Nameplate capacity
6.6 MW
Rank in Wisconsin
#130
of 278 plants
In service since
1973
May 1973
Details
- Primary fuel
- Other
- Technology
- Petroleum Liquids
- Operator
- City of Elroy - (WI)
- County
- Juneau County
- Generating units
- 3
- Share of state capacity
- 0.03%
- Rank among other plants in Wisconsin
- #16 of 36
- EIA plant code
- 4113
Generating units
| Unit | Technology | Nameplate | Summer | Online | Status |
|---|---|---|---|---|---|
| 1A | Petroleum Liquids | 2.3 MW | 2.2 MW | 2005 | Operating |
| 2A | Petroleum Liquids | 2.3 MW | 2.2 MW | 2005 | Operating |
| 5 | Petroleum Liquids | 2.0 MW | 2.2 MW | 1973 | 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 Wisconsin
| West Middleton BESS | Battery storage | 7.0 MW |
| Port Edwards Mill | Hydro | 6.7 MW |
| Caldron Falls | Hydro | 6.4 MW |
| Deertrack Park Gas Recovery | Other | 6.4 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 6.6 MW solar plant and a 6.6 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 Wisconsin power plants · What Wisconsin actually generates