California bills · 2025-2026 Regular Session
California AB 1577
Data centers: reporting.
- Introduced
- In committee
- Passed House
- Passed Senate
- To Governor
- Became law
Sponsors
- Bauer-Kahan (Democratic)
Summary
Official abstract published by the California legislature· summary
Existing law establishes the State Energy Resources Conservation and Development Commission and vests the commission with various responsibilities with respect to developing and implementing the state's energy policies. Existing law requires the commission to biennially adopt an integrated energy policy report, as specified, and to make the reports accessible to state, local, and federal entities and to the general public.
This bill would require the commission to establish a process for the owner or operator of a data center, as defined, to submit specified information to the commission, including, among other information, the data center's location and size, the data center's power usage effectiveness, as defined, and the quantity of fuel consumed by onsite generators or other fuel-based energy systems, as specified. The bill would require the owner or operator of a data center to submit the required information in the manner and timeframe specified by the commission. The bill would require the commission, beginning with the 2029 integrated energy policy report, and in subsequent biennial reports thereafter as determined by the commission, to include an assessment of electrical load trends for data centers, as provided. The bill would require the commission to annually publish the information submitted in an anonymized and aggregated format on its internet website. The bill would require the commission to establish a process for the owner or operator of a data center to identify information that the owner or operator claims is exempted or prohibited from disclosure pursuant to federal or state law, as provided.
The bill would require the owner or operator of a data center, upon applying for a discretionary permit, entitlement, or land use authorization required for the construction or operation of the data center, to submit to the applicable local agency, as defined, specified information, including the expected annual energy consumption, as specified, and the expected sound levels attributable to the operation of the data center, as provided. The bill would authorize the local agency to use this information for various purposes, including, but not limited to, land use planning, infrastructure planning, energy supply assessment, and environmental review.
The bill would exempt a publicly funded research facility, public safety facility, publicly funded national security facility, publicly owned facility, or other utility facility, as provided, from the above-described provisions.
The bill would prohibit the commission or a local agency from disclosing the information described above in a manner that would result in the disclosure of personally identifiable information or energy consumption data for a data center customer, as provided.
Existing constitutional provisions require that a statute that limits the right of access to the meetings of public bodies or the writings of public officials and agencies be adopted with findings demonstrating the interest protected by the limitation and the need for protecting that interest.
This bill would make legislative findings to that effect.
Text versions
- 09/21/26 - Chaptered· Sep 21, 2026
- 09/01/26 - Enrolled· Sep 1, 2026
- 08/21/26 - Amended Senate· Aug 21, 2026
- 08/13/26 - Amended Senate· Aug 13, 2026
- 07/02/26 - Amended Senate· Jul 2, 2026
- 06/11/26 - Amended Senate· Jun 11, 2026
- 05/18/26 - Amended Assembly· May 18, 2026
- 04/13/26 - Amended Assembly· Apr 13, 2026
- 03/26/26 - Amended Assembly· Mar 26, 2026
- 01/12/26 - Introduced· Jan 12, 2026
- AB1577
Roll-call votes
State vote data last updated Oct 15, 2026, 8:06 AM.
