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SB-567 • 2026

Gravity-Based Energy Storage Well Pilot Program.

Gravity-Based Energy Storage Well Pilot Program.

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Enacted

This bill passed the Legislature and reached final enactment based on the latest official action.

Sponsor
Limón
Last action
2025-10-06
Official status
Chaptered by Secretary of State. Chapter 419, Statutes of 2025.
Effective date
Not listed

Plain English Breakdown

The official source material does not specify the exact number of idle oil or gas wells that are currently available for conversion.

Gravity-Based Energy Storage Well Pilot Program

The Gravity-Based Energy Storage Well Pilot Program allows up to 250 idle oil or gas wells to be converted into energy storage wells for testing until January 1, 2035.

What This Bill Does

  • Creates a pilot program that lets up to 250 idle oil or gas wells become gravity-based energy storage wells by January 1, 2035.
  • Requires the State Oil and Gas Supervisor to check if these wells are safe for conversion before they can be used as energy storage wells.
  • Needs operators of these new energy storage wells to report any leaks or problems right away and fix them.
  • Makes sure that all gravity-based energy storage wells are checked regularly to keep them safe.
  • Requires the Geologic Energy Management Division to look at how well the pilot program works by January 1, 2033.

Who It Names or Affects

  • Operators of oil and gas wells who want to convert their idle wells into energy storage wells.
  • The State Oil and Gas Supervisor and other state agencies that will oversee these new energy storage wells.
  • People living near the wells, as they need to be informed if there are any leaks or issues.

Terms To Know

Gravity-Based Energy Storage Well
A well that uses gravity to store and generate energy by moving water up and down in a deep hole underground.
Mechanical Integrity Testing
Checking if the parts of an oil or gas well are strong enough and safe for use, especially when changing its purpose from oil/gas production to storing energy.

Limits and Unknowns

  • The program only lasts until January 1, 2035.
  • Operators must pay a yearly charge to cover the costs of checking these wells.

Bill History

  1. 2025-10-06 California Legislative Information

    Chaptered by Secretary of State. Chapter 419, Statutes of 2025.

  2. 2025-10-06 California Legislative Information

    Approved by the Governor.

  3. 2025-09-17 California Legislative Information

    Enrolled and presented to the Governor at 2 p.m.

  4. 2025-09-09 California Legislative Information

    Assembly amendments concurred in. (Ayes 37. Noes 1. Page 2716.) Ordered to engrossing and enrolling.

  5. 2025-09-08 California Legislative Information

    In Senate. Concurrence in Assembly amendments pending.

  6. 2025-09-08 California Legislative Information

    Read third time. Passed. (Ayes 79. Noes 0. Page 3006.) Ordered to the Senate.

  7. 2025-09-04 California Legislative Information

    Ordered to third reading.

  8. 2025-09-04 California Legislative Information

    Read third time and amended.

  9. 2025-09-03 California Legislative Information

    Read second time. Ordered to third reading.

  10. 2025-09-02 California Legislative Information

    Read second time and amended. Ordered to second reading.

  11. 2025-08-29 California Legislative Information

    From committee: Do pass as amended. (Ayes 11. Noes 0.) (August 29).

  12. 2025-07-09 California Legislative Information

    July 9 set for first hearing. Placed on APPR. suspense file.

  13. 2025-06-24 California Legislative Information

    From committee: Do pass and re-refer to Com. on APPR. (Ayes 14. Noes 0.) (June 23). Re-referred to Com. on APPR.

  14. 2025-06-09 California Legislative Information

    Referred to Com. on NAT. RES.

  15. 2025-06-04 California Legislative Information

    In Assembly. Read first time. Held at Desk.

  16. 2025-06-03 California Legislative Information

    Read third time. Passed. (Ayes 33. Noes 1. Page 1447.) Ordered to the Assembly.

  17. 2025-05-27 California Legislative Information

    Read second time. Ordered to third reading.

  18. 2025-05-23 California Legislative Information

    Read second time and amended. Ordered to second reading.

  19. 2025-05-23 California Legislative Information

    From committee: Do pass as amended. (Ayes 5. Noes 0. Page 1204.) (May 23).

  20. 2025-05-16 California Legislative Information

    Set for hearing May 23.

  21. 2025-05-12 California Legislative Information

    May 12 hearing: Placed on APPR. suspense file.

