CPUC TRANSMISSION PROJECTS AND CONCEPTS-- SCE TERRITORY Third Quarter 2011

Transcription

1 LOCATION CPUC TRANSMISSION PROJECTS AND CONCEPTS-- SCE TERRITORY Third Quarter 2011 PROJECT DESCRIPTION Segment #1 : Construct a new 26.5 mile 500kV transmission line from Santa Clarita to Lancaster (between existing Pardee & Antelope Stations) kv/230 kv 4928 Operational 10/31/ 15 - Antelope (formerly known as Tehachapi) Project 18 N/A Generator Interconnection Kern, Los Angeles Counties Kern, Los Angeles, Orange,, Riverside Counties Segment #2 - Construct a new 21.0 miles 500kV transmission line between Antelope and Vincent Station and construct a new 220 kv transmission line and modifications at the Vincent substation to Lancaster kv/230 kv 5453 Operational 11/30/ Yes Yes 2007 Segment #3A - Construct 25.6 miles of 500 kv and 220 kv transmission lines connecting SCE's Antelope Substation in Lancaster to a new substation kv/230 kv 6434 Operational 12/31/ west of Mojave in Kern. Segment #3B- Construct 9.6 miles of 220 kv transmission lines from Mojave to east of Tehachapi kv/230 kv 6434 Construction 12/1/2013 Segment #3C- Operation of Segment 2 and 3 at 500kV N/A 500 kv 7014 Construction 11/1/2013 Generator Interconnection (See Details on the TAB) see generation tab $1 Bllion Reliability/Generator Connection- To minimize voltage problems, increase transmission capability and improve system performance in the Tehachapi area. Petition to modify cost approved 9/24/ kV switchracks at Whirlwind Sub, Antelope Sub, and Windhub Sub to be completed in 2012 in coordination with TRTP Segments #4, #5, and # Devers-Mirage 115 kv System Split and Mirage 3rd "A" Bank Riverside The existing Devers 115 kv subtransmission system will be split into two separate subtransmission systems the Devers 115 kv subtransmission system and the Mirage 115 kv subtransmission system. The project requires the addition of a 3rd "A" bank at Mirage, various subtranmission line arrangements and breaker replacements to support the subtransmission rearrangements kv 5360 Yes 2004 Construction Phase 1: 6/1/2011/ Phase 2: 12/31/2012 $10-$50 Reliability - Mitigate base case line overloads under peak load conditions and high import from IID area Project Split into two phases Devers-Mirage #3 230 kv Line Riverside Construct a new Devers-Mirage 230kV T/L kv 6415 No No No Conceptual 6/1/2019 $10-$ Devers-Coachella Valley 230 kv Loop-In Riverside Loop existing Devers-Coachella Valley 230 kv line into Mirage kv 6414 Yes San Joaquin Cross Valley Loop Tulare Construction of a new 18.5 mile double-circuit 230 kv transmission line that would connect Rector Substation to an existing 230 kv line from SCE s Big Creek hydroelectric facilities in the Sierra Nevada Mountains. Loop Big Creek 3-Springville 230 kv line into Rector kv 4956 Yes 2004 FEIR (10/9/) Construction 12/31/2012 <$10 Engr/ Design 3/31/2014 $101-$200 Reliability - Mitigate potential line overloads and voltage criteria violations in the Mirage area Reliability - Mitigate potential voltage collapse in Palm Spring/Rancho Mirage area under contingency. Reliability - Mitigate reliability problems (transient and post transient) in the San Joaquin Valley area under contingency conditions 29 N/A Devers - Colorado River Substation (DCRS) (formerly Devers-Palo Verde 500 kv T/L #2 (DPV2)) Riverside Construct the California portion of DCR (Devers-Colorado River): a new 113 mile 500 kv line from the new Colorado River Switchyard to SCE's existing Devers Substation. Construction the Devers Valley No. 2 line, a new 42 mile 500 kv transmission paralleling an existing line connecting SCE's Devers Substation to SCE's existing Valley Substation in Romoland California. Also, construct other reactive support equipment MVA/ 500 kv 4847 Yes CPCN with Petition to Modify approved November Licensing/ Engr and Design 9/1/2013 >$500 Interconnection of renewable generation & 2007 New San Joaquin Valley 230/66 kv Sub Tulare Construct a new 560 MVA 230/66 kv San Joaquin Substation, and install up to 250 MVAR 230 kv SVC MVA/250 MVAR 6091 No No No Conceptual 6/1/2019 <$1 load growth in Rector area East Kern Wind Resource Area 66kV (formerly Antelope Bailey Windhub) Los Angeles Reconfigure Antelope-Bailey 66kV system into two separate systems. The northern system will be served radially from Windhub substation. The southern system will remain parallel to the 230 kv system at Antelope and Bailey and will retain the label of the Antelope-Bailey 66 kv system MVA 6685 Yes No Engr / Design 12/31/2013 $51 - $100 