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    AB-222
    Energy & Environment

    Data centers: power usage effectiveness: cost shifts.

    Engrossed
    CA
    ∙
    2025-2026 Regular Session
    1
    1
    Track
    Track

    Key Takeaways

    • Requires data centers to report their power usage effectiveness ratios to the state Energy Commission twice yearly.
    • Mandates a state assessment by 2027 of how data centers affect electricity costs for other utility customers.
    • Establishes monitoring of data center electricity consumption trends and future load projections.
    • Requires recommendations for reducing data centers' impact on the electrical grid by 2027.

    Summary

    Assembly Member Bauer-Kahan's data center energy monitoring legislation requires California's data centers to report their power usage effectiveness ratios to state regulators while directing comprehensive assessments of their impact on electrical costs and grid demands. The bill establishes a biannual reporting system through which data center owners must submit their ratio of total energy consumption to IT equipment energy use to the California Energy Commission.

    The Energy Commission must incorporate data center electrical load trends into its 2027 integrated energy policy report, including future load projections, peak demand patterns, and recommendations for reducing grid impacts through efficiency and demand response measures. While allowing aggregate reporting of energy consumption data, the bill prohibits disclosure of information that could identify specific utility customers or their usage patterns.

    The California Public Utilities Commission must evaluate how new data center electrical loads affect costs for other utility customers, examining both energy procurement expenses and infrastructure needs for new or expanded facilities. If the assessment reveals substantial cost shifts to other customers, the PUC must identify potential mitigation strategies. This analysis, due by January 2027, will be submitted to legislative committees and posted publicly, with these provisions sunsetting in 2031.

    Key Dates

    Next Step
    Referred to the Senate Standing Committee on Judiciary
    Next Step
    Senate Committee
    Referred to the Senate Standing Committee on Judiciary
    Hearing scheduled for , State Capitol, Room 112
    Senate Energy, Utilities and Communications Hearing
    Senate Committee
    Senate Energy, Utilities and Communications Hearing
    Do pass as amended, but first amend, and re-refer to the Committee on [Judiciary]
    Vote on Assembly Floor
    Assembly Floor
    Vote on Assembly Floor
    AB 222 Bauer-Kahan Assembly Third Reading
    Assembly Appropriations Hearing
    Assembly Committee
    Assembly Appropriations Hearing
    Do pass as amended
    Assembly Privacy And Consumer Protection Hearing
    Assembly Committee
    Assembly Privacy And Consumer Protection Hearing
    Do pass as amended and be re-referred to the Committee on [Appropriations]
    Assembly Utilities And Energy Hearing
    Assembly Committee
    Assembly Utilities And Energy Hearing
    Do pass as amended and be re-referred to the Committee on [Privacy and Consumer Protection]
    Introduced
    Assembly Floor
    Introduced
    Read first time. To print.

    Contacts

    Profile
    Anna CaballeroD
    Senator
    Committee Member
    Not Contacted
    Not Contacted
    Profile
    Roger NielloR
    Senator
    Committee Member
    Not Contacted
    Not Contacted
    Profile
    Benjamin AllenD
    Senator
    Committee Member
    Not Contacted
    Not Contacted
    Profile
    Eloise ReyesD
    Senator
    Committee Member
    Not Contacted
    Not Contacted
    Profile
    Scott WienerD
    Senator
    Committee Member
    Not Contacted
    Not Contacted
    0 of 14 row(s) selected.
    Page 1 of 3
    Select All Legislators
    Profile
    Anna CaballeroD
    Senator
    Committee Member
    Profile
    Roger NielloR
    Senator
    Committee Member
    Profile
    Benjamin AllenD
    Senator
    Committee Member
    Profile
    Eloise ReyesD
    Senator
    Committee Member
    Profile
    Scott WienerD
    Senator
    Committee Member
    Profile
    Henry SternD
    Senator
    Committee Member
    Profile
    Rebecca Bauer-KahanD
    Assemblymember
    Bill Author
    Profile
    Maria DurazoD
    Senator
    Committee Member
    Profile
    Tom UmbergD
    Senator
    Committee Member
    Profile
    John LairdD
    Senator
    Committee Member
    Profile
    Akilah Weber PiersonD
    Senator
    Committee Member
    Profile
    Angelique AshbyD
    Senator
    Committee Member
    Profile
    Aisha WahabD
    Senator
    Committee Member
    Profile
    Suzette ValladaresR
    Senator
    Committee Member
    AB-222
    support
    Meeting with three legislators to get AB-222 Passed
    I'm supporting AB-222, which mandates energy usage reporting for data centers and includes establishing efficiency standards aligned with California's environmental goals. I'll meet with three legislators leaning toward approval to emphasize the importance of this bill in promoting transparency and sustainability in AI development and data center operations.
    Fund Campaign

    Get Involved

    Act Now!

    Email the authors or create an email template to send to all relevant legislators.

