340 MW Natural Gas operating in Wayne, MI — Midcontinent Independent Transmission System Operator, Inc..
340 MW
Nameplate Capacity
4
Generators
units
Natural Gas Fired Combustion Turbine
Technology
2002
Operating Since
Coordinates
42.1670, -83.5318
County
Wayne, MI
Nearby Plants
| Field | EIA | GEM | Wikidata |
|---|---|---|---|
| Operator | Wolverine Power Supply Coop | — | — |
| Owner(s) | Wolverine Power Supply Coop | — | — |
| Status | Operating | — | — |
The Sumpter power plant, located in Wayne County, Michigan, is a 340 MW natural gas-fired facility consisting of four combustion turbine generators. It began operating in 2002 and is owned and operated by Wolverine Power Supply Cooperative. The plant operates within the Midcontinent Independent Transmission System Operator (MISO) balancing authority and the RFC NERC region.
Sumpter's latest annual generation was 190,146 MWh, resulting in a capacity factor of 6.3%. According to available data, the plant's installed cost was $438.79 per kW, based on FERC filings. Sumpter is ranked as the 15th largest power plant in Michigan out of 25, and 609th nationally out of 945 plants.
Generated from EIA, GEM, and public data sources
NERC Region
RFC
Balancing Authority
Midcontinent Independent Transmission System Operator, Inc..
Grid Voltage
120 kV
Regulatory Status
RE
Entity Type
Cooperative
Sector
Electric Utility
2.1K MWh
Latest Month
190.1K MWh
Annual Generation
6.3%
Capacity Factor
$418/kW
Installed Cost
$53.1/MWh
Operating Cost
Wolverine Power Supply Cooperative, Inc.
Reporting Utility
Annual Capital & Operating Expenses
Cumulative Installed Cost
Per-Unit Cost Trends
Point of Interconnection
Nearest Substation
Sumpter Generating Facility Substation · 120 kV
Substation Distance
< 10 km
Operator
Wolverine Power Cooperative
Coord Source
OSM spatial
Market Position
ISO/RTO Market
MISO
LMP Node
DECO.JUDD11
Pricing Hub
MICHIGAN.HUB
Location Type
Generation Node
Node Source
EIA-860 direct report
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Last updated 2026-03-14
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