Reliability - Provide needed bank capacity to relieve base case overload This Project was Split into two separate projects the pin for this project (6445) now belongs to the new project. The EKWRA project is in the process of determining whether licensing is required. If licensing is required, the planned in service date will be updated Cassini (formerly Antelope Valley- Valermo) New 230/66 kv Substation and related T/L Los Angeles Develop 560 MVA 230/66 kv Substation and related transmission (construct 230 kv lines to new sub) and subtransmission facilities (5 new 66 kv lines about 15 mile each) in east of Antelope 230/66 kv Sub MVA 6045 Yes No No Conceptual 6/3/2019 $201-$300 load growth in Palmdale/Lancaster area Alberhill 500/115 kv Substation Riverside Develop a new 1120 MVA Alberhill 500/115 kv Substation and associated T/Ls.Construct a new 500/115 kv transmission substation (Alberhill Substation, connecting SCE s existing Serrano-Valley 500 kv transmission line into the new Alberhill Substation with two new 500 kv line segments. Construct a new 115 kv subtransmission line and modifications to existing 115 kv subtransmission lines MVA 6092 Yes No Licensing 6/1/2014 $301-$400 load growth in western Riverside Upon project completion, electricity from five distribution substations (Fogarty, Elsinore, Ivyglen, Newcomb, and Skylark substations) will be transferred to the new Alberhill Substation to form the new Alberhill System HDPP SPS McGen SPS Kern Victor-Savage #3 115 kv Line Existing Portion of the HDPP RAS remains unchanged (Monitoring flows on the Lugo-Victor 220 kv No. 1 & 2 lines) Modification: Drop Load at Victor Substation- Monitor the flows on the Victor A-banks, HDPP plant output & Kramer-Victor 115 kv No.1 & 2 lines to determine the net Victor load minus HDPP output. Install SPS to McGen under N-1 (Inyokern-McGen-Searles 115 kv line 1 or 2) Re-conductor the Victor-Savage No.1 T/L (approximately 7 miles) and build the New Victor-Savage No.3 T/L. The Victor-Savage No.3 T/L consists of constructing approximately 7.0 Miles of new overhead and 2000 feet of new underground 115-kV T/L. N/A 230 kv 6468 Yes 2006 Exempt On Hold 6/1/2012 <$1 Reliability - Mitigate potential N-2 voltage collapse during peak load conditions N/A 115 kv No ID Yes Non-ISO Exempt On Hold 12/1/ <$10 Reliability - Mitigate N-1 line overloads Project is on hold. No update information available kv 6448 Yes Non-ISO Exempt Engr / Design 6/1/2012 $10-$50 Reliability - Mitigate line overloads under base case and N-1 conditions BC3-BC8 SPS Fresno Incorporated into Project No. 90 ( PIN 7097) Wildlife (formerly Jurupa) 230kV Sub Riverside Develop a 560 MVA Wilderness 230 kv Substation for Riverside. Loop the existing Mira Loma-Vista #1 line and construct about 7 miles of double circuit to Wilderness 230kV MVA 5450 Yes 2006 No Licensing 7/1/2015 $51 - $100 Load Growth - Provide a method of service to a new substation serving City of Riverside Project name is Wildlife. Wilderness is the Riverside portion of the 230 kv Station El Casco 230/115 kv Sub Riverside/ Counties Provide a method of service to a new El Casco 560 MVA 230/115 kv Substation by looping the existing Devers- #2 into El Casco MVA 5075 Yes Construction Phase 1: 5/11/2011/ Phase 2: 2/1/2012 $101-$200 Load Growth - Provide a method of service to a new 560 MVA 230/66 kv Substation Formerly known as Oak Valley 53 N/A West of Devers (WOD) Upgrade Project Riverside/ Counties Acton Substation Loop-in Los Angeles Upgrade five 230 kv lines on the west side of Devers 230kV substation to 2B-1590 ACSR conductor. Provide two line service to Acton 66/12 kv Sub by construct about 4 miles of new 66 kv line kv 6420 Yes No Under Development 1/1/2018 $401-$500 To Interconnect and deliver energy from renewable resources located in the East of Devers Area kv 6444 Yes 2006 No Construction 12/31/2011 <$10 Reliability - Improve reliability service to Action Sub The Morongo Relocation Project has been merged into the WOD Upgrade Project Under PIN rd A-Bank and Rebuild of the 115 kv Switch Rack at Victor Substation ( Phase 1 & Phase 2) Install a 3rd /115 kv transformer bank at Victor. Replace existing bus structure to improve station flexibility for operation, protection and future expansion. N/A 115 kv 280 MVA 6477 Yes 2006 Exempt Construction Phase 1: 07/01/2011/ Phase 2: 12/31/2012 $10-$50 Reliability - Eliminate T-1 overloads Reliability - Improve station flexibility for operation, protection and future expansion. This Project was updated to include the rebuild of the 115 kv switchrack at Victor. Also, It was split up into two phases. Phase 1 - includes the #3 230/115 kv bank and part of the 115 kv switchrack rebuild. Phase 2 - includes the rest of the 115 kv switchrack rebuild. Project Cost inlcudes both Phase 1 and Phase 2. Project No. 67 has been combined with Project No. 55 PIN of 7