| Date | Vote | Result | Your legislators |
|---|---|---|---|
| Aug 27, 2026 House | AB 1577 Bauer-Kahan Concurrence in Senate Amendments | pass | Set your home in California to see |
| Aug 26, 2026 Senate | 3rd Reading AB1577 Bauer-Kahan By McGuire | pass | Set your home in California to see |
| Aug 13, 2026 Senate | Do pass as amended | pass | Set your home in California to see |
| Aug 3, 2026 Senate | Placed on suspense file | pass | Set your home in California to see |
| Jun 30, 2026 Senate | Do pass as amended, but first amend, and re-refer to the Committee on [Appropriations] | pass | Set your home in California to see |
| Jun 24, 2026 Senate | Do pass, but first be re-referred to the Committee on [Judiciary] | pass | Set your home in California to see |
| May 27, 2026 House | AB 1577 Bauer-Kahan Assembly Third Reading | pass | Set your home in California to see |
| May 14, 2026 House | Do pass as amended. | pass | Set your home in California to see |
| Apr 20, 2026 House | Do pass and be re-referred to the Committee on [Appropriations] | pass | Set your home in California to see |
| Apr 8, 2026 House | Do pass as amended and be re-referred to the Committee on [Natural Resources] | pass | Set your home in California to see |
Actions
- Sep 21, 2026 · Legislature
Chaptered by Secretary of State - Chapter 434, Statutes of 2026. - Sep 21, 2026 · Legislature
Approved by the Governor. - Sep 4, 2026 · Legislature
Enrolled and presented to the Governor at 4 p.m. - Aug 27, 2026 · House
Senate amendments concurred in. To Engrossing and Enrolling. (Ayes 58. Noes 11. Page 6695.). - Aug 27, 2026 · House
In Assembly. Concurrence in Senate amendments pending. - Aug 26, 2026 · Senate
Read third time. Passed. Ordered to the Assembly. (Ayes 29. Noes 10.). - Aug 24, 2026 · Senate
Read second time. Ordered to third reading. - Aug 21, 2026 · Senate
Read third time and amended. Ordered to second reading. - Aug 17, 2026 · Senate
Read second time. Ordered to third reading. - Aug 13, 2026 · Senate
Read second time and amended. Ordered returned to second reading. - Aug 13, 2026 · Senate
From committee: Amend, and do pass as amended. (Ayes 5. Noes 2.) (August 13). - Aug 3, 2026 · Senate
In committee: Referred to APPR. suspense file. - Jul 2, 2026 · Senate
Read second time and amended. Re-referred to Com. on APPR. - Jul 1, 2026 · Senate
From committee: Amend, and do pass as amended and re-refer to Com. on APPR. (Ayes 11. Noes 2.) (June 30). - Jun 24, 2026 · Senate
From committee: Do pass and re-refer to Com. on JUD. (Ayes 13. Noes 4.) (June 24). Re-referred to Com. on JUD. - Jun 11, 2026 · Senate
From committee chair, with author's amendments: Amend, and re-refer to committee. Read second time, amended, and re-referred to Com. on E., U & C. - Jun 10, 2026 · Senate
Referred to Coms. on E., U & C. and JUD. - May 27, 2026 · Senate
In Senate. Read first time. To Com. on RLS. for assignment. - May 26, 2026 · House
Read third time. Passed. Ordered to the Senate. (Ayes 57. Noes 16.) - May 19, 2026 · House
Read second time. Ordered to third reading. - May 18, 2026 · House
Read second time and amended. Ordered returned to second reading. - May 14, 2026 · House
From committee: Amend, and do pass as amended. (Ayes 11. Noes 4.) (May 14). - May 6, 2026 · House
In committee: Set, first hearing. Referred to APPR. suspense file. - Apr 21, 2026 · House
From committee: Do pass and re-refer to Com. on APPR. (Ayes 9. Noes 4.) (April 20). Re-referred to Com. on APPR. - Apr 14, 2026 · House
Re-referred to Com. on NAT. RES. - Apr 13, 2026 · House
Read second time and amended. - Apr 9, 2026 · House
From committee: Amend, and do pass as amended and re-refer to Com. on NAT. RES. (Ayes 13. Noes 5.) (April 8). - Apr 6, 2026 · House
Re-referred to Com. on U. & E. - Mar 26, 2026 · House
From committee chair, with author's amendments: Amend, and re-refer to Com. on U. & E. Read second time and amended. - Mar 16, 2026 · House
Referred to Coms. on U. & E. and NAT. RES. - Jan 13, 2026 · House
From printer. May be heard in committee February 12. - Jan 12, 2026 · House
Read first time. To print.