California signs seven laws making data centres carry their grid costs
Victoria Shinder2 min readCalifornia Governor Gavin Newsom signed seven bills on Monday aimed at giving communities more information about proposed data centres — their energy, water, workforce and land use — so that economic costs and benefits can be weighed. Utility Dive reported the signing on 22 September 2026.
According to the governor's office, the new laws require data centres to pay their fair share of grid update costs, to disclose water use to local governments, and they remove eligibility for blanket environmental exemptions.
Three bills are named. SB 1168 directs the California Public Utilities Commission to examine data centres' energy use and ensure they pay for transmission and distribution upgrades and load increases; its sponsor, state Senator Jerry McNerney, said Californians' utility bills are already among the highest in the nation and that rapid data centre growth threatens to send rates through the roof. SB 886 and SB 887, sponsored by state Senator Steve Padilla, require data centres to pay all infrastructure upgrade and generation costs, bear a larger share of wildfire mitigation and liability costs, and undergo environmental review, while giving local communities a say in projects.
The laws follow Los Angeles County's planning director ordering a temporary ban on large-scale AI data centre development in unincorporated areas. California hosts 296 data centres, the third highest count in the US according to Data Center Map.
What it means
The cost-allocation provisions are the operative ones, and they are narrower and more useful than the rhetoric around them. Making a large load pay for the transmission and distribution upgrades it necessitates is not a penalty; it is the ordinary principle that the cost-causer pays, applied to a customer class big enough that the socialised alternative is visible on everyone's bill.
The wildfire liability share is the provision to watch, because it is the unusual one. It attaches a portion of a system-wide risk cost to a specific customer class rather than to the rate base as a whole, and how that share is calculated will be litigated long before it is settled.
Two cautions. Removing blanket environmental exemptions means review, not refusal — the effect is schedule and disclosure rather than prohibition. And a direction to the CPUC to "examine" is the start of a proceeding, not a tariff: the number that decides whether this changes anything is the one the commission lands on, and that is a year or more away.