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179.7 MW Hydro operating in McCone, MT
179.7 MW
Nameplate Capacity
5
Generators
units
Conventional Hydroelectric
Technology
1943
Operating Since
Coordinates
48.0122, -106.4123
County
McCone, MT
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Owner data does not fully agree across sources.
EIA typically reports the operating utility, while GEM resolves to the financial owner or parent corporation. Both can be correct.
| Field | EIA | GEM | Wikidata |
|---|---|---|---|
| Operator | USACE-Omaha | US Army Corps of Engineers - Omaha District | — |
| Owner(s) | USACE-Omaha | US Army Corps of Engineers - Omaha District | — |
| Status | Operating | operating | — |
GEM identifies the owner as US Army Corps of Engineers - Omaha District
This entity is not yet in the GEM ownership database — chain unavailable.
The Fort Peck Dam is the highest of six major dams along the Missouri River, located in northeast Montana in the United States, near Glasgow, and adjacent to the community of Fort Peck. At 21,026 feet (6,409 m) in length and over 250 feet (76 m) in height, it is the largest hydraulically filled dam in the United States, and creates Fort Peck Lake, the fifth largest artificial lake in the U.S., more than 130 miles (210 km) long, 200 feet (61 m) deep, and it has a 1,520-mile (2,450 km) shoreline which is longer than the state of California's coastline. It lies within the Charles M. Russell National Wildlife Refuge. The dam and the 134-mile-long (216 km) lake are owned and operated by the U.S. Army Corps of Engineers and exist for the purposes of hydroelectric power generation, flood control, and water quality management.
Read more on WikipediaFort Peck is a 179.7 MW hydroelectric power plant located in McCone County, Montana. The plant began operating in 1943 and is owned and operated by USACE-Omaha. It utilizes conventional hydroelectric technology with water (WAT) as its primary fuel source. The facility consists of 5 generators.
In the most recent year of data, Fort Peck generated 751,635 MWh of electricity, achieving a capacity factor of 47.6%. The plant operates within the Western Area Power Administration UGP West balancing authority and the WECC NERC region. Fort Peck is the 6th largest of 6 hydroelectric plants in Montana, and ranks 105th out of 194 hydroelectric plants nationally.
Generated from EIA, GEM, and public data sources
Grid Region
Mountain West
Market
Bilateral Market
NERC Region
WECC — Western Electricity Coordinating Council
Balancing Authority
Western Area Power Administration UGP West (WAUW)
Grid Voltage
230.0 kV
Regulatory Status
RE — Regulated
Entity Type
Federal
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.
50.4K MWh
Latest Month
751.6K MWh
Annual Generation
47.6%
Capacity Factor
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2013
$2,294/kW
Est. Construction Cost
Total estimated cost: $412.3M
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This plant is in a bilateral market territory without organized wholesale pricing. Nodal pricing data is not 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.
Last updated 2026-03-26
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