Post Falls
Hydro power plant in Kootenai County, Idaho. 8.8 MW of nameplate capacity across 4 generators, operated by Avista Corp.
Also known as Post Falls Dam Powerhouse · EIA plant 835
Analyst: free account, 1 question a day.
Key facts
- Capacity
- 8.8 MWNameplate
- Generators
- 4 operatingEIA-860M, August 2026
- Operating since
- July 1906First generator online
- Operator
- Avista CorpEIA operator ID 20169
- Grid
- AVABalancing authority AVA
- Price nodes
- None linkedNo verified ISO node
- Location
- Kootenai County, ID47.7033, −116.9539
- EIA plant ID
- 835EIA plant page
Data as of EIA-860M August 2026 (published 2026-09-24). Capacity is nameplate, not live output.
How much power Post Falls produces
Free · EIA-923Net generation, 2025
60.4 GWh
60,420 MWh, final
Capacity factor, 2025
47.6%
2024: 54.2%
January to July 2026
Not reported
Provisional. 0 of 7 months reported
Range, 2015 to 2025
48.0–88.4
GWh a year. Low 2023, high 2016
| Year | Net generation, MWh | Capacity factor | Months reported |
|---|---|---|---|
| 2000 | 174,378 | Not reported | 12 of 12 |
| 2001 | 67,271 | Not reported | 12 of 12 |
| 2002 | 87,468 | Not reported | 12 of 12 |
| 2003 | 80,447 | Not reported | 12 of 12 |
| 2004 | 96,356 | Not reported | 12 of 12 |
| 2005 | 86,653 | Not reported | 12 of 12 |
| 2006 | 96,841 | Not reported | 12 of 12 |
| 2007 | 83,374 | Not reported | 12 of 12 |
| 2008 | 85,518 | Not reported | 12 of 12 |
| 2009 | 84,350 | Not reported | 12 of 12 |
| 2010 | 90,272 | 71.1% | 12 of 12 |
| 2011 | 90,452 | 71.2% | 12 of 12 |
| 2012 | 82,967 | 65.1% | 12 of 12 |
| 2013 | 84,904 | 66.8% | 12 of 12 |
| 2014 | 83,872 | 66.0% | 12 of 12 |
| 2015 | 73,223 | 57.6% | 12 of 12 |
| 2016 | 88,444 | 69.4% | 12 of 12 |
| 2017 | 79,120 | 62.3% | 12 of 12 |
| 2018 | 72,493 | 57.1% | 12 of 12 |
| 2019 | 68,660 | 54.1% | 12 of 12 |
| 2020 | 77,008 | 60.5% | 12 of 12 |
| 2021 | 65,021 | 51.2% | 12 of 12 |
| 2022 | 74,311 | 58.5% | 12 of 12 |
| 2023 | 47,966 | 37.8% | 12 of 12 |
| 2024 | 69,055 | 54.2% | 12 of 12 |
| 2025 | 60,420 | 47.6% | 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 accountNo verified ISO price node is linked to this plant, or its price history could not load.
Emissions
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 |
|---|---|---|---|
| 2 | Conventional Hydroelectric | 2.2 | July 1906 |
| 3 | Conventional Hydroelectric | 2.2 | August 1906 |
| 4 | Conventional Hydroelectric | 2.2 | November 1906 |
| 5 | Conventional Hydroelectric | 2.2 | August 1908 |
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 Avista Corp as the operator, which is not always the owner.
Modeled data
ProPro adds modeled values for this plant. Everything above stays free.
300 analyst questions a month, plus MCP
Query Post Falls and 14,224 other projects from Claude or your own tools. Free accounts get 1 question a day.
Power plants near Post Falls
More plants operated by Avista Corp
Questions about Post Falls
How much power does Post Falls produce?
Post Falls reported 60,420 MWh (60.4 GWh) of net generation in 2025, a 47.6% capacity factor on 8.8 MW of nameplate capacity.
Where is Post Falls?
Post Falls is in Kootenai County, Idaho, at 47.7033, −116.9539. It is in the Avista Corporation balancing area (AVA).
Who operates Post Falls?
EIA-860M for August 2026 lists Avista Corp as the operator (EIA operator ID 20169). The operator is not always the owner.
When did Post Falls start operating?
Its first generator began operating in July 1906, according to EIA-860M.
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)
- Plant names from OpenStreetMap, © OpenStreetMap contributors (ODbL)
Page updated 2026-10-04 from the InfraMap data build. Methodology · Data sources · EIA plant page