West of Devers Upgrade Project


Delivering Renewable Energy for Southern California

We are committed to upgrading the region’s power grid in order to help meet California’s renewable-power goals. Our West of Devers upgrade project will help in this effort by upgrading existing transmission lines within an existing transmission corridor to provide more capacity for renewable power to be delivered to the power grid.

  • Riverside County: Banning, Beaumont, Calimesa, and unincorporated areas
  • San Bernardino County: Colton, Grand Terrace, Loma Linda, Redlands, and unincorporated areas

The project will consist of removing and replacing approximately 48 corridor miles of existing 220 kV transmission lines with new double-circuit 220 kV transmission lines, between the existing Devers Substation (near Palm Springs), El Casco Substation (Calimesa), Vista Substation (in Grand Terrace), and San Bernardino Substation.

Project upgrades completed in May 2021. Currently conducting cleanup and restoration activities.

Expose as Block

  • 2011-2013: Project planning and public outreach activities.
  • October 2013: SCE submitted applications to federal and state regulatory agencies requesting approval to construct the project.
  • August 2016: CPCN (Certificate of Public Convenience and Necessity) received from the CPUC (California Public Utilities Commission).
  • December 2016: ROD (Record of Decision) received from the BLM (Bureau of Land Management).
  • Q4 2017: Obtain all necessary environmental permits and regulatory approvals. Start telecommunications work.
  • Q1 2018: Start major construction.
  • May 2021: Project completed and went into service.
Expose as Block

If you have questions about this project, please call our toll-free project hotline at 1-888-226-9916. 

Interested in working with SCE as a supplier? Learn more.