Intermountain Power Project

Intermountain Power Project is a 2 GW natural gas power plant in Millard County, Utah, operated by Los Angeles Department of Water & Power. EIA-860M lists 3 generating units here. Its units entered service between 1987 and 2025.

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
1,913.2 MW
1,840 MW net summer
Generating units
3
In service
1987–2025
EIA plant ID
6481

Where it is

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County
Millard County, Utah
Coordinates
39.5097, -112.5802
Balancing authority
LDWP
Sector
Electric Utility

Units, technology and status

Operator of record
Los Angeles Department of Water & Power
Primary energy source
Natural gas
Technologies
Conventional Steam Coal, Natural Gas Fired Combined Cycle
Status
Operating

This site runs on more than one energy source. EIA-860M capacity splits: Natural gas 1 GW, Coal 820 MW. It is filed here under Natural gas, the source with the most capacity.

Every plant Los Angeles Department of Water & Power reports to EIA →

Intermountain Power Project: FAQ

Where is Intermountain Power Project?
In Millard 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 Intermountain Power Project?
2 GW of nameplate capacity across 3 units, as of the EIA-860M release for 2026-07.
Who owns Intermountain Power Project?
EIA-860M names Los Angeles Department of Water & Power 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 Intermountain Power Project LLC?
Probably, but EIA-860M does not say. The survey records a plant name and a reporting entity — Los Angeles Department of Water & Power 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 "Intermountain Power Project LLC" usually means this site. This page shows only what EIA files, and does not assert a corporate structure it cannot see.
Is Intermountain Power Project still running?
EIA-860M files it as "Operating" for 2026-07. Statuses change monthly, and this page follows the monthly release.