melones 230 kv Line to loop in and out of the new Cottle 230 kv Ring Bus and, if 1 Facilities indicated will be removed from the 2014 annual progress report. DATE IN SERVICE T1290 T994 T1000 T1030B May-13 P May-13 3

4 Midway-Morro Bay 230 kv Reconductoring Helm-McCall 230kV Reconductoring Moraga Transformer Valley Springs 230/60 kv Transformer Herndon 230/115 kv Transformer Morro Bay 230/115 kv Transformer Tesla - Newark 230 kv Upgrade II Weber 230/60 kv Transformer Nos. 2 and 2A Replacement Pittsburg - Tesla 230 kv Reconductoring Helms PSP Special Protection Scheme Panoche-McMullin 230kV Reconductoring Panoche Substation Expansion Contra Costa Moraga 230 kv Reconductoring LeGrand-Chowchilla 115kV Reconductoring necessary, upgrade associated substation equipment. Reconductor the Midway-Morro Bay 230 kv lines with higher capacity conductors to enable renewable resources to be delivered to the grid. The Helm-McCall 230 kv Line will be equipment at McCall and Helm Replace Transformer number 1, at Moraga Substation with larger units. Install redundant transformer at Valley Springs Substation rated to handle 200 MVA or higher. Install third 230/115 kv Transformer at Herndon Substation. Install an additional 230/115 kv transformer at Morro Bay Substation Reconductor limiting sections of Tesla - Newark 230 kv No. 2 with larger capacity conductors. Replace Weber 230/60 Transformer Nos. 2 and 2a with a new transformer rated at least 300 MVA with LTC and associated equipment Reconductor the Pittsburg-Tesla 230 kv Nos. 1 and 2 Lines with larger capacity conductors. Install redundant special protection schemes at multiple substations and Helms PSP to trip pumping units offline at Helms PSP. The Helm-McCall 230 kv Line will be equipment at McCall and Helm Upgrade protection at Panoche Substation will require expansion of the substation. Reconductor the Contra Costa - Moraga 230 kv DCTL with larger capacity conductors. The Henrietta to McCall section of the Gates-McCall 230 kv Line will be equipment at Gates, Henrietta and McCall T1093A T1286 T990 N/A T1003 T1196 T670 B TBD T984 T1291 T1289 T991 T1285 Mar-13 Apr-13 Nov-13 May-13 May-17 Dec-16 Apr-15 Oct-15 Mar-14 Mar-14 Dec-14 Jun-15 Jun-15 4

5 Henrietta-McCall 230kV Reconductoring Cortina - Eagle Rock 115 kv Reconductor Newark - Ravenswood 230 kv Reconductoring McMullin-Kearney 230kV Reconductoring Embarcadero-Potrero 230 kv Project North Valley and Sierra 230 kv Line Capacity Increase Pittsburg 230/115 kv Transformer Capacity Increase Rio Oso Atlantic and Rio Oso Gold Hill 230 kv Lines Rio Oso 230/115 kv Transformers Vaca Dixon - Lakeville 230 kv Reconductoring Ashlan-Gregg and Ashlan-Herndon 230 kv Reconductor The Henrietta to McCall section of the Gates-McCall 230 kv Line will be equipment at Gates, Henrietta and McCall The project scope is to either install and additional 230/115 kv transformer at Cortina and reconductor Cortina - Eagle Rock and Cortina - Mendocino 115 kv lines with larger capacity conductors or convert the Eagle Rock - Fulton 115 kv line to 230 kv. Reconductor the Newark - Ravenswood 230 kv Line with larger conductors. The McMullin to Kearney section of the Panoche-Kearney 230 kv Line will be equipment at Kearney and McMullin Construct a new 230 kv underground cable to connect Embarcadero and Potrero substations. The project scope is to either reconductor the Rio Oso - Gold Hill, Rio Oso - Atlantic and Table Mountain - Rio Oso 230 kv lines or to construct a new 230 kv line from North Valley to Sierra systems. Install 3rd 230 / 115 Transformer at Pittsburg Substation with a rating of 420 MVA Reconductor the Rio Oso - Atlantic (18 miles) and Rio Oso - Gold Hill (29 Miles) 230 kv Line with larger conductors. Replace the Rio Oso 230/115 kv transformers (Nos. 1 and 2) with higher capacity rated units. Convert 115 kv bus to BAAH. Reconductor the Vaca Lakeville No. 1, Tulucay Vaca, and Tulucay Lakeville 230 kv Lines with larger capacity conductors. Reconductor limiting sections of Ashlan- Gregg and Ashlan-Herndon 230 kv sections with higher rated conductors. T1287 T346B T982 T1288 T1032 T687A T999 T1001 T985B T603B T1195 May-14 Feb-16 May-16 Dec-17 Jun-17 May-18 5

