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California Data Center Laws
Coverage from Allen Matkins, South Yuba River Citizens League, and others
Signed on September 21, 2026, California’s seven-law package establishes statewide requirements for data-center development and operations.
It expands environmental review under CEQA, requires disclosures about energy, facility operations, and water, and provides for water-supply and scarcity planning. The laws also direct regulators to develop electricity tariffs and cost-allocation rules for large facilities, including provisions addressing grid upgrades and protections for other ratepayers. State agencies and the California Public Utilities Commission have roles in implementing the framework.
The update adds that certain projects or operators may have to pay for necessary water infrastructure, with some water-planning requirements beginning in 2028. It also introduces investment competitiveness as a concern in the local debate.
The current version largely confirms the previous account; it adds no substantive policy change or implementation update.
The current version clarifies that the laws remove some categorical environmental-review exemptions while preserving an expedited pathway for eligible projects. It also identifies the California Energy Commission as an agency involved in information collection and load analysis.
The story now includes local siting resistance alongside the state law: some California jurisdictions are considering or adopting restrictions, while others pursue data center projects. The CPUC’s pending work is also specified to include interconnection rules as well as tariffs.
California enacted seven laws requiring data center operators to disclose resource use, plan for water needs, and take on a greater share of electricity and infrastructure costs. The package also changes environmental review and directs regulators to develop new rate and oversight requirements. Its practical effects will depend on agency implementation and may influence project costs and approval timelines.