Data centers in California
The latest data center news for California, then every tracked campus of 100 MW or more with its status, size, power supply and impact rating.
Latest updates in California
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Voters back data center limits in 40 of 41 local ballot measures across 10 states
Baxtel, citing Ballotpedia's tally, reports voters limited data centers or rejected pro-development proposals in 40 of 41 local measures on Nov 3, with 21 in Ohio. Examples include bans in Hubbard and Granville, Ohio, a permanent ban above 10 MW in Emporia, Kansas, and moratoriums in Wells and Wiscasset, Maine. Results are unofficial, and the Washington Post counted a lower figure (at least 38 jurisdictions). Upcoming votes: Clarksville, Arkansas (Dec 1) and Mandan, North Dakota (Dec 15).
Sources: Baxtel · Electric Choice · Data Center Index
The buildout in California
No data center campus of 100 MW or more in California is in the index yet. The updates below follow projects, utility filings and policy in California that could change that.
Campus names link to full profiles on datacenterindex.info. Figures as of November 3, 2026. Source: Data Center Index (datacenterindex.info), Discovery Energy. How campuses are sized and rated: methodology.