Where is ASSC Digester Power Plant?

In Iowa County, Iowa (IA). 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 ASSC Digester Power Plant?

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

Who owns ASSC Digester Power Plant?

EIA-860M names Amana Society Service Co 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 ASSC Digester Power Plant LLC?

Probably, but EIA-860M does not say. The survey records a plant name and a reporting entity — Amana Society Service Co 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 "ASSC Digester Power Plant LLC" usually means this site. This page shows only what EIA files, and does not assert a corporate structure it cannot see.

Is ASSC Digester Power Plant still running?

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

ASSC Digester Power Plant

ASSC Digester Power Plant is a 3 MW biomass power plant in Iowa County, Iowa, operated by Amana Society Service Co. EIA-860M lists 4 generating units here, inside MISO. Its units entered service in 2009.

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: 2.8 MW; 2.8 MW net summer
Generating units: 4
In service: 2009
EIA plant ID: 70332

Where it is

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County: Iowa County, Iowa
Coordinates: 41.8137, -91.9863
Balancing authority: MISO
Sector: Electric Utility

Units, technology and status

Operator of record: Amana Society Service Co
Primary energy source: Biomass
Technologies: Other Waste Biomass
Status: Operating (3) · Out of service and NOT expected to return to service in next calendar year (1)

Every plant Amana Society Service Co reports to EIA →

ASSC Digester Power Plant: FAQ

Where is ASSC Digester Power Plant?: In Iowa County, Iowa (IA). 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 ASSC Digester Power Plant?: 3 MW of nameplate capacity across 4 units, as of the EIA-860M release for 2026-07.
Who owns ASSC Digester Power Plant?: EIA-860M names Amana Society Service Co 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 ASSC Digester Power Plant LLC?: Probably, but EIA-860M does not say. The survey records a plant name and a reporting entity — Amana Society Service Co 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 "ASSC Digester Power Plant LLC" usually means this site. This page shows only what EIA files, and does not assert a corporate structure it cannot see.
Is ASSC Digester Power Plant still running?: EIA-860M files it as "Operating" for 2026-07. Statuses change monthly, and this page follows the monthly release.