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Valley (WI) — Power plant · Gas, steam turbine · Wisconsin Electric Power CoCity of Milwaukee- Airport Expansion — Under construction · Solar · WI · 4.6 MW · 7.1 mi awaySouth Oak Creek — Filed · Gas, combustion turbine · WI · 1,181.5 MW · 13.6 mi awayRoot River Solar WI, LLC — Filed · Solar · WI · 6 MW · 14.6 mi away
  • Combustion
  • Wind & solar
  • In development
  • Under construction
  • Operating
  • 10 · 100 · 1,000 MW

Valley (WI)

Power plant · Gas, steam turbine

Key facts

Power plant · Gas, steam turbineran 15% of 2025 Operating
Capacity
Capacity: sourceEIA-860M · Open licenseMW
Commissioned
1968
Net generation, 2025
369,729 MWh
Grid
138 kV to American Transmission Co (MISO)
Location
Milwaukee County, Wisconsin

Output

Net generation MWh by year, 2001 to 2026
Fuel burned MMBtu by year, 2001 to 2026
  • Gas
  • Coal
  • Oil

Operations detail

Details

Who’s behind it

Owner
WEC Energy Group

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Technology
Gas, steam turbine source: “Natural Gas Steam Turbine”
Age
58 years since 1968
Unused energy
2,037 GWh 2025Unused energyA lead, not a guarantee: MW × hours × (1 − capacity factor) for the latest year (EIA-923), gas, coal and oil plants only. Air-permit run-hour caps, heat rate (cost to run) and capacity-market or reliability obligations can rule it out.
Heat rate
21,328 Btu/kWh 2025
All 8 attributes from EIA-860M Preliminary Monthly Electric Generator Inventory
AttributeValue
Grid
Nerc region
RFC
Report year
2025
Grid voltage kv
138
Transmission owner
American Transmission Co
Balancing authority code
MISO
Balancing authority name
Midcontinent Independent Transmission System Operator, Inc..
EPA greenhouse gas reporting (GHGRP)
EPA FRS ID
110000419299
Subparts reported
D
NAICS code
221112
Subpart PP (CO2 supply)
No
Subpart RR (geologic sequestration)
No
Subpart UU (CO2 injection)
No
Reporting year
2023
GHGRP facility ID
1006631
Eia status
By code
OP
Mw
272
Units
2
SB
Mw
2.70
Units
1
Standby mw
2.70
Status rule
some_units_idle
In service mw
274.7
Out of service mw
0
Fuel burned (MMBtu), 20257,885,731
Capacity factor, 20250.154
Heat rate (Btu/kWh), 202521,328.4
Net generation (MWh), 2025369,729
Balancing authority codeMISO

Ownership

2 companies2
CompanyRoleShareAs ofSource
Wisconsin Electric Power Co Operator EIA-860M
WEC Energy Group Owner 100.0% Dec 31, 2023 EPA GHGRP

Timeline

  • In service · EIA-860M

Around this plant

Nearby

within 15 mi
ProjectKindAwayMW
City of Milwaukee- Airport Expansion Under construction Solar 7.1 mi 4.6
South Oak Creek Filed Gas, combustion turbine 13.6 mi 1,181.5
Root River Solar WI, LLC Filed Solar 14.6 mi 6

Sources EIA-860M

Sources

  • EIA-860MOpen license · retrieved Nov 4, 2026

Attribution