2 Del Sur 66 kv Terminal Upgrades Los Angeles Upgrade 66 kv terminal equipment (disc, CBs, jumpers) at Del Sur Sub (Del Sur-Rite Aid-Lancaster 66 kv) N/A 66 kv No ID Yes 2007 Exempt On Hold 6/1/2014 <$1 Reliability - Mitigate N-1 line overloads Upgrades where added to interconnection project and other projects. Since it was an CAISO approved project, decided to not remove project just in case interconnection project drop out. 2 of 7

3 Segment 4 - Construct two new 220 kv transmission lines traveling approximately 4 miles over new right-of-way (ROW) from the Drycreekwind Substation (formerly referred to as Cottonwind Substation ) to the proposed new Whirlwind Substation. Construct a new 500 kv transmission line, initially energized to 220 kv, traveling approximately 16 miles over expanded ROW from the proposed new Whirlwind Substation to the existing Antelope Substation. Construct new 500 kv transmission lines to loop existing Midway- Vincent No kv line in and out of proposed Whirlwind (part of Segment 9) substation kv/230 kv /31/ Tehachapi Project Kern, Los Angeles, San Bernardino Counties Segment 5 - Rebuild approximately 18 miles of the existing Antelope Vincent 220 kv T/L and the existing Antelope Mesa 220 kv T/L to a second single Antelope-Vincent 500 kv T/L over existing ROW between the existing Antelope Substation and the existing Vincent Substation. Segment 6 - Rebuild approximately 32 miles of existing 220 kv transmission line to 500 kv standards from existing Vincent Substation to the southern boundary of the Angeles National Forest (ANF). This segment includes the rebuild of approximately 27 miles of the existing Antelope Mesa 220 kv T/L and approximately 5 miles of the existing Rio Hondo Vincent 220 kv No. 2 - T/L. Segment 7- Rebuild approximately 16 miles of existing 220 kv transmission line to 500 kv standards from the southern boundary of the ANF to the existing Mesa Substation. This segment would replace the existing Antelope Mesa 220 kv T/L.. Segment 8 - Rebuild approximately 33 miles of existing 220 kv transmission line to 500 kv standards from a point approximately 2 miles east of the existing Mesa Substation (the San Gabriel Junction ) to the existing Mira Loma Substation. This segment would also include the rebuild of approximately 7 miles of the existing Chino Mira Loma No. 1 line from single-circuit to double-circuit 220 kv structures. Segment 9 -Construct Whirlwind Substation, a new 500/220 kv substation located approximately 4 to 5 miles south of the Drycreekwind Substation in Kern in the TWRA. Upgrade of the existing Antelope, Vincent, Mesa, Gould, and Mira Loma Substations to accommodate new transmission line construction and system compensation elements kv /31/ kv /31/ kv /31/ Yes Construction CSRTP kv /31/2014 N/A 500/ 230 kv /31/2013 <$5 B Comply with the state-mandated s Portfolio Standard (RPS) (i.e. 20 percent renewable by year per California Senate Bill 107) in an orderly, rational and cost-effective manner, while also considering the need for maintaining reliable electric service during the upgrade and /or construction of new facilities. Integrate planned renewable generation resources, including those for which SCE has executed a Power Purchase Agreement (PPA) totaling approximately 1,790 MW, in a manner that minimizes potential environmental impacts and impacts to existing and planned residences, where feasible, by maximizing the use of existing transmission corridors with facilities identified through the planning process of the California Independent System Operator (CAISO) South regional plan for 2006 in order to: maximize the use of existing, previously Planned in-service dates are subject to change disturbed T/L right of way to minimize effect on previously based on timing of biological opinion. undisturbed land and resources; select route and tower locations with the lowest potential for environmental impacts while still meeting project objectives; and select the shortest feasible route that minimizes environmenta impacts and project costs. Meet the transmission reliability needs of SCE-owned and CAISO-controlled tranmission grid in the Antelope Valley resulting from projected load growth in this area. Increase