  22. 2025-05-02 California Legislative Information

    Set for hearing May 12.

  23. 2025-05-01 California Legislative Information

    From committee: Do pass and re-refer to Com. on APPR. (Ayes 8. Noes 0. Page 963.) (April 30). Re-referred to Com. on APPR.

  24. 2025-04-02 California Legislative Information

    Set for hearing April 30.

  25. 2025-03-26 California Legislative Information

    Read second time and amended. Re-referred to Com. on E.Q.

  26. 2025-03-25 California Legislative Information

    From committee: Do pass as amended and re-refer to Com. on E.Q. (Ayes 7. Noes 0. Page 532.) (March 25).

  27. 2025-03-12 California Legislative Information

    Set for hearing March 25.

  28. 2025-03-05 California Legislative Information

    Referred to Coms. on N.R. & W. and E.Q.

  29. 2025-02-21 California Legislative Information

    From printer. May be acted upon on or after March 23.

  30. 2025-02-20 California Legislative Information

    Introduced. Read first time. To Com. on RLS. for assignment. To print.

Official Summary Text

SB 567, Limón.
Gravity-Based Energy Storage Well Pilot Program.
Existing law requires the State Oil and Gas Supervisor to supervise the drilling, operation, maintenance, and abandonment of wells so as to prevent damage to life, health, property, and natural resources, damage to underground oil and gas deposits from infiltrating water and other causes, loss of oil, gas, or reservoir of energy, and damage to underground and surface waters suitable for irrigation or domestic purposes by the infiltration of, or the addition of, detrimental substances. Existing law defines “wells” to mean oil or gas wells or other wells related to oil or gas production.
Under existing law, a person who fails to comply with the requirements relating to the regulation of wells is guilty of a misdemeanor.
This bill would, until January 1, 2035, establish the
Gravity-Based Energy Storage Well Pilot Program and would authorize the supervisor to authorize the conversion of not more than 250 wells for use as gravity-based energy storage wells, as defined, to evaluate their use, including the establishment of appropriate operating conditions and physical parameters to safely generate energy, as provided. The bill would authorize the supervisor, the State Water Resources Control Board, or an appropriate regional water quality control board, before authorizing the use of a well as a gravity-based energy storage well, to require the operator to provide certain information demonstrating the suitability of the well for use as a gravity-based energy storage well. The bill would require idle wells that are authorized for use as gravity-based energy storage wells to be identified as gravity-based energy storage wells in a plan for the management and elimination of idle
wells or updates to the plan required to be filed with the supervisor. The bill would require the Geologic Energy Management Division to require mechanical integrity testing of wells before conversion to gravity-based energy storage wells and not less than
annually thereafter. The bill would require an operator of a gravity-based energy storage well, in the event of a loss of mechanical integrity of the well or a leak to the environment, to notify the division, the State Air Resources Board, the appropriate regional water quality control board, and schools and community members within 3,200 feet of the well and to cease operation until the mechanical integrity is restored or to plug and abandon the well, as provided. The bill would require gravity-based energy storage wells to be continuously monitored for leaks. The bill would require operators of gravity-based energy storage wells to annually report to the division certain information regarding their operation of the gravity-based energy storage wells. The bill would specify that
the authorization for wells to be used as gravity-based energy storage wells ends at the termination of the pilot program. The bill would, by January 1, 2033, require the division, in consultation with certain entities, to evaluate the pilot program and make recommendations to the Legislature for a framework to implement an ongoing Gravity-Based Energy Storage Well Program to regulate the operation of gravity-based energy storage wells, as provided.
The bill would, until January 1, 2035, impose an annual charge on operators of gravity-based energy storage wells, as provided, to defray the regulatory costs incurred by the state in maintaining surveillance of those wells, ensuring that testing is conducted properly, and ensuring no damage occurs to the environment by reason of the conversion.
Because a violation of the requirements of the Gravity-Based Energy Storage Well Pilot Program would be a crime, this bill would impose a state-mandated local program.
The California Constitution requires the state to reimburse local agencies and school districts for certain costs mandated by the state. Statutory provisions establish procedures for making that reimbursement.
This bill would provide that no reimbursement is required by this act for a specified reason.

Current Bill Text

Read the full stored bill text
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