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115.7 MW Sub. Coal operating in Big Horn, MT
115.7 MW
Nameplate Capacity
1
Generators
unit
Conventional Steam Coal
Technology
2006
Operating Since
Coordinates
45.7578, -107.6000
County
Big Horn, MT
Nearby Plants
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| Field | EIA | GEM | Wikidata |
|---|---|---|---|
| Operator | Heorot Power Management | Heorot Power Management | — |
| Owner(s) | Heorot Power Management | Heorot Power Management | — |
| Status | Operating | — | — |
The Hardin Generating Project is a 115.7 MW coal-fired power plant located in Big Horn County, Montana. The plant began operating in 2006 and has one generator utilizing conventional steam coal technology. It is owned and operated by Heorot Power Management. The plant's primary fuel source is subbituminous coal (SUB).
In the most recent year of data, the Hardin Generating Project produced 481,001 MWh of electricity, achieving a capacity factor of 47.4%. The plant operates within the NorthWestern Energy (NWMT) balancing authority and is part of the Western Electricity Coordinating Council (WECC) NERC region. The Hardin Generating Project is the second-largest coal plant in Montana, and ranks 74th out of 75 coal plants nationally.
Generated from EIA, GEM, and public data sources
Grid Region
Mountain West
Market
WEIM Participant
NERC Region
WECC — Western Electricity Coordinating Council
Balancing Authority
NorthWestern Energy (NWMT) (NWMT)
Grid Voltage
115.0 kV
Regulatory Status
NR — Non-Regulated
Entity Type
Independent Power Producer
Sector
IPP Non-CHP
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.
49.7K MWh
Latest Month
481.0K MWh
Annual Generation
47.4%
Capacity Factor
Forward-looking generation outlook with probabilistic ranges across weather, demand, and policy scenarios. Powered by InfraSure's generation modeling stack.
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CO₂ Intensity
3317 lb/MWh
NOx
1 lb/MWh
SO₂
1 lb/MWh
CH₄
0.324 lb/MWh
N₂O
0.047 lb/MWh
Capacity Factor
43.0%
Annual Net Gen
435 GWh
CO₂eq
3339 lb/MWh
Subregion
WECC Northwest
No financial data available for this plant.
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This plant's balancing authority participates in CAISO's Western Energy Imbalance Market (WEIM). Direct nodal pricing data is not yet available.
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.
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