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1229.6 MW Natural Gas operating in Ozaukee, WI
1,229.6 MW
Nameplate Capacity
6
Generators
units
Natural Gas Fired Combined Cycle
Technology
2005
Operating Since
Coordinates
43.3842, -87.8689
County
Ozaukee, WI
Nearby Plants
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| Field | EIA | GEM | Wikidata |
|---|---|---|---|
| Operator | Wisconsin Electric Power Co | — | — |
| Owner(s) | We Power | — | — |
| Status | Operating | — | — |
Port Washington Generating Station is an intermediate-load, natural gas fired, electrical power station located on Lake Michigan in Port Washington, Wisconsin. The natural gas facility replaced an older coal-fired station in the early 2000s. This station has two units with the first being completed in July 2005 and produces 545 MW. The second unit was completed in May 2008 and also produces 545 MW.
Read more on WikipediaPort Washington Generating Station is a 1229.6 MW natural gas-fired combined cycle power plant located in Ozaukee County, Wisconsin. The plant began operating in 2005 and consists of 6 generators. It is owned and operated by Wisconsin Electric Power Co. The plant is the second-largest of 19 power plants in Wisconsin, and ranks 108th out of 945 plants nationally.
The plant operates within the Midcontinent Independent Transmission System Operator (MISO) balancing authority and the ReliabilityFirst Corporation (RFC) NERC region. In the most recent year with available data, the plant generated 7,260,771 MWh, achieving a capacity factor of 67.3%. Financial data indicates an installed cost of $13.61 per kW, according to FERC filings.
Generated from EIA, GEM, and public data sources
ISO/RTO
MISO
Market
ISO/RTO Member
NERC Region
RFC
Balancing Authority
Midcontinent Independent Transmission System Operator, Inc.. (MISO)
Grid Voltage
138.0 kV
Regulatory Status
RE — Regulated
Entity Type
Investor-Owned Utility
Sector
Electric Utility
Monthly net generation as reported to EIA-923 — useful for historical context. Confidence varies sharply by fuel type; the band above and the “About this data” button explain the caveats specific to this plant and how InfraSure’s in-house model handles them.
656.3K MWh
Latest Month
7.3M MWh
Annual Generation
67.3%
Capacity Factor
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CO₂ Intensity
820 lb/MWh
NOx
0.067 lb/MWh
SO₂
0.004 lb/MWh
CH₄
0.015 lb/MWh
N₂O
0.002 lb/MWh
Capacity Factor
78.6%
Annual Net Gen
8470 GWh
CO₂eq
821 lb/MWh
Subregion
RFC West
Combined cycle · Wisconsin Electric Power Company · Data from 2021–2024
$13/kW
Installed Cost
$0/kW
Annual CapEx
$39.7/MWh
Operating Cost
Annual Capital & Operating Expenses
Cumulative Installed Cost
Per-Unit Cost Trends
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Market Position
ISO/RTO Market
MISO
LMP Node
WEC.PORTWA1ST0
Pricing Hub
MICHIGAN.HUB
Location Type
Generation Node
Node Source
EIA-860 direct report
No wholesale contracts disclosed in FERC EQR for this plant.
FERC EQR captures bilateral wholesale energy + capacity contracts ≥$1M/yr filed quarterly by jurisdictional sellers — covers renewable PPAs, thermal energy sales agreements, capacity contracts, and tolling agreements alike. Many plants don't appear: regulated-utility output flows to ratepayers via cost-of-service rather than bilateral contracts; small projects fall below the filing threshold; tax-equity-financed renewables route offtake to investors not utilities; merchant plants sell into ISO clearing markets without bilateral contracts. News-extracted buyer facts (below) may surface contracts disclosed only through announcements.
Last updated 2026-03-26
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