Hampton Substation Energy Storage
Battery storage power plant · Franklin County, Iowa
Nameplate capacity
1.8 MW
Rank in Iowa
#267
of 305 plants
In service since
2022
November 2022
Details
- Primary fuel
- Battery storage
- Technology
- Batteries
- Operator
- Corn Belt Power Coop
- County
- Franklin County
- Generating units
- 1
- Share of state capacity
- 0.01%
- Rank among battery storage plants in Iowa
- #3 of 4
- EIA plant code
- 67948
Generating units
| Unit | Technology | Nameplate | Summer | Online | Status |
|---|---|---|---|---|---|
| MP1 | Batteries | 1.8 MW | 1.4 MW | 2022 | 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
| Earlville | Other | 1.8 MW |
| Eastern Iowa Solar | Solar | 1.8 MW |
| Roseman | Wind | 1.8 MW |
| Wapsie Valley Creamery Back Up Generator | Other | 1.8 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 1.8 MW solar plant and a 1.8 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