The California Independent System Operator (CAISO) board has approved its 2024-2025 transmission plan, outlining 31 infrastructure projects designed to address growing electricity demand and renewable integration across the state.

The plan, estimated to cost $4.8 billion over the next 10 to 15 years, includes 28 projects focused on meeting increased electrification demand—especially in the Greater San Francisco Bay Area—and 3 projects aimed at supporting California’s renewable energy portfolio requirements.

CAISO extended its planning horizon to 15 years this cycle, reflecting the state’s forecast to add over 76 gigawatts (GW) of capacity by 2039. The plan anticipates peak demand growth increasing from 0.99% to 1.53% annually, with the Bay Area experiencing growth as high as 2.14%, driven by electrification in transport and buildings, and rising energy use in AI data centers.

Key Bay Area projects include new 500 kV transmission lines, reconductoring and upgrades of existing 115 kV and 230 kV lines, and substation capacity enhancements in San Jose and Oakland.

Neil Millar, CAISO’s Vice President of Transmission Planning, emphasized collaboration with regional partners to ensure California’s grid remains reliable, clean, and cost-effective.

The plan follows extensive stakeholder engagement and public presentations to refine project priorities.

Source: dailyenergyinsider.com