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Our Projects

What We’ve Been Up To

West Of Devers Project

Delivering Renewable Energy for Southern California.

The West of Devers Upgrade Project will provide the additional capacity necessary to bring renewable and conventional generation being developed in desert areas around Blythe and Desert Center, California, to customer load centers west of Devers Substation. These significant upgrades will enhance electric reliability for all customers and help to make the power grid greener for California. The Project consists 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.

West of Devers Project

Mesa 500 kV Substation Project

  • Replacement of a section of a Metropolitan Water District 72-inch-diameter water line within the Mesa Substation property and adjacent northern transmission ROW with an 84-inch-diame-ter water line
  • Construction of the 500/220/66/16 – kV Mesa Substation and demolition of the existing 220/66/16 – kV substation in the City of Monterey Park. The substation will be located at the existing Mesa Substation site and will result in a 69.4 – acre footprint expanded from the cur-rent 21.6 – acre footprint
  • Removal, relocation, modification, and/or construction of transmission, sub-transmission, and distribution structures within SCE-owned properties, right(s)-of-way (ROW), and franchise areas in the cities of Monterey Park, Montebello, and Commerce and portions of unincorporated Los Angeles County to accommodate the new substation configuration
  • Installation of two new telecommunications lines and reroute of one existing telecommunications line within the cities of Monterey Park, Montebello, Rosemead, and portions of unincorporated Los Angeles County.
  • Reroute of existing telecommunications lines inside the perimeter fence lines of Vincent, Pardee, and Walnut Substations.
  • Conversion of an existing distribution line from overhead to underground between three street lights within the City of Bell Gardens.
  • Installation of a temporary 220-kV circuit loop-in at Goodrich Substation in Pasadena to allow for continued service to Pasadena during required outages for the 220-kV line.
  • Replacement of 220-kV line termination equipment at the existing Laguna Bell and Lighthipe Substations.
  • Upgrades to various 66-kV and 220-kV line protection relays and/or telecommunications equipment inside the existing Mechanical Electrical Equipment Rooms (MEER’s) at 27 satellite substations across the Electrical Needs Area (ENA).
Mesa Substation Project

Valley South Subtransmission Project

  • Construction of a new approximately 12-mile 115-kV subtransmission line between the Valley Substation and a tubular steel pole (TSP) located at the intersection of Leon Road and Benton Road (Riverside County),
  • Replacement of approximately 3.4 miles of existing 115-kV conductor from the Leon/Benton Road TSP to an existing TSP (Terminal TSP) located just outside SCE’s 115/12 kV Triton Substation (City of Temecula),
  • Relocation of existing distribution and telecommunication lines to support the installation of the new 115 kV subtransmission line, and
  • Installation of telecommunications facilities to connect the proposed subtransmission line to SCE’s existing telecommunication system.

Valley-Ivy Glen 115kV Subtransmission Line

  • Construction of new 115 kV subtransmission line approximately 27 miles in length originating at SCE’s Valley 500/115 kV Substation and terminating at the Ivyglen Substation, in existing and new right-of-way. The Project includes several underground sections of duct bank.
  • Modification to portions of the existing Valley-Elsinore-Fogarty and Fogarty-Ivyglen 115 kV subtransmission systems to accommodate the Valley-Ivyglen circuit installation.
  • Installation of a new fiber optic line between Valley and Ivyglen Substations.
  • Relocation of existing distribution and telecommunications circuits from existing poles to new poles to support installation of the new 115 kV subtransmission line.

FAA Marker Ball Project

  • Install 600 FAA aerial obstruction marker balls on 58 spans and 20 different circuits from Big Creek to San Onofre to resolve an SCE internal audit.

FAA Lighting Upgrade Project

  • Diagnosed SCE’s deteriorating FAA Lighting power systems.
  • Handled warranty negotiations with lighting manufacture on behalf of SCE.
  • Tested the manufacture’s recommended power supply upgrade against FAA requirements. Manufacture’s system failed.
  • Through ULM’s research and devolvement an effective power supply system was designed and created for SCE.
  • Upgraded Solar power systems on all of SCE 121 FAA marked transmission structures.
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