MMSD South Shore Wastewater
Other power plant · Milwaukee County, Wisconsin
Nameplate capacity
5.1 MW
Rank in Wisconsin
#154
of 278 plants
In service since
2000
August 2000
Details
- Primary fuel
- Other
- Technology
- Other Waste Biomass
- Operator
- Milwaukee Metro Sewerage Dist
- County
- Milwaukee County
- Generating units
- 5
- Share of state capacity
- 0.03%
- Rank among other plants in Wisconsin
- #20 of 36
- EIA plant code
- 55525
Generating units
| Unit | Technology | Nameplate | Summer | Online | Status |
|---|---|---|---|---|---|
| 1 | Other Waste Biomass | 1.5 MW | 1.4 MW | 2000 | Operating |
| 1CAT | Other Waste Biomass | 0.9 MW | 0.9 MW | 2009 | Operating |
| 2CAT | Other Waste Biomass | 0.9 MW | 0.9 MW | 2010 | Operating |
| 3CAT | Other Waste Biomass | 0.9 MW | 0.9 MW | 2009 | Operating |
| 4CAT | Other Waste Biomass | 0.9 MW | 0.9 MW | 2009 | 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
| Wausau | Hydro | 5.4 MW |
| Brule | Hydro | 5.3 MW |
| Whiting | Hydro | 5.1 MW |
| Arcadia Solar | Solar | 5.0 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 5.1 MW solar plant and a 5.1 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