New Data Centers and Energy laws 2027: state data centers and energy laws taking effect in 2027
9 new state 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.
- 9 laws take effect on 1 January 2027, 8 of them in California.
- 2 states have dated laws so far. Most: California (8) and Tennessee (1).
Updated 25 October 2026By state
One-line summaries are drafted by software from the bill text and are not reviewed by an attorney.
New data centers and energy laws in 2027
California 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.
California 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.
California 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.
California 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.
California 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.
California 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.
California 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.
California 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.
Tennessee HB 1847: Computers and Electronic Processing - As enacted, generally prohibits a municipality or electric utility to pay or absorb the cost of electrical infrastructure incurred to serve a data center; makes related changes. - Amends TCA Title 5; Title 6; Title 7; Title 13 and Title 65.
Requires data center owners or operators to pay the full cost of electrical infrastructure needed to serve the data center, and prohibits electric utilities from raising rates for other customers to cover these costs, effective 1 January 2027.
Next year's data centers and energy laws are bills now. Follow them in every state with the Data Centers and Energy Load Tracker.
New data centers and energy laws in 2027 by state
New California data centers and energy laws in 2027
- AB 1577, Data centers: reporting. 1 January 2027
- AB 2266, Electricity: load-serving entities. 1 January 2027
- AB 2383, Electricity: data centers. 1 January 2027
- AB 2469, Data centers: water use disclosures. 1 January 2027
- AB 2476, Electricity: integrated resource plans: Department of Water Resources: procurement. 1 January 2027
- AB 2619, Water resources: data centers. 1 January 2027
- SB 1168, Data centers: rate structures. 1 January 2027
- SB 887, California Environmental Quality Act: environmental leadership development projects: data centers: geothermal powerplant projects. 1 January 2027
New Tennessee data centers and energy laws in 2027
- HB 1847, Computers and Electronic Processing - As enacted, generally prohibits a municipality or electric utility to pay or absorb the cost of electrical infrastructure incurred to serve a data center; makes related changes. - Amends TCA Title 5; Title 6; Title 7; Title 13 and Title 65. 1 January 2027
Questions about new data centers and energy laws in 2027
When do new data centers and energy laws take effect in 2027?
Most take effect on 1 January 2027. Of the 9 state laws listed here, 9 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?
9 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.
Which states have the most new data centers and energy laws in 2027?
California with 8 and Tennessee with 1, in the topics covered here.
Why is my state missing?
Many states never write a date into the bill and rely on a default rule instead, so a law appears here once its date can be read from the text.
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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