How many battery storage projects are in Iowa?

4, with 10 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 battery storage projects?

Yes — the map above. Each dot is one battery storage project, sized by nameplate capacity and placed at the coordinates EIA files for it.

Which is the largest battery storage project in Iowa?

Deer Run Battery, at 5 MW. The table is sorted largest first, so the rest follow it.

Is there a battery storage project 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 battery storage projects?

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. EIA technology "Batteries" — grid-connected electrochemical storage of 1 MW and above. 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.

Battery Storage Projects in Iowa

Every operating battery storage project in Iowa on EIA-860M for 2026-07: 4 plants, 4 storage units and 10 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: 4; 4 generating units
Nameplate capacity: 10 MW
Counties: 4
Grid operator: MISO; covers most of these plants

Map of battery storage projects in Iowa

Every one of the 4 plants is drawn at the coordinate EIA files for it.

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Battery · 4

List of battery storage projects in Iowa

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

battery storage projects in Iowa

Deer Run BatteryBatteries	Interstate Power and Light Co	Linn	5	1	2023	Operating
Decorah BatteryBatteries	Interstate Power and Light Co	Winneshiek	2.5	1	2021	Operating
Hampton Substation Energy StorageBatteries	Corn Belt Power Coop	Franklin	1.8	1	2022	Operating
Knoxville Battery Energy StorageBatteries	MidAmerican Energy Co	Marion	1.1	1	2018	Operating

Largest battery storage projects in Iowa

1Deer Run BatteryLinn County, Iowa5 MW
2Decorah BatteryWinneshiek County, Iowa2.5 MW
3Hampton Substation Energy StorageFranklin County, Iowa1.8 MW
4Knoxville Battery Energy StorageMarion County, Iowa1.1 MW

Battery storage projects 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
Linn	1	5
Winneshiek	1	2.5
Franklin	1	1.8
Marion	1	1.1

Battery Storage Projects in Iowa: FAQ

How many battery storage projects are in Iowa?: 4, with 10 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 battery storage projects?: Yes — the map above. Each dot is one battery storage project, sized by nameplate capacity and placed at the coordinates EIA files for it.
Which is the largest battery storage project in Iowa?: Deer Run Battery, at 5 MW. The table is sorted largest first, so the rest follow it.
Is there a battery storage project 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 battery storage projects?: 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. EIA technology "Batteries" — grid-connected electrochemical storage of 1 MW and above. 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.