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56.4 MW Natural Gas operating in Baraga, MI
56.4 MW
Nameplate Capacity
3
Generators
units
Natural Gas Internal Combustion Engine
Technology
2019
Operating Since
Coordinates
46.7930, -88.6139
County
Baraga, MI
Nearby Plants
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| Field | EIA | GEM | Wikidata |
|---|---|---|---|
| Operator | Upper Michigan Energy Resources Company | Upper Michigan Energy Resources | — |
| Owner(s) | Upper Michigan Energy Resources Company | WEC Energy Group | — |
| Status | Operating | — | — |
The A.J. Mihm Generating Station is a 56.4 MW natural gas-fired power plant located in Baraga County, Michigan. The plant began operating in 2019 and consists of three natural gas internal combustion engine generators. It is owned by WEC Energy Group and operated by Upper Michigan Energy Resources Company. The plant is located within the Midcontinent Independent Transmission System Operator (MISO) balancing authority and the RFC NERC region.
In its most recent year of operation, the A.J. Mihm Generating Station produced 170,304 MWh of electricity, achieving a capacity factor of 34.4%. The plant's installed cost was $1,754.82 per kW, according to FERC data. The A.J. Mihm Generating Station is ranked as the 31st largest power plant in Michigan out of 62, and 1081st nationally out of 1963 plants.
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
RE — Regulated
Entity Type
Investor-Owned Utility
Sector
Electric Utility
Monthly net generation as reported to EIA-923 — useful for historical context. Confidence varies sharply by fuel type; the band above and the “About this data” button explain the caveats specific to this plant and how InfraSure’s in-house model handles them.
12.8K MWh
Latest Month
170.3K MWh
Annual Generation
34.4%
Capacity Factor
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CO₂ Intensity
986 lb/MWh
NOx
22 lb/MWh
SO₂
0.027 lb/MWh
CH₄
0.019 lb/MWh
N₂O
0.002 lb/MWh
Capacity Factor
42.1%
Annual Net Gen
208 GWh
CO₂eq
987 lb/MWh
Subregion
RFC West
Internal combustion · upper michigan energy resources company (pudl determined) · Data from 2019–2024
$1,770/kW
Installed Cost
$9/kW
Annual CapEx
$46.6/MWh
Operating Cost
Annual Capital & Operating Expenses
Cumulative Installed Cost
Per-Unit Cost Trends
Forward revenue, DSCR bands, and refinancing risk projected under price, demand, and policy scenarios. Powered by InfraSure's asset cashflow stack.
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Point of Interconnection
Nearest Substation
Mihm Substation · 138 kV
Substation Distance
< 10 km
Operator
Upper Michigan Energy Resources Corporation
Coord Source
OSM spatial
Market Position
ISO/RTO Market
MISO
LMP Node
—
Pricing Hub
MICHIGAN.HUB
Alt. Hub / Zone
MINN.HUB
Node Source
OSM spatial match
Substation identified. Node ID not yet resolved against ISO roster.
No wholesale contracts disclosed in FERC EQR for this plant.
FERC EQR captures bilateral wholesale energy + capacity contracts ≥$1M/yr filed quarterly by jurisdictional sellers — covers renewable PPAs, thermal energy sales agreements, capacity contracts, and tolling agreements alike. Many plants don't appear: regulated-utility output flows to ratepayers via cost-of-service rather than bilateral contracts; small projects fall below the filing threshold; tax-equity-financed renewables route offtake to investors not utilities; merchant plants sell into ISO clearing markets without bilateral contracts. News-extracted buyer facts (below) may surface contracts disclosed only through announcements.
Last updated 2026-03-14
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