CA AB1577

Requires data center owners to submit monthly reports to the California Energy Commission including power usage effectiveness, water usage effectiveness, total water consumption, fuel consumed by onsite generators, electrical capacity, and energy consumption details

Applies to data centers with IT equipment loads greater than 10 kilowatts and 20 watts per square foot, with installed IT electrical capacity of at least 500 kilowatts

Mandates the Energy Commission include an assessment of data center electrical load trends in the 2029 integrated energy policy report, with projections, peak load demands, and recommendations for mitigating grid and emissions impacts

Requires data center owners to submit the same information to local agencies when applying for discretionary permits or land use authorizations for construction or operation

Protects submitted information from disclosure in ways that would reveal personally identifiable information or energy consumption data for specific utility customers; commission must publish data annually in anonymized, aggregated format