How many biomass power plants are in Iowa?

6, with 23 MW of nameplate capacity between them, spread over 4 counties. That is the EIA-860M operating count for 2026-07.

Is there a map of Iowa biomass power plants?

Yes — the map above. Each dot is one biomass power plant, sized by nameplate capacity and placed at the coordinates EIA files for it.

Which is the largest biomass power plant in Iowa?

Metro Methane Recovery Facility, at 11 MW. The table is sorted largest first, so the rest follow it.

Is there a biomass power plant near me in Iowa?

The county roll-up below groups every plant by county, which is the quickest way to find the one closest to a given town.

Which grid operator runs Iowa's biomass power plants?

Most of them sit inside MISO, according to the balancing-authority code EIA files against each plant. Live conditions for that market are on this site.

How current is this, and what is left out?

EIA-860M for 2026-07. Wood and wood waste, landfill gas, municipal solid waste and other waste biomass. Plants below 1 MW are not surveyed by EIA and so are absent; retirements and additions after 2026-07 arrive with the next monthly release.

Biomass Power Plants in Iowa

Every operating biomass power plant in Iowa on EIA-860M for 2026-07: 6 plants, 25 generating units and 23 MW of nameplate capacity across 4 counties, most of it inside MISO.

As of 2026-07 (inventory dated 2026-07-31) · EIA-860M Preliminary Monthly Electric Generator Inventory · eia.gov/…/july_generator2026.xlsx · eia.gov/…/eia860m

Plants: 6; 25 generating units
Nameplate capacity: 23 MW
Counties: 4
Grid operator: MISO; covers most of these plants

Map of biomass power plants in Iowa

Every one of the 6 plants is drawn at the coordinate EIA files for it.

Loading map…

Biomass · 6

List of biomass power plants in Iowa

Sort by any column. Capacity is nameplate, summed across every generating unit EIA lists at the site.

biomass power plants in Iowa

Metro Methane Recovery FacilityLandfill Gas	WM Renewable Energy LLC	Polk	11.2	11	1998	Operating
Lake Mills Gas RecoveryLandfill Gas	WM Renewable Energy LLC	Winnebago	4	5	2006	Operating
Des Moines Wastewater Reclamation FacOther Waste Biomass	Des Moines Metro WRF	Polk	2.8	2	2015	Standby/Backup
ASSC Digester Power PlantOther Waste Biomass	Amana Society Service Co	Iowa	2.8	4	2009	Operating
Davenport Water Pollution Control PlantOther Waste Biomass	Davenport, City of - (IA)	Scott	1.6	2	1995	Operating
AgriReNewOther Waste Biomass	AgriReNew	Scott	1	1	2013	Operating

Largest biomass power plants in Iowa

1Metro Methane Recovery FacilityPolk County, Iowa11.2 MW
2Lake Mills Gas RecoveryWinnebago County, Iowa4 MW
3Des Moines Wastewater Reclamation FacPolk County, Iowa2.8 MW
4ASSC Digester Power PlantIowa County, Iowa2.8 MW
5Davenport Water Pollution Control PlantScott County, Iowa1.6 MW
6AgriReNewScott County, Iowa1 MW

Biomass power plants by county in Iowa

The county EIA files against each plant. It is the fastest way to find the plant nearest a given town.

County	Plants	Nameplate MW
Polk	2	14
Winnebago	1	4
Iowa	1	2.8
Scott	2	2.6

Biomass Power Plants in Iowa: FAQ

How many biomass power plants are in Iowa?: 6, with 23 MW of nameplate capacity between them, spread over 4 counties. That is the EIA-860M operating count for 2026-07.
Is there a map of Iowa biomass power plants?: Yes — the map above. Each dot is one biomass power plant, sized by nameplate capacity and placed at the coordinates EIA files for it.
Which is the largest biomass power plant in Iowa?: Metro Methane Recovery Facility, at 11 MW. The table is sorted largest first, so the rest follow it.
Is there a biomass power plant near me in Iowa?: The county roll-up below groups every plant by county, which is the quickest way to find the one closest to a given town.
Which grid operator runs Iowa's biomass power plants?: Most of them sit inside MISO, according to the balancing-authority code EIA files against each plant. Live conditions for that market are on this site.
How current is this, and what is left out?: EIA-860M for 2026-07. Wood and wood waste, landfill gas, municipal solid waste and other waste biomass. Plants below 1 MW are not surveyed by EIA and so are absent; retirements and additions after 2026-07 arrive with the next monthly release.