- Clean firm
- Operating
- 10 · 100 · 1,000 MW
Map
- Clean firm
- Operating
Oahe: location. Basemap: Protomaps, © OpenStreetMap contributors, ODbL.
Oahe
Power plant · Hydro
Key facts
Power plant · Hydroran 29% of 2025 Operating- Capacity
- Capacity: sourceEIA-860M · Open licenseMW
- Commissioned
- 1962
- Net generation, 2025
- 2,013,516 MWh
- Grid
- 230 kV, 115 kV to WAPA-- Western Area Power Administration (SWPP)
- Location
- Hughes County, South Dakota
- Operated by
- USACE-OmahaSourceEIA-860M Preliminary Monthly Electric Generator Inventory
Operations
- Net generation, 2025
- 2,013,516
MWh - Fuel burned, 2025
- 6,870,117
MMBtu - Capacity factor, 2025
- 29.2
% - Heat rate, 2025
- Not stated
| Year | Net generation (MWh) | Fuel burned (MMBtu) | Capacity factor | Heat rate (Btu/kWh) |
|---|---|---|---|---|
| 2025 | 2,013,516 | 6,870,117 | 29.2% | — |
| 2024 | 2,188,759 | 7,468,045 | 31.7% | — |
| 2023 | 2,050,154 | 6,995,125 | 29.8% | — |
| 2022 | 2,031,443 | 6,931,284 | 29.5% | — |
| 2021 | 2,409,539 | 21,309,962 | 35.0% | — |
| 2020 | 2,798,038 | 24,530,396 | 40.5% | — |
| 2019 | 4,185,392 | 37,270,915 | 60.8% | — |
| 2018 | 3,345,807 | 30,460,227 | 48.6% | — |
| 2017 | 2,621,907 | 24,155,629 | 38.1% | — |
| 2016 | 2,000,533 | 18,468,920 | 29.0% | — |
| 2015 | 2,324,635 | 21,663,273 | 33.8% | — |
| 2014 | 2,792,318 | 26,554,944 | 40.6% | — |
| 2013 | 1,901,317 | 18,140,465 | 27.6% | — |
| 2012 | 2,902,497 | 27,620,162 | 42.0% | — |
| 2011 | 3,329,163 | 32,346,148 | 48.4% | — |
| 2010 | 2,499,765 | 24,387,708 | 36.3% | — |
| 2009 | 1,851,156 | 18,067,282 | 26.9% | — |
| 2008 | 1,139,067 | 11,224,367 | 16.5% | — |
| 2007 | 1,074,842 | 10,623,739 | 15.6% | — |
| 2006 | 1,509,897 | 14,976,667 | 21.9% | — |
| 2005 | 1,350,044 | 13,499,090 | 19.6% | — |
| 2004 | 1,591,281 | 15,947,818 | 23.1% | — |
| 2003 | 1,960,315 | 20,075,586 | 28.5% | — |
| 2002 | 2,054,157 | 20,896,939 | 29.8% | — |
| 2001 | 1,620,669 | 16,746,373 | 23.5% | — |
How these are worked out
Net generation and fuel burned are the monthly figures EIA publishes in its bulk electricity file, from the plant's Form 923 reports; a year is the sum of its months. Capacity factor is a full year's net generation over today's nameplate capacity times the hours in that year (8,784 in a leap year), so a plant uprated or partly retired since reads against its current size; heat rate is fuel burned over net generation, for plants that burn fuel. A year with fewer than twelve months stated has no capacity factor, and a value outside the plausible range is left blank rather than shown. By month, the charts apply the same rules to each month's own hours and fuel.
Sources
3 sourcesSources
- EIA-860M Preliminary Monthly Electric Generator Inventory
- Global Energy Monitor — Global Integrated Power Tracker (unit-level power plants, eight technologies, all statuses)Global Integrated Power Tracker, Global Energy Monitor, September 2026 release (https://globalenergymonitor.org/projects/global-integrated-power-tracker), CC BY 4.0. Modified by Inframation: TransitionZero-sourced rows removed; statuses and technologies mapped to Inframation's vocabulary; figures aggregated. Copyright © Global Energy Monitor. Global Integrated Power Tracker, September 2026 release. Distributed under a Creative Commons Attribution 4.0 International License.
- EIA Open Data bulk file — Electricity (ELEC.zip; monthly plant net generation and fuel consumption since 2001)Source: U.S. Energy Information Administration, Electricity bulk data (Form EIA-923 monthly plant series)