South Orange County Reliability Enhancement (SOCRE)

To improve safety and reliability for South Orange County’s electric utility customers, SDG&E plans to upgrade the decades-old lines, poles and substations within the cities of

  • San Juan Capistrano
  • San Clemente
  • Unincorporated areas of Orange County.

The Project

  • Rebuild the substation in San Juan Capistrano that was last renovated in the 1950’s;
  • Upgrade the transmission lines from 69kV and 138kV to 230kV in order to provide the electric reliability needed today; and 
  • Replace existing structures with taller new steel poles, which enhance safety and reliability.

Reliability Benefits

  • Improves reliability to existing electric system
  • Modernizes electric transmission system and replaces outdated equipment
  • Meet current and future energy needs of local home and business demands
  • Allows for operating flexibility
  • Meets federal reliability standards

What to Expect

Minimize community impacts. The four to five-year construction project will be phased in order to minimize community impacts as much as possible. SDG&E and contract crews will perform the majority of the work during normal business hours, Monday through Saturday. Should changes to this schedule be necessary, SDG&E will notify the local residents and businesses as well as the City and other appropriate agencies.

Maximize communication with community.  SDG&E will contact all affected community members through a variety of communications means such as US Mail, email, door-to-door outreach and news media.

Advance notification. Residents near the substations and transmission corridors may be subjected to temporary construction-related disturbances such as noise, dust, and traffic interruption. SDG&E will notify local residents in advance as much as possible and be available to answer questions.

Proponent’s Environmental Assessment (PEA)

CPUC Regulatory Process

SDG&E filed an application with the CPUC for the SOCRE project in 2012. Important dates and links below.

CPUC Scoping Process dates:

  • Public Meetings 1/23/13 & 1/24/13
  • Public Comment 1/9/13-2/22/13
  • Draft EIR- Comment Period Ended April 10, 2015
  • Recirculate limited sections of the Draft Environmental Impact Report (DEIR)
    • Comment period will begin: August 10, 2015. Conclude: September 24, 2015
  • Final Decision December 15, 2016

CPUC website for SOCRE Project

Go to the CPUC site

Para informacion Español

Spanish Flyer

Contact Us/More Information

  • Visit our Project Outreach Office at:
    31521 Camino Capistrano, Suite B
    San Juan Capistrano, CA 92675
    (949) 369-4700
    Open Monday-Friday
    Bilingual Services Available* Project Outreach Office

EMF Q&A for SOCRE Project


  • Construction Schedule

    As soon as all permits are received, anticipated October 2017, SDG&E workers will begin a four to five-year construction schedule.

    The project will begin with the reconstruction of the San Juan Capistrano substation. Workers will also begin removing the existing transmission structures and replace them with upgraded, modern structures.

    Construction Schedule
    2012 – 2017 Project Permitting
    2017 – 2021 Rebuild SJC Substation
    2017 – 2021 New transmission lines - Phased completion
    2017 – 2021 Replace existing structures with taller new steel poles

    On December 15, 2016 the CPUC approved SDG&E’s ‘Preservation Alternative’ for the SOCRE project. As conditioned in the approval, this alternative requires SDG&E to retain and restore the former utility structure located on Camino Capistrano (see 1920 photo above). Once a conceptual rendering is produced it will be included on this page.