transmission capability from SCE's Lugo Substation located in Hesperia) to the Mira Loma area (South of Lugo), which is an existing transmission "bottleneck" that has been an ongoing source of reliability concern for the Los Angeles Basin and that will worsen with the inclusion of additional generation resources in the Tehachapi area. Segment 10 - Construct a new 500 kv transmission line traveling approximately 17 miles over new ROW between the Windhub Substation and the proposed new Whirlwind Substation kv /31/2012 Segment 11 - Rebuild approximately 19 miles of existing 220 kv transmission line to 500 kv standards between the existing Vincent and Gould Substations. This segment would also include the addition of a new 220 kv circuit on the vacant side of the existing double-circuit structures of the Eagle Rock Mesa 220 kv T/L between the existing Gould Substation and the existing Mesa Substation kv /1/ N/A North of Magunden Redundant BCT Upgrade Valley - Serrano No kv T/L Kern Los Angeles, Riverside Installation of redundant BCTs coordinated with the ongoing Big Creek RAS upgrade project is required for redundancy, reliability and operational flexibility. N/A 230 kv 6154 Yes Non-ISO Exempt Construction 12/31/2011 <$10 Reliability - Improve reliability of the SPS Construct a second Valley - Serrano No kV T/L kv 6418 No No No Conceptual 6/3/ Reliability - Provide load service capacity Lugo Sub Install new 500kV CBs for AA Banks Install CBs on existing 1AA and 2AA banks which are currently directly tied to bus, to meeting SCE reliability criteria and provide operational flexibility N/A 500 kv 6791 Yes 2007 Exempt Construction 12/31/2012 $10-$50 Reliability - to meet SCE substation reliability criteria and provide operational flexibility Upgrade Barre - Lewis 230kV T/L Orange Upgrade Barre - Lewis 230kV T/L to relieve contingency overload kv No ID No No No Conceptual 6/1/ Reliability - to meet N-1, N-2 NERC Reliability Criteria New Auld 500/115 kv Substation and Lines Riverside Develop a new 1120 MVA Auld 500/115 kv Substation, Vellye-Auld 500kV T/Ls Frazier Park Dynamic Voltage Support Los Angeles Install a 10MVAR Dynamic VAR Resource at Frazier Park substation. N/A 10 MVAR No ID Yes North of Magunden Long Term Plan Fresno, Tulare Master Plan to build transmission lines and substations to serve load in San Joaquin Valley area MVA 6678 No No No Conceptual 6/1/2030 >$ load growth in western Riverside Exempt On Hold 6/1/ <$10 Reliability - Mitigate voltage criteria for N MVA 5455 No No No Conceptual 6/1/2019 $3 Billion Load service, reliability - mitigate reliability criteria violations for N-0, N-1,N-2 Co- Sponsored Project between Interconnection Planning and Distribution Engineering. The Magunden - Rector 230kV line Project has been canceled and is being evaluated as a part North of Magunden Long Tern Plan. 75 N/A Mountainview Generating Station SCE Substation Separation Project Separate Substation from Mountainview Generating Station. SCE to remove, relocate and/or replace SCE Grid Facilities, currently located within Mountainview Generating Station.Extend the switchrack to accommodate one additional line position. Reconfiguration of the Vista system to accommodate removal of the Switchrack, and to loop the existing -Homart- Purewater Line into Purewater Substation. 115 kv Switchrack and Sectionalizing Circuit Breaker Removal N/A 230/ & 230/66kV 6744 Yes Exempt Exempt Operational 8/18/ <$10 Transfer of Station Control at request of Plant owner (Mountainview Power) Lugo 500kV Substation Expansion and Series Capacitor Replacement Expand Lugo Substation to accommodate a future 3AA bank and additional Lines, and replace exsisisting Lugo Series Capacitor N/A 500 kv 6726 Yes Yes Exempt Operational 12/31/ $51 - $100 The 500kV series capacitors on the Lugo Eldorado 500kV and Lugo-Mohave 500kV lines, located at Lugo substation, are of a High Loss design and contain PCBs. This project will decreasing losses and eliminating the potential for environmental exposure. In addition this project will expand Lugo Substation to plan for a future 3AA bank and additional 500kV lines into Lugo Substation Antelope 66 kv bus split Los Angeles Split the 66 kv at Antelope to manage Short Circuit Duty kv 6445 Yes No No Conceptual 6/1/ Rector SVS Expansion Tulare Nuevo 500/115 kv Substation Riverside Expand Rector Static VAR System (SVS) by adding two 79.2MVAR 230 kv Shunt Capacitor Banks at Rector Bus and SVS control points to maintain minimum voltages at Rector 230 kv Develop a new 1120 MVA Nuevo 