Nameplate capacity
1.5 MW
Rank in Iowa
#291
of 305 plants
In service since
1941
December 1941
Details
- Primary fuel
- Other
- Technology
- Petroleum Liquids
- Operator
- City of McGregor- (IA)
- County
- Clayton County
- Generating units
- 2
- Share of state capacity
- 0.01%
- Rank among other plants in Iowa
- #88 of 90
- EIA plant code
- 1163
Generating units
| Unit | Technology | Nameplate | Summer | Online | Status |
|---|---|---|---|---|---|
| 1 | Petroleum Liquids | 1.2 MW | 1.2 MW | 1977 | Operating |
| 2 | Petroleum Liquids | 0.3 MW | 0.3 MW | 1941 | Operating |
Nameplate is the maximum rated output; summer capacity is what the unit can reliably deliver on a hot day, which is typically lower.
Similarly sized plants in Iowa
| DPC Madison | Solar | 1.5 MW |
| Maple City | Solar | 1.5 MW |
| NLMU Wind | Wind | 1.5 MW |
| Story City Wind Project | Wind | 1.5 MW |
About this data
From EIA’s inventory of operable generators, May 2026 release. Capacity is nameplate — the maximum rated output of the equipment, not what the plant actually generates over a year, which depends on how often it runs. A 1.5 MW solar plant and a 1.5 MW nuclear plant have the same entry here and produce very different amounts of electricity.
“In service since” is the earliest in-service date among the units still listed, so a site rebuilt around newer equipment can read as younger than the site itself. All Iowa power plants · What Iowa actually generates