Granite Mountain BESS East
Granite Mountain BESS East is a 80 MW battery storage project in Iron County, Utah, operated by Granite Mountain BESS East LLC. EIA-860M lists 1 generating unit here. Its unit entered service in 2026.
As of 2026-07 (inventory dated 2026-07-31) · EIA-860M Preliminary Monthly Electric Generator Inventory · eia.gov/…/july_generator2026.xlsx · eia.gov/…/eia860m
- Nameplate capacity
- 80 MW
- 80 MW net summer
- Generating units
- 1
- In service
- 2026
- EIA plant ID
- 69679
Where it is
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- County
- Iron County, Utah
- Coordinates
- 37.7743, -113.2486
- Balancing authority
- PACE
- Sector
- IPP Non-CHP
Units, technology and status
- Operator of record
- Granite Mountain BESS East LLC
- Primary energy source
- Battery
- Technologies
- Batteries
- Status
- Operating
Granite Mountain BESS East: FAQ
- Where is Granite Mountain BESS East?
- In Iron County, Utah (UT). The map on this page is placed at the coordinates EIA files for the plant, which locate the site rather than any individual unit.
- How big is Granite Mountain BESS East?
- 80 MW of nameplate capacity across 1 unit, as of the EIA-860M release for 2026-07.
- Who owns Granite Mountain BESS East?
- EIA-860M names Granite Mountain BESS East LLC as the reporting entity. That is the operator of record on the survey, which is not always the ultimate owner.
- Is this the same as Granite Mountain BESS East LLC?
- Probably, but EIA-860M does not say. The survey records a plant name and a reporting entity — Granite Mountain BESS East LLC here — not the project company that holds the asset. Project companies are commonly registered as an LLC carrying the plant's name, so a search for "Granite Mountain BESS East LLC" usually means this site. This page shows only what EIA files, and does not assert a corporate structure it cannot see.
- Is Granite Mountain BESS East still running?
- EIA-860M files it as "Operating" for 2026-07. Statuses change monthly, and this page follows the monthly release.