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- Clean firm
- Operating
- 10 · 100 · 1,000 MW
Map
- Clean firm
- Operating
Garrison: location and 2 exact-grade projects within 25 km. Basemap: Protomaps, © OpenStreetMap contributors, ODbL.
Garrison
Power plant · Hydro
Key facts
Power plant · Hydroran 39% of 2025 Operating- Capacity
- Capacity: sourceEIA-860M · Open licenseMW
- Commissioned
- 1956
- Net generation, 2025
- 2,004,511 MWh
- Grid
- 230 kV, 115 kV to WAPA-- Western Area Power Administration (SWPP)
- Location
- Mercer County, North Dakota
- Operated by
- USACE-OmahaSourceEIA-860M Preliminary Monthly Electric Generator Inventory
Output
Details
Who’s behind it
No companies named in filings yet.
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- Technology
- Hydro source: “Conventional Hydroelectric”
- Age
- 70 years since 1956
All 6 attributes from EIA-860M Preliminary Monthly Electric Generator Inventory
| Attribute | Value |
|---|---|
| Gem |
|
| Grid |
|
| Fuel burned (MMBtu), 2025 | 6,839,392 |
| Capacity factor, 2025 | 0.392 |
| Net generation (MWh), 2025 | 2,004,511 |
| Balancing authority code | SWPP |
Timeline
- In service · EIA-860M
Sources
4 sourcesSources EIA-860M · GEM · EIA · EIA-860M Preliminary Monthly Electric Generator Inventory
Sources
- 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)
- EIA-860M Preliminary Monthly Electric Generator Inventory
Around this plant
Nearby
within 25 km| Project | Kind | Away | MW |
|---|---|---|---|
| Garrison Butte Wind, LLC Postponed | Wind | 18.4 km | 150 |
| Discovery Wind, LLC Postponed | Wind | 23.5 km | 400 |