Anderson Ranch
Elmore County, Idaho · EIA plant ID 6395 · Operator: U S Bureau of Reclamation
Nameplate40MWSummer 40 MW
Generators2in service
Net generation86GWh12 mo to Dec 2025
Capacity factor24%hydro units, summer MW
Heat rate—thermal plants only
First online1950
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 | 97.6 | 27.8% | — |
| 2002 | 91.2 | 26.0% | — |
| 2003 | 83.1 | 23.7% | — |
| 2004 | 107.3 | 30.5% | — |
| 2005 | 96.9 | 27.7% | — |
| 2006 | 164.7 | 47.0% | — |
| 2007 | 124 | 35.4% | — |
| 2008 | 109.4 | 31.1% | — |
| 2009 | 123.1 | 35.1% | — |
| 2010 | 121.7 | 34.7% | — |
| 2011 | 139.9 | 39.9% | — |
| 2012 | 184.9 | 52.6% | — |
| 2013 | 112.9 | 32.2% | — |
| 2014 | 86.3 | 24.6% | — |
| 2015 | 122.3 | 34.9% | — |
| 2016 | 145.4 | 41.4% | — |
| 2017 | 162.5 | 46.4% | — |
| 2018 | 146.3 | 41.8% | — |
| 2019 | 126.1 | 36.0% | — |
| 2020 | 95.1 | 27.1% | — |
| 2021 | 99.5 | 28.4% | — |
| 2022 | 60.2 | 17.2% | — |
| 2023 | 121.6 | 34.7% | — |
| 2024 | 130 | 37.0% | — |
| 2025 | 85.8 | 24.5% | — |
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 |
|---|---|---|---|---|---|---|---|---|
| 1 | Conventional Hydroelectric | HY | 20 | 20 | Dec 1950 | Operating | — | coming soon |
| 2 | Conventional Hydroelectric | HY | 20 | 20 | Jul 1951 | Operating | — | coming soon |
Owner / operator
Operator: U S Bureau of Reclamation. Ownership shares by in-service nameplate MW (EIA-860 Schedule 4; units not listed there are wholly owned by the operator).
| U S Bureau of Reclamation | 100.0% | 40 MW |
Nearby plants
Within 80 km.
| Bennett Mountain | 173 MW | 29.1 km |
| Elmore BESS | 4 MW | 29.3 km |
| Evander Andrews Power Complex | 271 MW | 30.3 km |
| Crimson Orchard Solar and BESS | — | 30.9 km |
| Desert Meadow Windfarm | 23 MW | 33.4 km |
| Bennett Creek Windfarm LLC - Mountain Home | 21 MW | 33.8 km |