500/115 kv Substation, Auld - Nuevo 500 kv T/L N/A MVAR 6792 Yes Appoved To serve load growth the 4th bank at Antelope Substation (transformer bank 3A) needs to be energized on the 66kV side. In order to manage short circuit duty the 66 kv Antelope bus will split into two sections. Exempt Construction 12/31/2011 <$10 Reliability- to provide dynamic stability for system disturbance MVA No ID No No No Conceptual 6/1/ Allessandro 230/115 kv Substation Riverside Develop a new 230/115 kv Substation, Vista - Alessandro 203 kv T/L - - No ID No No No Conceptual 6/1/ New Mesa 500 kv Los Angeles Develop a new 500/230 kv Substation equipped with 2x1120 MVA transformers MVA 3397 No No No Conceptual 6/1/ Reliability - Part of Long Range Plan to serve load in the San Jacinto Region Reliability - Part of Long Range Plan to serve load in the San Jacinto Region Reliability- Project needed as a part of long term plan for Once through Cooling Generator Retirement. Previously part of the 66kV Antelope-Bailey- Windhub System Reconfiguration Project. Co- Sponsored Project between Interconnection Planning and Distribtution Engineering. Co- Sponsored Project between Interconnection Planning and Distribtution Engineering. 3 of 7

4 New Lighthipe 500 kv Los Angeles Develop a new 500/230 kv Substation equipped with 2x1120 MVA transformers MVA 3398 No No No Conceptual 6/1/ Reliability- Project needed as a part of long term plan for Once through Cooling Generator Retirement. 4 of 7

5 84 N/A Eldorado-Ivanpah Project (EITP) Construct a new 220/115 kv Ivanpah substation near Primm, Nevada and an upgrade of a 35-miles double-circuit 220 kilovolt transmission line, connecting the new Ivanpah Substation to SCE s Eldorado Substation, near Boulder City, Nevada. Upgrades at Eldorado Substation to support the connection of new transmission lines kv/115 kv 6551 Yes 3 LGIAs Executed CPCN approved Licensing 7/31/2013 $301-$400 Comply with the state-mandated s Portfolio Standard (RPS) (i.e. 20 percent renewable by year per California Senate Bill 107) in an orderly, rational and cost-effective manner, while also considering the need for maintaining reliable electric service during the upgrade and /or construction of new facilities. Integrate planned renewable generation resources, including up to 1,400 MW from the Ivanpah Dry Lake Area with a Power Purchase Agreement (PPA) executed by a CPUC jurisdictional Private Owners (PTO), in a manner that minimizes potential environmental impacts and impacts to existing and planned residences, where feasible, by maximizing the use of existing corridors in order to: maximize the use of existing, previously disturbed transmission line right-of-way (ROW) to minimize effect on previously undisturbed land and resources; select route and tower locations with the lowest potential for environmental impacts while still meeting porposed project objectives; select the shortest feasible route that minimizes environmental impacts and propsed project costs. Interconnect an Support the State of California Greenhouse Gas reduction program 85 N/A RedBluff 220/ Substation Desert Center, Riverside Construct a new 500/230 kv collector substation (Red Bluff) to interconnect new renewable generation projects in the Desert Center Area which are also seeking ARRA Funding MVA 6929/ 7059/ 7075 Yes No No Licensing 12/30/2013 $201-$300 Interconnection of renewable generation PIN 7075 ( Loop-In) 86 N/A 87 N/A Colorado River 230kV Substation Expansion Water Valley (Formerly Lockhart ) Substation Riverside 88 N/A Jasper Substation Expand the existing station, presently configured as a 500kV Switchyard, to a 1120MVA 500/ Substation by installing one 1120MVA 500/ Transformer Banks with corresponding 500kV and Bank Positions and installing a new Switchyard. Construct new Lockhart Substation to interconnect renewable generation projects Construct new Jasper Substation to interconnect renewable generation projects MVA 7076/ 7050/ 7049 Yes No No Licensing 11/1/2013 $101-$200 Interconnection of renewable generation kv 6960 Yes No No Licensing 1/1/2013 $51 - $100 Interconnection of renewable generation kv 6902 Yes No No Under Development 12/31/2013 $10-$50 Interconnection of renewable generation 89 BC/SJV RAS Expansion:Insufficient Load Shedding Mitigation Tulare Modify existing RAS by arming additional Reactor load N/A 230 kv 7104 Yes Pending Exempt Engr / Design 6/1/2012 <1 Reliability - Mitigate thermal overloads by arming additional Reactor load to existing Big Breek / San Joaquin Valley RAS. 90 BC/SJV RAS Expansion: