California approves $4.8 B grid expansion plan
California ISO Board approves 2024–2025 plan with 31 grid projects totaling $4.8 B to support rising demand and modernize the state’s power infrastructure.
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USA, California: The California Independent System Operator (ISO) Board has approved its 2024–2025 Transmission Plan, authorizing 31 new grid projects valued at approximately $4.8 B. Most of the projects, 28 out of 31, target rising electricity demand, particularly in the Greater San Francisco Bay Area, where electric vehicle adoption and building electrification are driving faster-than-expected growth.
Three additional projects are focused on integrating renewable energy to meet state climate goals. Developed in partnership with regulatory agencies including the California Public Utilities Commission (CPUC), this year’s plan extends its horizon from 10 to 15 years, in line with recent legislative changes that give more time for permitting and construction.
Among the approved initiatives are several reconductoring projects that upgrade existing lines with advanced conductors, boosting capacity without building entirely new lines. Other major upgrades include new 500 kV and 230 kV lines and infrastructure reinforcements across San Jose and Oakland.
California is expected to require over 76 GW of additional power by 2039. Peak demand growth forecasts have also been raised: in the Bay Area alone, the growth rate is expected to climb to 2.14 % per year.
This ambitious plan reflects a forward-looking approach to grid modernization, ensuring the state can meet growing demand and accelerate its energy transition while maintaining system reliability.
Source: T&D World
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