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GAS POWER PLANTS · SOLAR FARMS · BATTERY STORAGEMarshalltown Generating Station
Marshalltown Generating Station is a 709 MW operating power plant in Marshall County, Iowa, operated by Interstate Power and Light Co. Its batteries store up to 1 MWh.
Generators
Each generating unit EIA lists at this plant.
| Unit | Technology | Capacity | Status |
|---|---|---|---|
| STG1 | Natural Gas Fired Combined Cycle | 261 MW | |
| CTG1 | Natural Gas Fired Combined Cycle | 223 MW | |
| CTG2 | Natural Gas Fired Combined Cycle | 223 MW | |
| PV1 | Solar Photovoltaic | 2.6 MW | |
| BESS1 | Batteries | 0.3 MW 1 MWh |
Plant details
- Operator
- Interstate Power and Light Co
- Location
- Marshall County, Iowa
- Balancing authority
- MISO
- Sector
- Electric Utility
- Capacity
- Operating: 709 MW
- First unit online
- Apr 2017
- EIA plant ID
- 58236
Location
42.0433, -92.8728
Nearby power plants
- MarshalltownGas power plants · 189 MW · 0.7 mi
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- Vienna Wind FarmWind farms · 150 MW · 9.4 mi
- Laurel Wind FarmWind farms · 123 MW · 11.5 mi
- State CenterGas power plants, Oil-fired power plants, Solar farms · 7.1 MW · 15.0 mi
- Salt Creek WindWind farms · 169 MW · 20.3 mi
- Ivester Wind FarmWind farms · 90.8 MW · 20.4 mi
- FPL Energy Story Wind LLCWind farms · 150 MW · 20.9 mi
- Grinnell CollegeSolar farms · 3.9 MW · 21.1 mi
- Grinnell Customer Hosted SolarSolar farms · 5.0 MW · 21.6 mi
Source: U.S. Energy Information Administration, Form EIA-860M, September 2026. Planned dates are targets reported by the developer and often change. Report a problem