Where is Milner Butte LFGE?

In Cassia County, Idaho (ID). 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 Milner Butte LFGE?

4 MW of nameplate capacity across 3 units, as of the EIA-860M release for 2026-07.

Who owns Milner Butte LFGE?

EIA-860M names Southern Idaho Solid Waste 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 Milner Butte LFGE LLC?

Probably, but EIA-860M does not say. The survey records a plant name and a reporting entity — Southern Idaho Solid Waste 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 "Milner Butte LFGE LLC" usually means this site. This page shows only what EIA files, and does not assert a corporate structure it cannot see.

Is Milner Butte LFGE still running?

EIA-860M files it as "Operating" for 2026-07. Statuses change monthly, and this page follows the monthly release.

Milner Butte LFGE

Milner Butte LFGE is a 4 MW biomass power plant in Cassia County, Idaho, operated by Southern Idaho Solid Waste. EIA-860M lists 3 generating units here. Its units entered service between 2018 and 2023.

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: 3.9 MW; 3.9 MW net summer
Generating units: 3
In service: 2018–2023
EIA plant ID: 63755

Where it is

Loading map…

County: Cassia County, Idaho
Coordinates: 42.4669, -114.0046
Balancing authority: IPCO
Sector: Commercial Non-CHP

Units, technology and status

Operator of record: Southern Idaho Solid Waste
Primary energy source: Biomass
Technologies: Landfill Gas
Status: Operating

Every plant Southern Idaho Solid Waste reports to EIA →

Milner Butte LFGE: FAQ

Where is Milner Butte LFGE?: In Cassia County, Idaho (ID). 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 Milner Butte LFGE?: 4 MW of nameplate capacity across 3 units, as of the EIA-860M release for 2026-07.
Who owns Milner Butte LFGE?: EIA-860M names Southern Idaho Solid Waste 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 Milner Butte LFGE LLC?: Probably, but EIA-860M does not say. The survey records a plant name and a reporting entity — Southern Idaho Solid Waste 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 "Milner Butte LFGE LLC" usually means this site. This page shows only what EIA files, and does not assert a corporate structure it cannot see.
Is Milner Butte LFGE still running?: EIA-860M files it as "Operating" for 2026-07. Statuses change monthly, and this page follows the monthly release.