    Introduced By

    Rebecca Bauer-Kahan
    Rebecca Bauer-KahanD
    California State Assembly Member
    40% progression
    Bill has passed all readings in its first house and is ready to move to the other house (6/2/2025)

    Latest Voting History

    View History
    July 1, 2025
    PASS
    Senate Committee
    Senate Energy, Utilities and Communications Hearing
    AyesNoesNVRTotalResult
    133117PASS

    Key Takeaways

    • Requires data centers to report their power usage effectiveness ratios to the state Energy Commission twice yearly.
    • Mandates a state assessment by 2027 of how data centers affect electricity costs for other utility customers.
    • Establishes monitoring of data center electricity consumption trends and future load projections.
    • Requires recommendations for reducing data centers' impact on the electrical grid by 2027.
    AB-222
    support
    Meeting with three legislators to get AB-222 Passed
    I'm supporting AB-222, which mandates energy usage reporting for data centers and includes establishing efficiency standards aligned with California's environmental goals. I'll meet with three legislators leaning toward approval to emphasize the importance of this bill in promoting transparency and sustainability in AI development and data center operations.
    Fund Campaign

    Get Involved

    Act Now!

    Email the authors or create an email template to send to all relevant legislators.

    Introduced By

    Rebecca Bauer-Kahan
    Rebecca Bauer-KahanD
    California State Assembly Member

    Summary

    Assembly Member Bauer-Kahan's data center energy monitoring legislation requires California's data centers to report their power usage effectiveness ratios to state regulators while directing comprehensive assessments of their impact on electrical costs and grid demands. The bill establishes a biannual reporting system through which data center owners must submit their ratio of total energy consumption to IT equipment energy use to the California Energy Commission.

    The Energy Commission must incorporate data center electrical load trends into its 2027 integrated energy policy report, including future load projections, peak demand patterns, and recommendations for reducing grid impacts through efficiency and demand response measures. While allowing aggregate reporting of energy consumption data, the bill prohibits disclosure of information that could identify specific utility customers or their usage patterns.

    The California Public Utilities Commission must evaluate how new data center electrical loads affect costs for other utility customers, examining both energy procurement expenses and infrastructure needs for new or expanded facilities. If the assessment reveals substantial cost shifts to other customers, the PUC must identify potential mitigation strategies. This analysis, due by January 2027, will be submitted to legislative committees and posted publicly, with these provisions sunsetting in 2031.

    40% progression
    Bill has passed all readings in its first house and is ready to move to the other house (6/2/2025)

    Key Dates

    Next Step
    Referred to the Senate Standing Committee on Judiciary
    Next Step
    Senate Committee
    Referred to the Senate Standing Committee on Judiciary
    Hearing scheduled for , State Capitol, Room 112
    Senate Energy, Utilities and Communications Hearing
    Senate Committee
    Senate Energy, Utilities and Communications Hearing
    Do pass as amended, but first amend, and re-refer to the Committee on [Judiciary]
    Vote on Assembly Floor
    Assembly Floor
    Vote on Assembly Floor
    AB 222 Bauer-Kahan Assembly Third Reading
    Assembly Appropriations Hearing
    Assembly Committee
    Assembly Appropriations Hearing
    Do pass as amended
    Assembly Privacy And Consumer Protection Hearing
    Assembly Committee
    Assembly Privacy And Consumer Protection Hearing
    Do pass as amended and be re-referred to the Committee on [Appropriations]
    Assembly Utilities And Energy Hearing
    Assembly Committee
    Assembly Utilities And Energy Hearing
    Do pass as amended and be re-referred to the Committee on [Privacy and Consumer Protection]
    Introduced
    Assembly Floor
    Introduced
    Read first time. To print.

    Latest Voting History

    View History
    July 1, 2025
    PASS
    Senate Committee
    Senate Energy, Utilities and Communications Hearing
    AyesNoesNVRTotalResult
    133117PASS

    Contacts

    Profile
    Anna CaballeroD
    Senator
    Committee Member
    Not Contacted
    Not Contacted
    Profile
    Roger NielloR
    Senator
    Committee Member
    Not Contacted
    Not Contacted
    Profile
    Benjamin AllenD
    Senator
    Committee Member
    Not Contacted
    Not Contacted
    Profile
    Eloise ReyesD
    Senator
    Committee Member
    Not Contacted
    Not Contacted
    Profile
    Scott WienerD
    Senator
    Committee Member
    Not Contacted
    Not Contacted
    0 of 14 row(s) selected.
    Page 1 of 3
    Select All Legislators
    Profile
    Anna CaballeroD
    Senator
    Committee Member
    Profile
    Roger NielloR
    Senator
    Committee Member
    Profile
    Benjamin AllenD
    Senator
    Committee Member
    Profile
    Eloise ReyesD
    Senator
    Committee Member
    Profile
    Scott WienerD
    Senator
    Committee Member
    Profile
    Henry SternD
    Senator
    Committee Member
    Profile
    Rebecca Bauer-KahanD
    Assemblymember
    Bill Author
    Profile
    Maria DurazoD
    Senator
    Committee Member
    Profile
    Tom UmbergD
    Senator
    Committee Member
    Profile
    John LairdD
    Senator
    Committee Member
    Profile
    Akilah Weber PiersonD
    Senator
    Committee Member
    Profile
    Angelique AshbyD
    Senator
    Committee Member
    Profile
    Aisha WahabD
    Senator
    Committee Member
    Profile
    Suzette ValladaresR
    Senator
    Committee Member