Valley (WI)
Milwaukee County, Wisconsin · EIA plant ID 4042 · Operator: Wisconsin Electric Power Co
Nameplate275MWSummer 267 MW
Generators3in service
Net generation305GWh12 mo to Aug 2026
Capacity factor13%gas/coal/oil units, summer MW
Heat rate8,698Btu/kWhfossil units, electric fuel, HHV
First online1968Runs as peaking
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
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.
Heat rate by year
Electric fuel MMBtu × 1000 ÷ net MWh (Btu/kWh, HHV), fossil units only; CT + CA counted as one combined-cycle block.
Annual data table
| Year | Net GWh | Capacity factor | Heat rate (Btu/kWh) |
|---|---|---|---|
| 2001 | 1,115.1 | — | — |
| 2002 | 1,148 | — | — |
| 2003 | 1,127.2 | 47.7% | 18,123 |
| 2004 | 1,155.8 | 48.7% | 17,947 |
| 2005 | 1,463 | 61.9% | 16,168 |
| 2006 | 1,294.5 | 54.7% | 14,857 |
| 2007 | 1,278.2 | 54.0% | 14,822 |
| 2008 | 1,213.7 | 51.2% | 15,161 |
| 2009 | 874.8 | 37.0% | 16,409 |
| 2010 | 775.8 | 32.8% | 17,010 |
| 2011 | 626.8 | 30.4% | 18,123 |
| 2012 | 481.9 | 21.2% | 19,235 |
| 2013 | 457 | 21.9% | 20,490 |
| 2014 | 543.2 | 26.0% | 12,838 |
| 2015 | 505.8 | 23.8% | 12,730 |
| 2016 | 444.3 | 20.8% | 9,538 |
| 2017 | 381.6 | 17.9% | 9,626 |
| 2018 | 276.1 | 11.6% | 9,946 |
| 2019 | 379.8 | 16.3% | 9,647 |
| 2020 | 443.1 | 18.8% | 9,503 |
| 2021 | 318.7 | 13.6% | 8,666 |
| 2022 | 445.6 | 19.1% | 8,675 |
| 2023 | 377.1 | 16.2% | 8,673 |
| 2024 | 425.6 | 18.2% | 8,649 |
| 2025 | 369.7 | 15.8% | 8,667 |
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 ID | Technology | Prime mover | Nameplate MW | Summer MW | Online | Status | Planned retirement | OEM / model |
|---|---|---|---|---|---|---|---|---|
| 1 | Natural Gas Steam Turbine | ST | 136 | 124.7 | Jun 1968 | Operating | — | coming soon |
| 2 | Natural Gas Steam Turbine | ST | 136 | 139.2 | Mar 1969 | Operating | — | coming soon |
| 3 | Petroleum Liquids | IC | 2.7 | 2.7 | Mar 1969 | Operating (Standby / backup) | — | 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).
| Wisconsin Electric Power Co | 100.0% | 275 MW |
Nearby plants
Within 80 km.
| FCPC Renewable Generation | retired | 1.4 km |
| MMSD Jones Island Wastewater | 31 MW | 2 km |
| ATI | 2 MW | 10.8 km |
| City of Milwaukee Landfill | 2 MW | 11.1 km |
| City of Milwaukee- Airport Expansion | — | 11.5 km |
| IKEA Oak Creek Rooftop PV System | 1 MW | 14.2 km |