Nameplate capacity
7.2 MW
Rank in Iowa
#174
of 306 plants
In service since
1951
April 1951
Details
- Primary fuel
- Other
- Technology
- Petroleum Liquids
- Operator
- Cascade Municipal Utilities
- County
- Dubuque County
- Generating units
- 5
- Share of state capacity
- 0.03%
- Rank among other plants in Iowa
- #36 of 95
- EIA plant code
- 1129
Generating units
| Unit | Technology | Nameplate | Summer | Online | Status |
|---|---|---|---|---|---|
| 2 | Petroleum Liquids | 2.0 MW | 1.9 MW | 1971 | Standby/Backup: available for service but not normally used |
| 6 | Petroleum Liquids | 2.0 MW | 1.9 MW | 2020 | Standby/Backup: available for service but not normally used |
| 3A | Petroleum Liquids | 1.8 MW | 1.8 MW | 1998 | Standby/Backup: available for service but not normally used |
| 1 | Petroleum Liquids | 0.7 MW | 0.7 MW | 1957 | Standby/Backup: available for service but not normally used |
| 4 | Petroleum Liquids | 0.7 MW | 0.5 MW | 1951 | Standby/Backup: available for service but not normally used |
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
| Otter Creek Ethanol Poet - Ashton | Natural gas | 7.5 MW |
| University of Northern Iowa | Natural gas | 7.5 MW |
| State Center | Other | 7.1 MW |
| Franklin County Solar | Solar | 7.0 MW |
About this data
From EIA’s inventory of operable generators, August 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 7.2 MW solar plant and a 7.2 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