Island Street Peaking Plant
Natural gas power plant · Outagamie County, Wisconsin
Nameplate capacity
61 MW
Rank in Wisconsin
#54
of 278 plants
In service since
2004
June 2004
Details
- Primary fuel
- Natural gas
- Technology
- Natural Gas Fired Combustion Turbine
- Operator
- WPPI Energy
- County
- Outagamie County
- Generating units
- 1
- Share of state capacity
- 0.31%
- Rank among natural gas plants in Wisconsin
- #24 of 41
- EIA plant code
- 55836
Generating units
| Unit | Technology | Nameplate | Summer | Online | Status |
|---|---|---|---|---|---|
| FT81 | Natural Gas Fired Combustion Turbine | 61 MW | 55 MW | 2004 | 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
| Paddock Solar | Solar | 65 MW |
| Biron Mill | Coal | 62 MW |
| Marshfield Utilities Gas Plant | Natural gas | 60 MW |
| Jim Falls | Hydro | 60 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 61 MW solar plant and a 61 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