Utility Tariff Analysis · Updated September 2026

Utah's Flexible Tariff Investigation for Large Loads: What It Means for AI Data Centre Siting in Utah

Large loads under a flexible-tariff structure now being investigated are the subject of a Utah legislative mandate requiring the Public Service Commission to investigate a flexible tariff specifically for large loads in Rocky Mountain Power's service territory — an approach that would let large customers accept curtailment or flexibility provisions in exchange for different rate terms, rather than a fixed minimum-take structure alone.

Utah's Flexible Tariff Investigation for Large Loads — AI data centre infrastructure

Utah's Flexible Tariff Investigation for Large Loads

UT

Rocky Mountain Power (PacifiCorp)

Utah Public Service Commission investigation (Rocky Mountain Power)

Regulatory docket / filing reference

Large loads under a flexible-tariff structure now being investigated

Who the tariff applies to

Large loads under a flexible-tariff structure now being investigated are the subject of a Utah legislative mandate requiring the Public Service Commission to investigate a flexible tariff specifically for large loads in Rocky Mountain Power's service territory — an approach that would let large customers accept curtailment or flexibility provisions in exchange for different rate terms, rather than a fixed minimum-take structure alone.

Also active in Utah: Utah's relatively low electricity rates (residential around 13.37 cents/kWh, commercial near 10.99 cents/kWh, both well below the national average) make it an attractive baseline cost environment for large loads even before the flexible tariff investigation concludes.

Figures compiled from the Edison Electric Institute's "Large Load Projects and Tariffs" (September 2026) member-company summary and public regulatory filings. Confirm current tariff terms directly with Rocky Mountain Power (PacifiCorp) and the relevant state public utility commission before relying on any figure for a capital decision.

Weighing Utah against another state or a Canadian province with a different rate and interconnection picture entirely? Run both sides of the comparison through our licensed AI data centre cost configurator — it applies each jurisdiction's actual power rate, tax treatment and large-load tariff rules to the same seven build configurations.

Model This State on Your Own Site

Every figure above comes from the same power-cost and tariff dataset behind the SCR AI Build Configurator — a licensed, embeddable widget that models seven data centre build configurations against all nine Canadian provinces and all 50 US states plus DC, returning capital expenditure by line item, energy cost, revenue by commercial structure, EBITDA and payback.

LicencePrice (CAD)Who it suits
Standard$4,000 / domain / yearAdvisors who need three lease-model configurations and a clipboard summary
Pro$10,000 / domain / yearConsultants who send CSV deliverables to clients and want all seven configurations
EnterpriseFrom $25,000 / year, up to 3 domainsDevelopers and EPC firms who want the model on their own cost basis with attribution removed

Not ready for an annual licence? A one-time Site Screening Report ($950, one site) runs the same model for a single build without embedding anything.

Frequently Asked Questions

What is Utah's Flexible Tariff Investigation for Large Loads?

Large loads under a flexible-tariff structure now being investigated are the subject of a Utah legislative mandate requiring the Public Service Commission to investigate a flexible tariff specifically for large loads in Rocky Mountain Power's service territory — an approach that would let large customers accept curtailment or flexibility provisions in exchange for different rate terms, rather than a fixed minimum-take structure alone.

Why did Rocky Mountain Power (PacifiCorp) introduce this large-load structure?

To ensure the cost of new generation, transmission and distribution infrastructure built to serve very large customers, chiefly hyperscale data centres, is paid for by those customers rather than spread across the general rate base of residential and small commercial ratepayers.

What large data centre projects are already active in Utah?

Utah's relatively low electricity rates (residential around 13.37 cents/kWh, commercial near 10.99 cents/kWh, both well below the national average) make it an attractive baseline cost environment for large loads even before the flexible tariff investigation concludes.

Does this tariff replace Utah's standard commercial and industrial rates?

No. Utah's Flexible Tariff Investigation for Large Loads sits above Rocky Mountain Power (PacifiCorp)'s standard commercial and industrial rate schedules and applies specifically to customers that meet or exceed the large-load threshold described above. Smaller commercial and industrial loads continue to be billed under existing rate schedules.

How can I model a Utah data centre build against this tariff and other states?

The SCR AI Build Configurator applies Utah's power cost, tax treatment and large-load tariff rules alongside all other US states and Canadian provinces, so a Utah scenario can be compared line-by-line against any alternative site.