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138.1 MW Natural Gas operating in Mason, MI — Midcontinent Independent Transmission System Operator, Inc..
138.1 MW
Nameplate Capacity
2
Generators
units
Natural Gas Fired Combined Cycle
Technology
1995
Operating Since
Coordinates
43.9405, -86.4241
County
Mason, MI
Nearby Plants
| Field | EIA | GEM | Wikidata |
|---|---|---|---|
| Operator | Michigan Power Limited Partnership | Osaka Gas USA | — |
| Owner(s) | Osaka Gas USA | Osaka Gas | — |
| Status | Operating | — | — |
Michigan Power LP is a 138.1 MW natural gas-fired combined cycle power plant located in Mason County, Michigan. The plant began operating in 1995 and consists of two generators. It is owned by Osaka Gas of Japan and operated by Michigan Power Limited Partnership. The plant is located within the Midcontinent Independent Transmission System Operator (MISO) balancing authority area and the ReliabilityFirst Corporation (RFC) NERC region.
In the most recent year of data, Michigan Power LP generated 1,062,002 MWh of electricity, achieving a capacity factor of 87.6%. Based on capacity, the plant ranks 22nd out of 25 power plants in Michigan and 847th out of 945 plants nationally. Recent news coverage of the plant includes 5 articles related to industry topics, 2 related to regulatory matters, and 2 covering hazards.
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
NR — Non-Regulated
Entity Type
Independent Power Producer
Sector
IPP CHP
94.1K MWh
Latest Month
1.1M MWh
Annual Generation
87.6%
Capacity Factor
CO₂ Intensity
707 lb/MWh
NOx
0.163 lb/MWh
SO₂
0.004 lb/MWh
CH₄
0.013 lb/MWh
N₂O
0.001 lb/MWh
Capacity Factor
87.3%
Annual Net Gen
1056 GWh
CO₂eq
707 lb/MWh
Subregion
RFC Michigan
2013
$965/kW
Est. Construction Cost
Total estimated cost: $133.3M
Point of Interconnection
Nearest Substation
Michigan Power Substation · 138 kV
Substation Distance
0 km
Operator
ITC
Coord Source
OSM spatial
Market Position
ISO/RTO Market
MISO
LMP Node
CONS.MIPOWER1
Pricing Hub
MICHIGAN.HUB
Location Type
Generation Node
Node Source
Curated node match
Last updated 2026-03-14
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