Port Washington Generating Station
Port Washington Generating Station is a natural gas plant in Ozaukee County, Wisconsin, operated by Wisconsin Electric Power Co. It ranks third by nameplate capacity among Wisconsin’s 271 power plants. It is the biggest of Wisconsin’s 38 natural gas plants. Retired units here add up to 340 MW across 5 units, taken out of service between 2003 and 2004.
Nameplate capacity, 2025
1,230 MW
1,236 MW net summer capacity
6 operable units
- Gas combined cycle1,230 MW100%
Unit by unit, 1935 to 2025
operating in 2025retiredbar height follows unit size
Unit 1 Coal steam, 80 MW, 1935–2004
Unit 2 Coal steam, 80 MW, 1943–2004
Unit 3 Coal steam, 80 MW, 1948–2004
Unit 4 Coal steam, 80 MW, 1949–2003
Unit 6 Oil-fired, 19.6 MW, 1969–2003
Unit 2CT1 Gas combined cycle, 173 MW, 2005
Unit 2CT2 Gas combined cycle, 173 MW, 2005
Unit ST2 Gas combined cycle, 269 MW, 2005
Unit 1CT1 Gas combined cycle, 173 MW, 2008
Unit 1CT2 Gas combined cycle, 173 MW, 2008
Unit ST1 Gas combined cycle, 269 MW, 2008
Among Wisconsin’s plants
Largest plants in the state by nameplate capacity, with the plants ranked next to this one.
- 1Elm Road Generating Station1,403 MW
- 2Point Beach Nuclear Plant1,311 MW
- 3Port Washington Generating Stationthis plant
- 4Columbia (WI)1,112 MW
- 5Weston946 MW
Other rankings
- All US power plants
- 214th of 14,286
- US natural gas plants
- 91st of 1,961
- Plants in the MISO (Midcontinent) balancing area
- 31st of 2,383
- Plants run by Wisconsin Electric Power Co
- 2nd of 52
- Biggest single unit, among Wisconsin’s plants
- 9th of 271
Operable units
| Unit | Technology | Nameplate | Summer | Online | Status |
|---|---|---|---|---|---|
| 2CT1 | Gas combined cycle | 173 MW | 175 MW | 2005 | Operating |
| 2CT2 | Gas combined cycle | 173 MW | 175 MW | 2005 | Operating |
| ST2 | Gas combined cycle | 269 MW | 265 MW | 2005 | Operating |
| 1CT1 | Gas combined cycle | 173 MW | 178 MW | 2008 | Operating |
| 1CT2 | Gas combined cycle | 173 MW | 179 MW | 2008 | Operating |
| ST1 | Gas combined cycle | 269 MW | 265 MW | 2008 | Operating |
Retired units
| Unit | Technology | Nameplate | In service |
|---|---|---|---|
| 4 | Coal steam | 80 MW | 1949–2003 |
| 6 | Oil-fired | 19.6 MW | 1969–2003 |
| 1 | Coal steam | 80 MW | 1935–2004 |
| 2 | Coal steam | 80 MW | 1943–2004 |
| 3 | Coal steam | 80 MW | 1948–2004 |
Who owns it
Shares are weighted by the nameplate capacity of each unit an owner holds.
| Owner | Share of capacity |
|---|---|
| We Power | 100.0% |
Grid and site
- Balancing area
- MISO (Midcontinent)
- Reliability region
- ReliabilityFirst
- Highest grid connection voltage
- 138 kV
- Water source
- Lake Michigan
- Nearest town on record
- Port Washington
- Operator type
- Utility
- Coordinates
- 43.384°N, 87.869°W
Closest plants
| Plant | Runs on | Capacity | Distance |
|---|---|---|---|
| Jackson Solar WI, LLC | Solar | 7.5 MW | 12.3 mi southwest |
| Onion River | Solar | 150 MW | 15.0 mi north |
| Washington County | Solar | 2.3 MW | 15.0 mi west |
| Regal Ware | Solar | 1.9 MW | 15.8 mi west |
| Harley-Davison Powertrain Operations | Solar | 2.2 MW | 18.0 mi southwest |
| Germantown | Oil and petroleum | 391 MW | 19.2 mi southwest |
| Omega Hills Gas Recovery | Biomass and waste | 12.8 MW | 19.7 mi southwest |
| Auburn Solar WI, LLC | Solar | 5 MW | 23.8 mi northwest |