The Definitive Guide toAI Data Centers
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US states with at least one approved large-load tariff governing data-center grid contracts (EEI census, September 2026; 7 more pending)

25 statesobserved

Value kindobserved — Reported measurements, counts, and specifications keep the precision and scope stated by their source; an exact specification is not treated as a range.
CaveatEEI census as of September 11, 2026; seven additional states had pending tariffs. At least one approval in a state does not establish identical terms across utilities. ERCOT process status is tracked in Chapter 3.2.
As of2026-09-11
SourceEdison Electric Institute, Large Load Projects and Tariffs, September 2026, page 12: 25 states with at least one approved tariff, 7 with pending tariffs. · EEI Large Load Projects and Tariffs, p. 12: September 2026 census, 25 states approved, 7 pending
Reviewchecking…review by 2027-01-15 · standard cadence
Recorded changeslast 2026-10-12 · 4 revisions tracked
Claim idus-states-with-at-least-one-approved-large-load

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