Kerr
Lake County, Montana · EIA plant ID 2188 · Operator: Energy Keepers Inc
Nameplate228MWSummer 228 MW
Generators3in service
Net generation971GWh12 mo to Dec 2025
Capacity factor49%hydro units, summer MW
Heat rate—thermal plants only
First online1938
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 | 676.6 | 38.4% | — |
| 2002 | 1,096 | 65.9% | — |
| 2003 | 886.7 | 47.9% | — |
| 2004 | 1,065.8 | 57.4% | — |
| 2005 | 1,032.1 | 55.7% | — |
| 2006 | 1,076.1 | 58.1% | — |
| 2007 | 1,088.6 | 58.8% | — |
| 2008 | 1,069.9 | 59.1% | — |
| 2009 | 993.4 | 55.0% | — |
| 2010 | 1,033.3 | 57.3% | — |
| 2011 | 1,262.6 | 70.0% | — |
| 2012 | 1,128.6 | 62.4% | — |
| 2013 | 1,067.3 | 59.1% | — |
| 2014 | 1,159.3 | 64.3% | — |
| 2015 | 1,073.3 | 59.5% | — |
| 2016 | 1,068.2 | 59.0% | — |
| 2017 | 754.9 | 41.8% | — |
| 2018 | 975.7 | 54.1% | — |
| 2019 | 837 | 46.4% | — |
| 2020 | 962.8 | 48.1% | — |
| 2021 | 987.5 | 49.5% | — |
| 2022 | 997.6 | 50.0% | — |
| 2023 | 804.8 | 40.3% | — |
| 2024 | 970.3 | 48.5% | — |
| 2025 | 970.6 | 48.6% | — |
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 |
|---|---|---|---|---|---|---|---|---|
| KER1 | Conventional Hydroelectric | HY | 70.6 | 70.6 | Oct 1938 | Operating | — | coming soon |
| KER2 | Conventional Hydroelectric | HY | 70.6 | 70.6 | May 1949 | Operating | — | coming soon |
| KER3 | Conventional Hydroelectric | HY | 86.6 | 86.6 | Nov 1954 | Operating | — | coming soon |
Owner / operator
Operator: Energy Keepers Inc. Ownership shares by in-service nameplate MW (EIA-860 Schedule 4; units not listed there are wholly owned by the operator).
| Energy Keepers Inc | 100.0% | 228 MW |
Nearby plants
Within 80 km.
| Big Fork | 4 MW | 44.1 km |
| Flathead Landfill to Gas Energy Facility | 3 MW | 71.1 km |
| Hungry Horse | 428 MW | 75.6 km |
| Stoltze CoGen1 | 3 MW | 79 km |