Nameplate capacity
408 MW
Rank in Missouri
#14
of 139 plants
In service since
1963
December 1963
Details
- Primary fuel
- Hydro
- Technology
- Hydroelectric Pumped Storage
- Operator
- Union Electric Co - (MO)
- County
- Reynolds County
- Generating units
- 2
- Share of state capacity
- 1.74%
- Rank among hydro plants in Missouri
- #1 of 8
- EIA plant code
- 2108
Generating units
| Unit | Technology | Nameplate | Summer | Online | Status |
|---|---|---|---|---|---|
| 1 | Hydroelectric Pumped Storage | 204 MW | 220 MW | 1963 | Operating |
| 2 | Hydroelectric Pumped Storage | 204 MW | 220 MW | 1963 | 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 Missouri
| Northeast (MO) | Other | 540 MW |
| St Francis Energy Facility | Natural gas | 507 MW |
| High Prairie Wind Farm | Wind | 400 MW |
| Empire Energy Center | Natural gas | 379 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 408 MW solar plant and a 408 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 Missouri power plants · What Missouri actually generates