Fort Peck
Hydro power plant in McCone County, Montana. 162.4 MW of nameplate capacity across 4 generators, operated by USACE-Omaha.
Also known as Fort Peck Power Plant · EIA plant 6623
Analyst: free account, 1 question a day.
Key facts
- Capacity
- 162.4 MWNameplate
- Generators
- 4 operatingEIA-860M, August 2026
- Operating since
- July 1943First generator online
- Operator
- USACE-OmahaEIA operator ID 19635
- Grid
- WAUWBalancing authority WAUW
- Price nodes
- 1 SPP nodeResource nodes with prices
- Location
- McCone County, MT48.0122, −106.4123
- EIA plant ID
- 6623EIA plant page
Data as of EIA-860M August 2026 (published 2026-09-24). Capacity is nameplate, not live output.
How much power Fort Peck produces
Free · EIA-923Net generation, 2025
757 GWh
756,945 MWh, final
Capacity factor, 2025
48.1%
2024: 47.6%
January to July 2026
Not reported
Provisional. 0 of 7 months reported
Range, 2015 to 2025
0.7–1.2
TWh a year. Low 2023, high 2018
| Year | Net generation, MWh | Capacity factor | Months reported |
|---|---|---|---|
| 2000 | 924,319 | Not reported | 12 of 12 |
| 2001 | 672,931 | Not reported | 12 of 12 |
| 2002 | 747,042 | Not reported | 12 of 12 |
| 2003 | 819,292 | Not reported | 12 of 12 |
| 2004 | 692,882 | Not reported | 12 of 12 |
| 2005 | 564,077 | Not reported | 12 of 12 |
| 2006 | 704,920 | Not reported | 12 of 12 |
| 2007 | 609,731 | Not reported | 12 of 12 |
| 2008 | 573,386 | Not reported | 12 of 12 |
| 2009 | 584,252 | Not reported | 12 of 12 |
| 2010 | 584,252 | 36.0% | 12 of 12 |
| 2011 | 1,224,036 | 75.4% | 12 of 12 |
| 2012 | 1,128,780 | 69.3% | 12 of 12 |
| 2013 | 570,460 | 35.1% | 12 of 12 |
| 2014 | 732,827 | 45.1% | 12 of 12 |
| 2015 | 753,359 | 46.4% | 12 of 12 |
| 2016 | 764,592 | 47.0% | 12 of 12 |
| 2017 | 805,283 | 49.6% | 12 of 12 |
| 2018 | 1,239,865 | 76.4% | 12 of 12 |
| 2019 | 1,205,315 | Not reported | 12 of 12 |
| 2020 | 1,105,657 | 70.0% | 12 of 12 |
| 2021 | 920,418 | 58.5% | 12 of 12 |
| 2022 | 756,133 | 48.0% | 12 of 12 |
| 2023 | 701,188 | 44.5% | 12 of 12 |
| 2024 | 751,635 | 47.6% | 12 of 12 |
| 2025 | 756,945 | 48.1% | 12 of 12 |
| 2026 (provisional, partial year) | Not reported | Not reported | 0 of 7 |
* 2026 covers January to July and is provisional. Capacity factor is net generation divided by nameplate capacity times the hours of each reported month.
Power prices and basis
Free account · SPPEmissions
Free · EPA CAMPDNo EPA emissions units are linked to this plant.
Water use
Free · EIA-923 cooling, USGSNo EIA cooling-water record for this plant in 2024. Plants without steam cooling, such as wind, solar and batteries, do not report cooling water.
Generators
Free · EIA-860M| Generator | Technology | Nameplate MW | Online since |
|---|---|---|---|
| 1 | Conventional Hydroelectric | 41.2 | July 1943 |
| 3 | Conventional Hydroelectric | 41.2 | December 1951 |
| 4 | Conventional Hydroelectric | 40.0 | June 1961 |
| 5 | Conventional Hydroelectric | 40.0 | June 1961 |
Ownership and offtake
ProOwnership and offtake are part of Pro
Owners and their shares, parent companies, and power purchase agreements with their buyers. EIA-860M lists USACE-Omaha as the operator, which is not always the owner.
Modeled data
ProPro adds modeled values for this plant. Everything above stays free.
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Power plants near Fort Peck
More plants operated by USACE-Omaha
Questions about Fort Peck
How much power does Fort Peck produce?
Fort Peck reported 756,945 MWh (757 GWh) of net generation in 2025, a 48.1% capacity factor on 162.4 MW of nameplate capacity.
Where is Fort Peck?
Fort Peck is in McCone County, Montana, at 48.0122, −106.4123. It is in the Western Area Power Administration UGP West balancing area (WAUW).
Who operates Fort Peck?
EIA-860M for August 2026 lists USACE-Omaha as the operator (EIA operator ID 19635). The operator is not always the owner.
When did Fort Peck start operating?
Its first generator began operating in July 1943, according to EIA-860M.
Does InfraMap have power prices for Fort Peck?
Yes. InfraMap has SPP day-ahead and real-time prices at 1 price node linked to Fort Peck, with the hub price and node-to-hub basis. Prices are free with an InfraMap account; pricing node names are part of InfraMap Pro.
Sources
- EIA-860 2025 (final) and EIA-860M August 2026: plant, generators, capacity, operator and location
- EIA-923 monthly net generation, 2000 to July 2026 (2026 provisional)
- SPP day-ahead and real-time prices; node and hub assignments as of 2026-10-05
- Plant names from OpenStreetMap, © OpenStreetMap contributors (ODbL)
Page updated 2026-10-04 from the InfraMap data build. Methodology · Data sources · EIA plant page