The Valley South Subtransmission Project is our proposal to upgrade the region’s existing electrical infrastructure and improve its overall electrical reliability.
This project will serve the cities of Menifee, Murrieta, Temecula, Wildomar and portions of unincorporated Riverside County, including French Valley, Murrieta Hot Springs, and Winchester.
This project includes the following:
- The proposed project will be approximately 15 miles in length
- Construction of a new 115 kilovolt (kV) subtransmission line from our existing Valley Substation in Menifee and ending east of our existing Auld Substation in Murrieta
- Reconducter (install new conductor wires) on approximately 3.4 miles of an existing 115 kV line from east of our existing Auld Substation in Murrieta to west of our existing Triton Substation in Temecula
- Install communication equipment at area substations to support the proposed Valley South Subtransmission Project
- Equipment modifications at Valley Substation
Project is online and operational as of early 2021.
Expose as Block
No
- 2011 - 2014: Project planning and public outreach activities
- December 2014: SCE filed the application for a Permit to Construct (PTC) with the CPUC
- December 2016: Permit to Construct Approved
- Mid-year 2019: Anticipated start of construction
- Late to end 2020: Anticipated project completion date
Expose as Block
No
Project Information
- Spring 2019 Construction Update
- Project Map
- Project Map Underground Section
- Project Update 2017
- Project Newsletter September 2014
Project Application
Proponent's Environmental Assessment (PEA)
- PEA Chapters 1-3 (Vol 1)
- PEA Chapter 4 (Vol 2)
- PEA Chapters 4-6 (Vol 3)
- PEA Appendices A-E (Vol 4.1)
- PEA Appendix F (Vol 4.2)
- PEA Appendix F (Vol 4.3)
- PEA Appendix F (Vol 4.4)
- PEA Appendices F-J (Vol 4.5)
Environmental Impact Report
Expose as Block
No