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51 MW Natural Gas Fired Combustion Turbine (50 MW) + Petroleum Liquids (1 MW) operating in Osceola, MI — Midcontinent Independent Transmission System Operator, Inc..
51 MW
Nameplate Capacity
3
Generators
units
Hybrid (2)
Technology
Natural Gas Fired Combustion Turbine + Petroleum Liquids
1993
Operating Since
Coordinates
43.8393, -85.4253
County
Osceola, MI
Nearby Plants
| Field | EIA | GEM | Wikidata |
|---|---|---|---|
| Operator | Wolverine Power Supply Coop | — | — |
| Owner(s) | Wolverine Power Supply Coop | — | — |
| Status | Operating | — | — |
The George Johnson plant is a 51 MW hybrid power plant located in Osceola County, Michigan. The plant, which began operating in 1993, is owned and operated by Wolverine Power Supply Cooperative. The facility utilizes three generators firing primarily natural gas, with petroleum liquids also listed as a fuel. It is connected to the Midcontinent Independent Transmission System Operator, Inc. (MISO) balancing authority and is situated within the ReliabilityFirst Corporation (RFC) NERC region.
In the most recent year with available data, the George Johnson plant generated 34,032 MWh of electricity, achieving a capacity factor of 7.6%. Based on total capacity, the plant is ranked 33rd out of 62 power plants in Michigan and 1099th out of 1963 plants nationally.
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
69.0 kV
Regulatory Status
RE — Regulated
Entity Type
Cooperative
Sector
Electric Utility
2.6K MWh
Latest Month
34.0K MWh
Annual Generation
7.6%
Capacity Factor
CO₂ Intensity
1320 lb/MWh
NOx
4 lb/MWh
SO₂
0.036 lb/MWh
CH₄
0.025 lb/MWh
N₂O
0.002 lb/MWh
Capacity Factor
4.3%
Annual Net Gen
19 GWh
CO₂eq
1321 lb/MWh
Subregion
RFC Michigan
2013
$965/kW
Est. Construction Cost
Total estimated cost: $49.2M
Market Position
ISO/RTO Market
MISO
LMP Node
—
Pricing Hub
MICHIGAN.HUB
Node Source
OSM spatial match
Last updated 2026-03-26
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