Monitoring the Big Creek 3-Big Creek kv Line with Overload Detection Relays Fresno Modify existing RAS to monitor Big Creek 8. N/A 230 KV 7097 Yes 2006 Exempt Engr / Design 4/1/2012 <1 91 Path 26 Existing RAS Modification Los Angeles Modify existing RAS to include all N-2 combinations N/A 500 kv - Yes Pending Exempt Operational 1/31/ Palmdale Line-Loss Tripping Scheme Los Angeles Install new RAS to meet NERC C3 standard N/A 66 KV 7109 Yes Pending Exempt Engr / Design 8/15/2011 <1 Reliability - Mitigate thermal overloads due to hight hydro output, modify existing Big Creek / San Joaquin Valley RAS to monitor Big Creek 8. Reliability - Include all N-2 combinations of Path 26 as part of existing Path 26 RAS Reliability - Mitigate C3 thermal overloads, use tripping scheme to drop load after loss of both lines 93 Lancaster Overload Tripping Scheme - Engineering, Design and Procurement Los Angeles Install new RAS to meet NERC C3 and C5 standard N/A 66 kv 7110 Yes Pending Exempt Engr / Design 8/15/2011 <1 Reliabiity - Mitigate thermal overloads. The C3 contingency has 1/2 hr to drop load after loss of 2nd line. The C5 contingency will use tripping scheme to drop load after loss of both lines. 94 Garnet OP & SPS Riverside Cancelled 95 N/A Lugo-Pisgah Phase II (Formerly Sterling Energy System (SES) Upgrades) New Pisgah 500kV Sub, New Lugo- Pisgah 500kV T/L, Loop existing Eldorado-Lugo 500kV T/L Hesperia, Lugo-Pisgah 500 kv T/L Upgrade. Construct approximately 65 miles of new 500 kv T/L from Lugo to Pisgah. Loop existing Eldorado-Lugo 500 kv T/L into Pisgah 500kV Substation. Expand the existing Pisgah 220 kv Substation by one new double-bus 220 kv to connect the new SES Solar One generation tie-line. Expand the existing Pisgah Substation to a 500/220 kv Substation designed for ultimate four 500/220 kv transformer banks (AA-Banks) Extend the existing Lugo 500 kv switchrack to provide for a new 500 kv position to terminate new Lugo-Pisgah No kv T/L kv 7018 Yes Yes No On Hold 6/1/2017 >$500 System Impact and Facility studies performed have identified the need for Interconnection Facilities and Reliability Network Upgrades necessary to reliably interconnect and integrate the SES Solar One 850 MW Project. SES Solar One has executed a Power Purchase Agreement for this project with SCE. These facilities will be constructed in two phases to facilitate early interconnection of up to 275 MW before completion of the Reliability Network Upgrades required to support the full project development. Project is on-hold as Calico Solar has suspended LGIA and has been acquired by K-road Sun, LLC. 96 N/A Coolwater-Lugo (South of Kramer) 220 kv T/L Hesperia, Build 63 miles of line between SCE's existing Coolwater 220/ Substation and Lugo 500/ Substation (47 miles of which is doublecircuit and 16 miles of which is single circuit 500kV construction initially operated at ) kv 7091 Yes Yes No Under Development 4/14/2018 >$500 CPUC California Public Utility Commission RAS/SPS "Remedial Action Scheme": load and /or generation shedding to prevent system collapse ID Utility -assigned Identification Number CPCN Certificate of Public Convenience and Necessity ISO California Independent System Operator PTC Permit to Construct I : CPUC Order Instituting Investigation No (AB970) Exempt CPUC CEQA approval not required Network upgrades to provide up to 1,000MW of transmission capacity for multiple generation projects in the CAISO interconnection process and also incremental transfer capability for other generation projects in the greater Coolwater-Lugo Mohave Desert region. This project has been identified by RETI and the CA Planning Grouop as an important path for transfer of location-constrained renewable generation resources in the Mojave Desert and southern California. Delivery Network Upgrades required to support the full project development for Abengoa Mohave Solar's new interconnection at Water Valley (formerly Lockhart) Substation. 5 of 7

