National Solar Capacity Ranking: 1st
Data Current Through: Q4 2024
California has the largest solar market in the U.S. and has been a longtime champion of solar because of the many economic and environmental benefits it provides, including billions in local investment. California has over 49,000 MW of installed capacity and solar supplies more than 31 percent of California’s electricity today, but it must play a bigger role if the state is to reach climate and energy goals.
California has the largest solar market in the U.S. and has been a longtime champion of solar because of the many economic and environmental benefits it provides, including billions in local investment. California has over 49,000 MW of installed capacity and solar supplies more than 31 percent of California’s electricity today, but it must play a bigger role if the state is to reach climate and energy goals.
50,640
1st (2nd in 2024)
14,954,169 homes
32.35%
80,056
2169 (384 Manufacturers, 958 Installers/Developers, 827 Others)
$111.9 billion
42% over the last 10 years
19,038 MW over the next 5 years (ranks 2nd)
2,166,539
CPUC: California Solar Consumer Protection Guide
This guide is from the California Public Utilities Commission (CPUC), a government agency that regulates privately-owned utilities like Pacific Gas and Electric Company (PG&E), Southern California Edison Company (SCE), and San Diego Gas & Electric Company (SDG&E).
California Energy Storage Policy and Market Overview
Energy storage deployment in California is rapidly accelerating and procurement has increased by 1,250% since 2019. California is leading deployment with over 13,000 MW of storage capacity across nearly 155,000 sites. By 2045, the state expects to reach 52,000 MW of storage. However, the decision to phase out net metering for NEM 3.0 (Net Billing Tariff) presents market uncertainties.
The Energy Storage Systems Act (2010) was the first state legislation codifying an energy storage procurement policy, set at an aggressive 1,825 MW by 2020 with BTM carveouts. In 2024, California reaffirmed ambitious storage goals and set a long-duration energy storage target, planning for 2 GW by 2037. Coupled with swift regulatory guidelines, robust incentives, and state funding, the deployment of both BTM and grid-scale storage is thriving.
The statewide Self-Generation Incentive Program (SGIP) is a key component driving California’s successful market growth. SGIP is the largest solar and storage incentives program in the US, providing services valued at over $1 billion annually. California’s ambitious storage policies and incentives are forming one of the most robust procurements of energy storage infrastructure in the US.
California Energy Storage Policy Resources