AB 1408: Electricity: interconnections.

Official summary

Legislative Counsel’s Digest (official, as of the latest version). Written by nonpartisan legislative staff; reproduced verbatim.

Existing law establishes the Independent System Operator (ISO) as a nonprofit, public benefit corporation and requires the ISO, among other duties, to ensure the efficient use and reliable operation of the transmission grid consistent with the achievement of planning and operating reserve criteria, as provided.

This bill would require the ISO to integrate surplus interconnection service considerations into its long-term transmission planning and enhance transparency around surplus interconnection service opportunities, as specified.

Existing law vests the Public Utilities Commission with regulatory authority over public utilities, including electrical corporations, while local publicly owned electric utilities are under the direction of their governing boards.

Existing law requires the commission to adopt a process for each load-serving entity to file an integrated resource plan, adopt a schedule for periodic updates to the plan, and ensure each load-serving entity take specified actions, as specified. Existing law also requires the governing board of each local publicly owned electric utility with an annual electrical demand exceeding 700 gigawatthours to adopt an integrated resource plan and a process for updating the plan at least once every 5 years to ensure the utility achieves certain goals, as specified.

This bill would require each electrical corporation, and each local publicly owned utility with an annual electrical demand exceeding 700 gigawatthours, to require the evaluation of surplus interconnection service options and to consider surplus interconnection service options, for purposes of its integrated resource plan.

This bill would also require each electrical corporation or local publicly owned electric utility to use available grid infrastructure through surplus interconnection service to use any available interconnection capacity, as specified.

Sponsors

Sponsors by party (alphabetical): Democratic 3

“Support” is shown only as formal sponsorship recorded by the legislature. Roll-call votes are available on the official bill page.

Recent official actions

1. January 22, 2026Consideration of Governor's veto stricken from file.
2. October 3, 2025Consideration of Governor's veto pending.
3. October 3, 2025Vetoed by Governor.
4. September 15, 2025Enrolled and presented to the Governor at 4:30 p.m.
5. September 4, 2025Senate amendments concurred in. To Engrossing and Enrolling. (Ayes 78. Noes 0. Page 2926.).
6. September 3, 2025In Assembly. Concurrence in Senate amendments pending.
7. September 3, 2025Read third time. Passed. Ordered to the Assembly. (Ayes 40. Noes 0. Page 2467.).
8. September 2, 2025Read second time. Ordered to third reading.
9. August 29, 2025Read third time and amended. Ordered to second reading.
10. August 26, 2025Read second time. Ordered to third reading.
11. August 25, 2025From committee: Be ordered to second reading pursuant to Senate Rule 28.8.
12. August 13, 2025In committee: Hearing postponed by committee.