6 CPUC TRANSMISSION PROJECTS -- SCE TERRITORY Projects - Third Quarter 2011 NO. RATING ID IN CONSTRUCTION STATUS UTILITY ISO CPUC SERVICE NRG El Segundo Los Angeles Interconnect a 580 MW Combined Cycle Generating Facility to an existing position within SCE's El Segundo Substation. Replace wave traps at Hinson, La Fresa and Mesa Substations. Replace four circuit breakers with 63kA rated units at at El Nido Substation. Install communication equipment and 580 MW TOT041 Yes Yes Exempt Construction Sep relays at Chevmain, El Nido, El Segundo, La Fresa, and La Cienega Substations as required for the Special Protection Systems. Install MEER building/relays, circuit breakers and disconnects at El Segundo Substation EME Walnut Creek Los Angeles Interconnect a 500 MW Simple Cycle Generating Facility to SCE's Walnut Substation. Install a new line position consisting of two circuit breakers and four disconnect switches. Install five sets of transient recovery voltage capacitors at Barre Substation. Install communication equipment. 500 MW TOT135 Yes Yes Yes Construction Aug CPV Sentinel Riverside Interconnect a 850 MW Simple Cycle Generating Facility to SCE's Devers Substation. Relocate exisiting line terminations within Devers Substation and install new line position to accommodate termination of the new generation tie line; install power system controls and telecommunications; install special protection systems. 850 MW TOT032 Yes Yes Yes Construction - Project no longer under suspension Jan Vulcan-Green Bordrs Geothermal Hawthorne, Nevada Interconnect a 62 MW Geothermal Generating Facility to SCE's Control Substation. Upgrade phase shifter at Inyo Substation; install power system controls and telecommunications; install special protection systems. 62 MW TOT127 Yes Yes Filing Pending LGIA Accepted and Suspended at FERC pending litigation outcome 60 months after a final FERC Order 18.9 CPC West Kern Interconnect a 600 MW Wind Generating Facility to SCE's Windhub Substation; TRTP Segment 3A network upgrades apply. 600 MW TOT163 Yes Yes Yes - part of SCE's Tehachapi SCE Facilities Complete Phase I - In Service Phase II - In Service Phase III - Dec-11 Calico Solar Interconnect a 850 MW Solar Generating Facility to SCE's Pisgah Substation (initial 275 MW connected to the existing Pisgah Substation until the new Pisgah substation can be constructed); Construct new 500/ Pisgah Substation; Remove one of the exisiting Lugo-Pisgah 220 kv line and replace with a new Lugo-Pisgah 500kV line; loop-in the existing Eldorado-Lugo 500kV line into the new 500/ Pisgah Substation. 850 MW TOT131 Yes Yes CPCN preparation Currently suspended at the request of the Applicant in accordance with the Large Generator Interconnection Agreement TBD when Applicant ends the project suspension DPT1 Interconnect a 100 MW Solar Generating Facility to SCE's Ivanpah 220/ Substation; Construct new 220/ Ivanpah Substation; Remove the exisiting Eldorado-Ivanpah line; Replace with a new Eldorado-Ivanpah line. 100 MW TOT180 Yes Yes CPCN filed under SCE's Eldorado- Ivanpah Project (EITP) Engineering & Design Jul CPC East Kern Interconnect a 550 MW Wind Generating Facility to SCE's Windhub Substation; TRTP Segment 3A network upgrades apply. 550 MW TOT162 Yes Yes Yes - part of the Tehachapi SCE Facilities Complete Phase I (270 MW) -In Service Phase II (280 MW)- Dec-11 Mountain View IV Riverside Interconnect a 49 MW Wind Generating Facility via a new substation; upgrade line protection at SCE's Garnet Substation; upgrade telecommunication facilities and RTU at SCE's Devers Substation. 49 MW WDT213 Yes Pending Final Review Expected to be Exempt Construction Nov DPT2 Interconnect a 114 MW Solar Generating Facility to SCE's Ivanpah 220/ Substation by terminating the DPT2 gentie line in a new position at Ivanpah Substation. Install telecommunications facilities to support line protection and the special protection system; install RTU. 114 MW TOT210 Yes Yes CPCN filed under SCE's Eldorado- Ivanpah Project (EITP) Engineering & Design Jul Ivanpah 3 Interconnect a 200 MW Solar Generating Facility to SCE's Ivanpah 220/ Substation by terminating the Ivanpah 3 gentie line in a new position at Ivanpah Substation. Install telecommunications facilities to support line protection and the special protection system, install RTU; Install two 220/ transformer banks with associated bank positions and one transmission line position to terminate the new Eldorado line; extend the Eldorado buses two positions to the west and install one double breaker line position to terminate the new Ivanpah line; remove Eldorado 220/ transformer bank and related equipment. 200 MW TOT242 Yes Yes CPCN filed under SCE's Eldorado- Ivanpah Project (EITP) Engineering & Design Aug-13 Desert Sunlight PVI and PVII Riverside Interconnect a 550 MW Solar Generating Facility to SCE's Redbluff 500/ Substation; Construct new 500/ Redbluff Substation; Loop the Colorado Rivers-Devers No kV line in and out of Redbluff Substation; terminate the Desert Sunlight gentie line in a new position at Redbluff Substation. Install telecommunications facilities to support line protection; install RTU. 550 MW TOT198 TOT199 Yes Yes PTC Filed Engineering & Design Dec

