New California data centers and energy laws 2027: taking effect in 2027
8 new California laws on data centers and energy take effect in 2027. Each is listed below with its date, what it does and a link to the official text.
- 8 laws take effect on 1 January 2027.
Updated 25 October 2026
One-line summaries are drafted by software from the bill text and are not reviewed by an attorney.
New California data centers and energy laws in 2027
AB 1577: Data centers: reporting.
Requires data center owners to submit energy consumption and operational information to the state Energy Commission and to local agencies when applying for permits, with annual public reporting in anonymized form.
AB 2266: Electricity: load-serving entities.
Requires the Public Utilities Commission to use consistent methods for assessing resource reliability contributions and to consolidate load-serving entity procurement plans and reporting by 1 January 2030.
AB 2383: Electricity: data centers.
Requires the Public Utilities Commission to establish by 1 January 2028 a separate electricity rate classification for large energy use facilities, and requires electrical corporations and load-serving entities to offer compliant tariffs to such facilities.
AB 2469: Data centers: water use disclosures.
Cities and counties must require data center applicants to provide water supply assessments, water use assessments, water scarcity plans, and workforce disclosures, and assume full infrastructure improvement costs.
AB 2476: Electricity: integrated resource plans: Department of Water Resources: procurement.
Allows the Department of Water Resources to procure resources from pump hydroelectric facilities not exceeding 500 megawatts regardless of prior state funding.
AB 2619: Water resources: data centers.
Requires data center owners or operators to provide water suppliers with estimated water use projections before applying for initial city business licenses and to report annual water use upon license renewal.
SB 1168: Data centers: rate structures.
Requires the Public Utilities Commission to assess rate structures ensuring data centers pay their reasonable share of transmission, distribution, and reliability costs while reducing pressure on residential ratepayers.
SB 887: California Environmental Quality Act: environmental leadership development projects: data centers: geothermal powerplant projects.
Requires lead agencies to conduct full environmental review of data center projects instead of using categorical exemptions, and authorizes the Governor to certify data centers and geothermal powerplants as environmental leadership development projects.
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Questions about new California data centers and energy laws in 2027
When do new data centers and energy laws take effect in California in 2027?
Most take effect on 1 January 2027. Of the 8 laws listed here, 8 start on 1 January 2027. In California, a statute from a regular session takes effect on the 1 January after 90 days from enactment unless it is an urgency measure (Cal. Const. art. IV, sec. 8(c)(1)).
What new data centers and energy laws take effect on 1 January 2027 in California?
8 laws in data centers and energy, including California AB 1577 (Data centers: reporting), California AB 2266 (Electricity: load-serving entities), California AB 2383 (Electricity: data centers), California AB 2469 (Data centers: water use disclosures) and California AB 2476 (Electricity: integrated resource plans: Department of Water Resources: procurement). The full list, with what each one does, is above.
Is this legal advice?
No. Dates and the one-line summaries are drafted by software from the bill text and are not reviewed by an attorney. Each law links to the legislature’s own record: check the text before relying on it.
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