Hauser
Lewis and Clark County, Montana · EIA plant ID 2185 · Operator: NorthWestern Energy
7 MW planned (Conventional Hydroelectric), first expected Jun 2028 · EIA-860M
×9 MW hydro retired since 2020 (latest Jul 2025)
Nameplate17MWSummer 17 MW
Generators5in service
Net generation128GWh12 mo to Dec 2025
Capacity factor89%hydro units, summer MW
Heat rate—thermal plants only
First online1911Retirement planned Jun 2028
Monthly net generation
EIA-923, all units at the plant. Net of station use; storage can go negative.
FinalPreliminary
Capacity factor by year
Net MWh ÷ (summer MW × hours), hydro units. Each year uses that year's EIA-860 ratings; the hollow dot is the latest 12 months.
Heat rate by year
Electric fuel MMBtu × 1000 ÷ net MWh (Btu/kWh, HHV), fossil units only; CT + CA counted as one combined-cycle block.
Heat rate applies to fuel-burning (thermal) units only.
Annual data table
| Year | Net GWh | Capacity factor | Heat rate (Btu/kWh) |
|---|---|---|---|
| 2001 | 101.9 | 72.0% | — |
| 2002 | 99.3 | 66.7% | — |
| 2003 | 120 | 80.6% | — |
| 2004 | 106.7 | 71.4% | — |
| 2005 | 119.5 | 80.3% | — |
| 2006 | 127.8 | 85.8% | — |
| 2007 | 119 | 79.9% | — |
| 2008 | 129.8 | 77.8% | — |
| 2009 | 135.3 | 81.3% | — |
| 2010 | 132.3 | 79.5% | — |
| 2011 | 133.3 | 80.1% | — |
| 2012 | 129 | 77.3% | — |
| 2013 | 115.8 | 69.6% | — |
| 2014 | 111.8 | 67.2% | — |
| 2015 | 122.3 | 73.5% | — |
| 2016 | 120.4 | 72.2% | — |
| 2017 | 130.3 | 80.4% | — |
| 2018 | 118.1 | 91.1% | — |
| 2019 | 126.1 | 84.3% | — |
| 2020 | 114.1 | 71.4% | — |
| 2021 | 116 | 67.9% | — |
| 2022 | 128.2 | 90.4% | — |
| 2023 | 142.8 | 89.7% | — |
| 2024 | 134.4 | 93.9% | — |
| 2025 | 128.4 | 88.6% | — |
Generators
EIA-860 (annual) with EIA-860M updates through Sep 2026. EIA-923 reports generation by plant, prime mover and fuel, not by unit, so unit-level output isn't shown.
| Gen ID | Technology | Prime mover | Nameplate MW | Summer MW | Online | Status | Planned retirement | OEM / model |
|---|---|---|---|---|---|---|---|---|
| HAU10 | Conventional Hydroelectric | HY | 3.5 | 3.5 | Jul 2025 | Operating | — | coming soon |
| HAU11 | Conventional Hydroelectric | HY | 3.5 | 3.5 | May 2021 | Operating | — | coming soon |
| HAU3 | Conventional Hydroelectric | HY | 2.8 | 2.8 | Nov 1911 | Operating · retirement planned | Jun 2028 | coming soon |
| HAU7 | Conventional Hydroelectric | HY | 3.5 | 3.5 | May 2019 | Operating | — | coming soon |
| HAU8 | Conventional Hydroelectric | HY | 3.5 | 3.5 | Nov 2022 | Operating | — | coming soon |
| HAU12 | Conventional Hydroelectric | HY | 3.5 | 3.5 | planned Dec 2029 | Planned | — | coming soon |
| HAU9 | Conventional Hydroelectric | HY | 3.5 | 3.5 | planned Jun 2028 | Planned | — | coming soon |
| HAU1 | Conventional Hydroelectric | HY | 2.8 | 2.8 | Nov 1911 | Retired Sep 2023 | — | coming soon |
| HAU2 | Conventional Hydroelectric | HY | 3.9 | 3.9 | Nov 1911 | Retired Dec 2019 | — | coming soon |
| HAU4 | Conventional Hydroelectric | HY | 2.8 | 3 | Nov 1911 | Retired Nov 2017 | — | coming soon |
| HAU5 | Conventional Hydroelectric | HY | 2.8 | 3.6 | Nov 1911 | Retired Apr 2021 | — | coming soon |
| HAU6 | Conventional Hydroelectric | HY | 3 | 3 | Sep 1915 | Retired Jul 2025 | — | coming soon |
Owner / operator
Operator: NorthWestern Energy. Ownership shares by in-service nameplate MW (EIA-860 Schedule 4; units not listed there are wholly owned by the operator).
| NorthWestern Energy | 100.0% | 17 MW |
Nearby plants
Within 80 km.
| Green Meadow Solar, LLC | 3 MW | 15.6 km |
| Canyon Ferry | 58 MW | 17.8 km |
| Holter | 55 MW | 26.6 km |
| Great Divide Solar, LLC | 3 MW | 27.9 km |