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NewsKPBS Public MediaAugust 27, 2026San Diego

SDG&E proposes 145-mile Golden Pacific Powerlink transmission line

San Diego Gas and Electric (SDG&E) is proposing a 145-mile, 500-kilovolt transmission line to transport energy from the Imperial Valley to the San Onofre area. The project is currently in the public feedback phase, with construction potentially beginning in 2029 and service starting in 2032 if approved by state regulators.

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Why It Matters

The proposed project could impact property rights, wildfire risk, and insurance costs for residents along the route while aiming to meet California's projected doubling of electricity demand by 2045.

Key Facts

  • The proposed Golden Pacific Powerlink is a 145-mile, 500-kilovolt transmission line.
  • The route would run from the Imperial Valley substation to the border of Orange and San Diego counties.
  • California's peak electricity demand is expected to double by 2045.
  • The project is one of 45 transmission projects identified by the California Independent System Operator to meet energy goals.
  • Projected costs for the 45 identified projects range from $4 million to $2.3 billion.
  • If approved, construction could begin in 2029 with service starting in 2032.
  • The project requires approval from state regulators, who will evaluate wildfire and environmental risks.
  • Warner Springs is classified by Cal Fire as a 'Very High Fire Hazard Severity Zone'.
  • SDG&E is hosting public open houses in October 2023 to gather community feedback.

Who's Mentioned

organizationSan Diego Gas and Electric“Utility company proposing the transmission line project.”personHarrison Littrell“Warner Springs resident opposing the project.”personCarol Gibson“Fallbrook resident.”personAlex Welling“SDG&E spokesperson.”organizationCalifornia Independent System Operator“Manages the power grid and developed the transmission plan.”organizationCal Fire“State agency that classifies fire hazard zones.”