6 Table 2 Planned Generation Interconnection Projects Waiver of Significant Transmission Project Status Granted in NO. PROJECT NAME PROJECT DESCRIPTION ID The SMUD Solano Wind Project Phase III Generation Interconnection (the Project ) consists of forty-four (44) wind turbine Generating Units each rated at 3 MW. The maximum net output to the CAISO Controlled Grid will be 128 MW. The 1 step-up transformers are one three phase, SMUD Solano Wind 3.16 MVA, 1/34.5 kv for each wind turbine Phase III Generation Generating Unit and one three-phase, 166 Interconnection Project MVA, 34.5/230 kv for the total output of N/A the Project. The Project will be connected to the existing Sacramento Municipal Utility District (SMUD) Russell Substation 230 kv bus which is connected to PG&E s Birds Landing Switching Station 230 kv bus Calpine Russell City Energy Center Calpine Russell City Energy Center (East shore - Dumbarton) Green Ridge Wind Power Project Carrizo Plain Solar Generation Caliente Switching Station Interconnect 600 MW generation project to PG&E's East shore Substation 230 kv Bus. Convert bus. Replace transformer. Build 230 kv generation tie line. Reconductor East shore - Dumbarton 115 kv Line to interconnect 600 MW generation project to PG&E's East shore Substation 230 kv Bus. Green Ridge Power, LLC is proposing to repower the Jackson Substation via Green Ridge Wind Power Generation Interconnection Project. This project will interconnect 75.1 MW (net output) wind power-based generation facility to the PG&E transmission system. Jackson Substation is currently interconnected onto PG&E s Lone Tree-Cayetano 230 kv Line. First Solar plans to interconnect 190 MW of solar generation onto the Morro Bay - Midway 230 kv Lines High Plains Ranch II, LLC, (SunPower) proposes to interconnect 250 MW of solar generation onto PG&E's Midway-Morro Bay 230 kv Lines by December This will require construction of a new switching station to interconnect this project onto the Midway-Morro Bay 230 kv Lines. Prior to December 2013, High Plains Ranch II will temporarily interconnect 140 MW of solar generation on the Midway- Morro Bay 230 kv No. 1 Line by December 2011, which will require construction of a temporary tap connection. DATE IN SERVICE P P P N/A P Dec-13 Permanent connection 12/31/2013 6

7 7 Montezuma II Wind Generation Interconnection Project 8 Solar Switching Station NextEra Energy Resources, LLC (NextEra), proposed to interconnect its Montezuma II Wind Project (The Project) to the California Independent System Operator Corporation ( CAISO ) Controlled Grid. The Project consists of 34 Siemens wind turbine generating units each rated at 2.3 MW with total output of 78.2 MW. This project proposes to interconnect to a new ring bus at the existing Montezuma Project (High Winds III) Substation Topaz Solar Farms, LLC, plans to interconnect 150 MW of solar generation onto the Morro Bay - Midway 230 kv Lines. P N/A 7

8 Table 3 Planned Transmission Projects Requesting Waiver of Significant Transmission Project Status NO. PROJECT NAME PROJECT DESCRIPTION ID 261 North Dublin 230kV Install one 50 MVAr shunt reactor on the Shunt Reactor North Dublin-Vineyard 230 kv Line T1468 Install a redundant SPS to improve 272 Contra Costa Moraga reliability and resolve overloads on Contra SPS Installation Costa-Moraga 230 kv Transmission Lines Nos. 1 and Arco Transformer Installation Project Midway-Kern PP 230 kv Line Nos. 1, 3 and 4 Project Tulucay 230/60 kv Transformer No.1 Moraga - Castro Valley 230 kv Line Capacity Increase Project Kearney 230/70 kv Transformer 2 Fulton 230/115 kv Transformer Moraga Transformer Rio Oso Atlantic 230 kv Line San Mateo Synchronous Condensor Replacement Wheeler Ridge Voltage Support Rio Oso Area 230 kv Voltage Support Kern PP 230 kv Area Reinforcement Project Install a second 230/70 kv transformer (No. 1), a 230 kv circuit breaker and upgrade the 70 kv bus to connect the new transformer Replace limiting components at Kern PP and Midway Substations, to achieve full capacity on the Midway-Kern 230 kv Line Nos. 1, 3 and 4 This project proposes to replace Tulucay Circuit Breaker No. 62 and all of its associated switches. Any other associated terminal equipment will also be replaced as necessary Upgrade the limiting substation equipment (jumper conductors and wave traps) at Moraga and Castro Valley substations Install second 230/70 kv Transformer at Kearney Substation, install 4 element 230 kv ring, expand 70 kv bus and reterminate lines This project proposes to install a 230/115 kv transformer at Fulton Substation Replace Transformer number 2, 230/115 kv at Moraga Substation with larger unit. Construct a second Rio Oso Atlantic 230 kv Line. Install reactive support device to replace old synchronous condensers Install three 75 MVAR steps of mechanically switched capacitors on the Wheeler Ridge 230 kv bus, expand the 230 kv bus as necessary reconductor 0.5 miles of the Wheeler Ridge-Lakeview 70 kv line and transfer Copus from the Old River-Copus 70 kv line to the Wheeler Ridge-Lakeview 70 kv line. Install a new Static Var Compensator (SVC) at Rio Oso Substation and a new Shunt Capacitor at Atlantic Substation. Convert Kern PP 230 kv double bus single breaker arrangement to breaker and a half Replace limiting equipment on Kern PP 230/115 kv transformer No. 4 as necessary to achieve full transformer T1260 T1107A DATE IN SERVICE Apr-13 Dec-13 Dec-13 May-16 Jun-16 May-17 Dec-17 Dec-18 8

9 431 Borden 230 kv Voltage Support rating Install a 230/115 kv Transformer Special Protection Scheme at Kern 115 kv to mitigate overloads of Kern PP Transformer Nos. 3, 4, and 5 This project proposes to loop the Wilson- Gregg 230 kv Line into Borden Substation (Borden) and install 200 MVARs of mechanically switched capacitors on the Borden 230 kv bus. May-20 Table 4 Planned Generation Interconnection Projects Requesting Waiver of Significant Transmission Project Status NO. PROJECT NAME PROJECT DESCRIPTION ID DATE IN SERVICE No planned generation interconnection project is 200MW or greater. 9