AB 303: Battery energy storage facilities.

California · Assembly · 2025–2026 Regular Session · last verified February 3, 2026

What AB 303 does, verified February 3, 2026

This bill adds a new chapter to the state's energy code, specifically regarding battery energy storage facilities. It excludes battery energy storage systems from the existing law that allows for large energy storage systems. The bill requires the state energy commission to deny pending applications for battery energy storage systems. The bill also prohibits the authorization of development projects that include battery energy storage systems within 3,200 feet of sensitive receptors or on environmentally sensitive sites. This provision imposes a state-mandated local program, requiring local agencies to approve such projects. The bill applies to all cities, including charter cities, as it addresses a statewide concern.

Bill journey

✓IntroducedComplete

2In CommitteeCurrent

3First Chamber FloorPending

4Second ChamberPending

5GovernorPending

6ChapteredPending

Last action: From committee: Filed with the Chief Clerk pursuant to Joint Rule 56. (2026-02-02)Alert me

Author and sponsors

Asm. Dawn AddisAuthor · California State Assembly

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Recent actions6 total · showing 5

Feb. 02, 2026	From committee: Filed with the Chief Clerk pursuant to Joint Rule 56.
Jan. 31, 2026	Died pursuant to Art. IV, Sec. 10(c) of the Constitution.
Apr. 02, 2025	In committee: Hearing postponed by committee.
Mar. 10, 2025	Referred to Coms. on U. & E., NAT. RES. and L. GOV.
Jan. 24, 2025	From printer. May be heard in committee February 23.

Full action history, 1 earlier actionConnect Plus