← Back to map

Port Washington Generating Station

Ozaukee County, Wisconsin · EIA plant ID 4040 · Operator: Wisconsin Electric Power Co
Natural gasNatural Gas Fired Combined CycleMISOBA: MISO
Nameplate1,230MWSummer 1,237 MW
Generators6in service
Net generation6,600GWh12 mo to Aug 2026
Capacity factor61%gas/coal/oil units, summer MW
Heat rate6,879Btu/kWhfossil units, electric fuel, HHV
First online2005Runs as baseload

The 12-month figures include preliminary EIA-923 months, which EIA revises. Final data runs through Dec 2025.

Monthly net generation

EIA-923, all units at the plant. Net of station use; storage can go negative.
FinalPreliminary
0200400600800GWh2001200320052007200920112013201520172019202120232025

Capacity factor by year

Net MWh ÷ (summer MW × hours), gas/coal/oil units. Each year uses that year's EIA-860 ratings; the hollow dot is the latest 12 months.
0%25%50%75%2005201020152020202560.9% · 12 mo

Heat rate by year

Electric fuel MMBtu × 1000 ÷ net MWh (Btu/kWh, HHV), fossil units only; CT + CA counted as one combined-cycle block.
5,00010,00015,000200520102015202020256,879 Btu/kWh · 12 mo
Annual data table
YearNet GWhCapacity factorHeat rate (Btu/kWh)
2001941.1——
2002747.5——
2003668.433.9%15,177
2004509.238.6%15,903
2005511.620.2%7,582
20061,172.923.3%7,270
20071,817.136.1%7,312
20081,732.620.5%7,396
20092,276.422.6%7,208
20102,655.927.8%7,263
20112,273.424.2%7,206
20124,961.751.8%6,916
20133,350.835.4%7,002
20142,943.431.1%7,005
20154,747.550.1%6,838
20165,818.256.0%6,863
20175,231.950.5%6,967
20185,829.154.7%6,853
20197,867.674.6%6,724
20208,334.476.3%6,799
20217,039.564.5%6,872
20227,695.471.0%6,860
20238,470.478.2%6,873
20247,547.369.5%6,906
20257,260.867.0%6,874

Generators

EIA-860 (annual) with EIA-860M updates through Sep 2026. EIA-923 reports generation by plant, prime mover and fuel, not by unit, so unit-level output isn't shown.
Gen IDTechnologyPrime moverNameplate MWSummer MWOnlineStatusPlanned retirementOEM / model
1CT1Natural Gas Fired Combined CycleCT173.1178.2May 2008Operating—coming soon
1CT2Natural Gas Fired Combined CycleCT173.1178.8May 2008Operating—coming soon
2CT1Natural Gas Fired Combined CycleCT173.1174.8Jul 2005Operating—coming soon
2CT2Natural Gas Fired Combined CycleCT173.1174.9Jul 2005Operating—coming soon
ST1Natural Gas Fired Combined CycleCA268.6265.1May 2008Operating—coming soon
ST2Natural Gas Fired Combined CycleCA268.6264.7Jul 2005Operating—coming soon
1ANatural Gas Fired Combined CycleCC545545planned May 2005not_current—coming soon
2ANatural Gas Fired Combined CycleCC545545planned May 2008not_current—coming soon
1Conventional Steam CoalST8065Oct 1935Retired Sep 2004—coming soon
2Conventional Steam CoalST8080Oct 1943Retired Sep 2004—coming soon
3Conventional Steam CoalST8080Oct 1948Retired Sep 2004—coming soon
4Conventional Steam CoalST8080Aug 1949Retired Jan 2003—coming soon
6Petroleum LiquidsGT19.617Jun 1969Retired Jan 2003—coming soon

Owner / operator

Operator: Wisconsin Electric Power Co. Ownership shares by in-service nameplate MW (EIA-860 Schedule 4; units not listed there are wholly owned by the operator).
We Power100.0%1,230 MW

Nearby plants

Within 80 km.
Jackson Solar WI, LLC8 MW19.8 km
Lime Kiln Solar, LLC—20 km
Onion River150 MW24.1 km
Washington County2 MW24.2 km
Regal Ware2 MW25.4 km
Germantown - Rockfield Rd Solar WI, LLC—25.5 km