Nameplate capacity
2.5 MW
Rank in Iowa
#249
of 305 plants
In service since
1968
April 1968
Details
- Primary fuel
- Other
- Technology
- Petroleum Liquids
- Operator
- Rock Rapids Municipal Utility
- County
- Lyon County
- Generating units
- 1
- Share of state capacity
- 0.01%
- Rank among other plants in Iowa
- #72 of 90
- EIA plant code
- 1181
Generating units
| Unit | Technology | Nameplate | Summer | Online | Status |
|---|---|---|---|---|---|
| 1 | Petroleum Liquids | 2.5 MW | 2.5 MW | 1968 | 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
| Gowrie | Other | 2.5 MW |
| Little Cedar | Solar | 2.5 MW |
| Brooklyn | Other | 2.3 MW |
| Brooklyn City North Plant | Other | 2.3 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 2.5 MW solar plant and a 2.5 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