7 18.17 Coram Brodie Wind Kern Interconnect a 102 MW Wind Generating Facility to SCE's Windhub 66kV Substation; terminate the Coram Brodie Wind 66kV gentie line in a new position at Windhub Substation. Install telecommunications facilities to support line protection; install RTU. Advance SCE's EKWRA Project to support the inservice date requested by the interconnection customer. TRTP network upgrades apply. 102 MW 66kV TOT146 TOT153 Yes Yes Yes - part of the Tehachapi Construction Dec Manzana Wind Kern Interconnect a 300 MW Wind Generating Facility to SCE's Whirlwind Substation; terminate the Manzana Wind gentie line in a new position at Whirlwind Substation. Install telecommunications facilities to support line protection; install RTU. TRTP network upgrades apply. 300 MW TOT108 Yes Yes Yes - part of the Tehachapi Engineering & Design May-12 Granite Wind Interconnect a 60 MW Wind Generating Facility to SCE's new Jasper Substation; Construct a new Jasper Substation; terminate the Granite Wind gentie line at Jasper Substation; loop the existing Lugo-Pisgah No. 1 line into Jasper Substation (temporary); loop the proposed Cool Water- Lugo line into Jasper Substation. Install telecommunications facilities at Jasper Substation to support line protection; upgrade line protection at Pisgah and Lugo Substations; install RTU. Install alternative source of station light and power. 60 MW TOT183 Yes Yes PTC Preparation Engineering & Design Nov Blythe Solar Power Riverside Interconnect a 1000 MW Solar Generating Facility to SCE's expanded Colorado River 500/ Substation; Expand the Colorado River 500kV Substation to include a new switchayard and transformation; terminate the two (2) Blythe Solar Power gentie lines at Colorado River Substation; loop the proposed Devers-Colorado River line into the proposed Red Bluff 500/ Substation; upgrade MIra Loma-Vista line drop at Vista Substation; install special protection system; upgrade the four (4) West of Devers lines. Install telecommunications facilities at Colorado River Sustation to support line protection and special protection system; install RTU MW TOT276 Yes Yes PTC Filed Engineering & Design Phase I (500 MW) - Nov-13 Phase II (500 MW)- May Palen Solar II Riverside Interconnect a 500 MW Solar Generating Facility to SCE's proposed Red Bluff 500/ Substation; terminate the Palen Solar II gentie line at Red Bluff Substation; loop the proposed Devers-Colorado River line into the proposed Red Bluff 500/ Substation; expand the Colorado River 500kV Substation to include a new switchayard and transformation; upgrade MIra Loma-Vista line drop at Vista Substation; install special protection system; upgrade the four (4) West of Devers lines. Install telecommunications facilities at Red Bluff Sustation to support line protection and special protection system; install RTU. 500 MW TOT321 Yes Yes PTC Filed Engineering & Design Jun-18 Mojave Solar Project Interconnect a 250 MW Solar Generating Facility to SCE's proposed Lockhart Substation; Construct a new Lockhart Substation; terminate the Mojave Solar two (2) gentie lines at Lockhart Substation; loop the existing Cool Water-Kramer No. 1 line into the proposed Lockhart Substation; upgrade the existing special protectionsystem; install telecommunications facilities to support line protection and the special protection system; install RTU. Construct a new Cool Water-Lugo transmission line. 250 MW TOT175 Yes Yes PTC Preparation CPCN Preparation Pending Engineering & Design Apr AV Solar I Kern Interconnect a 250 MW Solar Generating Facility to SCE's Whirlwind Substation; terminate the AV Solar I gentie line in a new position at Whirlwind Substation. Install special protection system; replace/upgrade 500kV circuit breakers at Vincent Substation. Install telecommunications facilities to support line protection and special protection system; install RTU. Install 2nd and 3rd AA transformers at Whirlwind Substation. 250 MW TOT345 Yes Yes Pending Engineering & Design Sep Generation Projects which have executed an interconnection agreement, require Network Upgrades on the ISO Grid, and are not yet in serivce. * Costs are Facilities Study level estimates and do not reflect final engineering. ** Unless otherwise noted, financing of Network Upgrades is initially provided by the generator prior to construction, and refunded to the generator after its project has achieved commercial operation in accordance with FERC Order 2003.