PowerPlantFactsEvidence report · prepared 2 September 2026https://powerplantfacts.com/entity/58236
EIA plant 58236
Marshalltown · Marshall · IA
Marshalltown Generating Station
Operated by Interstate Power and Light Co
Published location
Where is Marshalltown Generating Station?
This locator uses the coordinates in the approved source record. It shows geographic context, not a site boundary, safety zone or property-risk area.
42.043333, -92.872778
Open the interactive map ↗Map data © OpenStreetMap contributors
Capacity is not generation. Nameplate MW describes equipment; annual MWh describes recorded output. Proposed and retired units are not added to operating capacity.
2024 monthly net generation
| Month | Net generation |
|---|---|
| 1 | 372,300 MWh |
| 2 | 238,651 MWh |
| 3 | 139,326 MWh |
| 4 | 1,885 MWh |
| 5 | 317,178 MWh |
| 6 | 327,519 MWh |
| 7 | 462,095 MWh |
| 8 | 466,973 MWh |
| 9 | 368,946 MWh |
| 10 | 141,907 MWh |
| 11 | 319,666 MWh |
| 12 | 342,502 MWh |
Operating generators
| ID | Technology | Fuel | MW | Status |
|---|---|---|---|---|
| STG1 | Natural Gas Fired Combined Cycle | NG | 260.5 | OP |
| CTG1 | Natural Gas Fired Combined Cycle | NG | 222.7 | OP |
| CTG2 | Natural Gas Fired Combined Cycle | NG | 222.7 | OP |
| PV1 | Solar Photovoltaic | SUN | 2.6 | OP |
| BESS1 | Batteries | MWH | 0.3 | OP |
Continue exploring
Similar-capacity plants in the same state
Identity, technology and limitations
EIA plant ID
58236
Sector
Electric Utility
Water source
Municipality
Data edition
2024-final