- Clean firm
- Operating
- 10 · 100 · 1,000 MW
Map
- Clean firm
- Operating
Ryan: location. Basemap: Protomaps, © OpenStreetMap contributors, ODbL.
Ryan
Power plant · Hydro
Key facts
Power plant · Hydroran 78% of 2025 Operating- Capacity
- Capacity: sourceEIA-860M · Open licenseMW
- Commissioned
- 1915
- Net generation, 2025
- 377,330 MWh
- Grid
- 100 kV to NorthWestern Energy LLC - (MT) (NWMT)
- Location
- Cascade County, Montana
- Operated by
- NorthWestern Energy (MT Hydro)SourceEIA-860M Preliminary Monthly Electric Generator Inventory
Operations
- Net generation, 2025
- 377,330
MWh - Fuel burned, 2025
- 1,287,449
MMBtu - Capacity factor, 2025
- 78.0
% - Heat rate, 2025
- Not stated
| Year | Net generation (MWh) | Fuel burned (MMBtu) | Capacity factor | Heat rate (Btu/kWh) |
|---|---|---|---|---|
| 2025 | 377,330 | 1,287,449 | 78.0% | — |
| 2024 | 434,562 | 1,482,726 | 89.6% | — |
| 2023 | 486,256 | 1,659,106 | 100.6% | — |
| 2022 | 397,394 | 1,355,908 | 82.2% | — |
| 2021 | 384,498 | 3,400,500 | 79.5% | — |
| 2020 | 459,044 | 4,024,438 | 94.7% | — |
| 2019 | 484,121 | 4,311,096 | 100.1% | — |
| 2018 | 470,678 | 4,285,053 | 97.3% | — |
| 2017 | 423,168 | 3,898,647 | 87.5% | — |
| 2016 | 413,979 | 3,821,851 | 85.4% | — |
| 2015 | 447,914 | 4,174,112 | 92.6% | — |
| 2014 | 468,992 | 4,460,115 | 97.0% | — |
| 2013 | 395,440 | 3,772,894 | 81.8% | — |
| 2012 | 390,454 | 3,715,560 | 80.5% | — |
| 2011 | 440,545 | 4,280,336 | 91.1% | — |
| 2010 | 423,204 | 4,128,779 | 87.5% | — |
| 2009 | 441,426 | 4,308,317 | 91.3% | — |
| 2008 | 390,576 | 3,848,735 | 80.5% | — |
| 2007 | 384,540 | 3,800,793 | 79.5% | — |
| 2006 | 411,025 | 4,076,957 | 85.0% | — |
| 2005 | 405,654 | 4,056,134 | 83.9% | — |
| 2004 | 364,224 | 3,650,253 | 75.1% | — |
| 2003 | 347,549 | 3,559,249 | 71.9% | — |
| 2002 | 350,490 | 3,565,535 | 72.5% | — |
| 2001 | 334,015 | 3,451,377 | 69.1% | — |
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)