Utah (UT) data center power coverage
Real, sourced large-load tariff and interconnection research on file for Utah — never inferred, never scraped, never implied beyond what's actually been checked.
Large-load tariffs
Rocky Mountain Power (Utah), Large Load Act (SB 132) and rules
Threshold100 MW or more of requested retail service (Utah Code Title 54, Chapter 26)
StatusSTATE LAW IN EFFECT, NO GENERIC TARIFF. Utah's Large Load Act (enacted March 2025) requires customers asking for 100 MW or more to sign agreements covering their cost responsibility so existing customers do not pay costs attributable to the large load; implementing rules R746-318 took effect Jan 1, 2026. Rocky Mountain Power asked the Utah PSC in February 2026 (Docket 26-035-05) to approve its first large-load service contract under the Act, with a customer above 100 MW (contract dated Jan 20, 2026); the Division of Public Utilities, Office of Consumer Services and the company settled, and an order approving the settlement is dated April 10, 2026 (title seen in the PSC docket list; order text not read). The stipulation, which was read, says the customer bears the incremental costs, the customer's load is removed from the system allocation factors, and system power costs are credited for the customer's energy and exclude the resources built for it, so other Utah customers see no net increase. The charge amounts, term and collateral are designated highly confidential and are not public. The PSC is also investigating a Large Load Flexible Tariff (Dockets 25-R318-01 and 24-035-43; comments March 2026). Expect individual contracts. The rules text was not read. Do not assume a customer can see another customer's contract terms.
SourceUtah PSC Docket 26-035-05: settlement stipulation filed March 13, 2026 (pscdocs.utah.gov), read; order of April 10, 2026 known from its docket title only.
Interconnection & regulatory guidance
Utah — statewide 'Higher Bar' policy framework (Executive Order 2026-03)
Contact guidanceNo dedicated Utah utility large-load tariff is on file here yet -- contact the serving utility (Rocky Mountain Power, municipal utilities, etc.) directly. Separately, as of 2026-10-08, state agencies are directed to evaluate large data center projects against the 8 principles below -- this is a policy framework, not a numeric permitting gate or pause.
ThresholdNo specific MW threshold stated -- EO 2026-03 applies to 'large data center' projects generally, evaluated against the framework below rather than a bright-line size trigger.
ProcessGov. Cox signed EO 2026-03, 'Establishing a Higher Bar for Data Center Development in Utah,' May 29, 2026, directing state agencies to evaluate large data center projects against 8 principles: protecting the Great Salt Lake and other water resources; protecting air quality; promoting rural economic growth; mitigating wildlife impacts; protecting utility ratepayers; expanding energy capacity consistent with those principles; leading on 'pro-human' artificial intelligence; and providing meaningful public comment. Explicitly a regulatory framework, not a moratorium or pause -- triggered by public pressure following protests against a specific proposed mega data center ('Stratos Project', Kevin O'Leary). No numeric thresholds, deadlines, or enforcement mechanism were found in secondary coverage -- confirm with the specific reviewing agency how (or whether) this framework is actually being applied to a given project.
SourceExecutive Order 2026-03 (May 29, 2026) via eenews.net, datacenterdynamics.com, sltrib.com, swlaw.com (Governor's office primary EO text not directly located during this research).
Land-constraint screening
Every Kill Test automatically screens against 6 nationwide land-constraint layers, Utah included — no state-by-state gaps here.
FEMA Flood ZoneNearby WetlandsProtected / Conservation LandCritical HabitatSeismic HazardTribal Land
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