Horseshoe Bend Hydroelectric Co
Boise County, Idaho · EIA plant ID 54524 · Operator: Horseshoe Bend Hydroelectric Co
Nameplate9MWSummer 9 MW
Generators2in service
Net generation47GWh12 mo to Dec 2025
Capacity factor57%hydro units, summer MW
Heat rate—thermal plants only
First online1995
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 | 28.9 | 35.1% | — |
| 2002 | 38.9 | 47.2% | — |
| 2003 | 42.9 | 52.1% | — |
| 2004 | 40 | 48.5% | — |
| 2005 | 33.3 | 40.4% | — |
| 2006 | 47.5 | 57.7% | — |
| 2007 | 46.1 | 56.0% | — |
| 2008 | 40.1 | 48.6% | — |
| 2009 | 43.5 | 52.8% | — |
| 2010 | 38.2 | 46.3% | — |
| 2011 | 42 | 51.0% | — |
| 2012 | 49.5 | 60.0% | — |
| 2013 | 41 | 49.8% | — |
| 2014 | 44.8 | 54.4% | — |
| 2015 | 42.4 | 51.5% | — |
| 2016 | 46.5 | 56.3% | — |
| 2017 | 37 | 44.9% | — |
| 2018 | 44.5 | 54.0% | — |
| 2019 | 37.4 | 45.5% | — |
| 2020 | 42.2 | 51.1% | — |
| 2021 | 37.7 | 45.8% | — |
| 2022 | 39.5 | 48.0% | — |
| 2023 | 35.5 | 43.1% | — |
| 2024 | 42 | 50.9% | — |
| 2025 | 46.8 | 56.9% | — |
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 |
|---|---|---|---|---|---|---|---|---|
| GEN1 | Conventional Hydroelectric | HY | 4.7 | 4.7 | Apr 1995 | Operating | — | coming soon |
| GEN2 | Conventional Hydroelectric | HY | 4.7 | 4.7 | Apr 1995 | Operating | — | coming soon |
Owner / operator
Operator: Horseshoe Bend Hydroelectric Co. Ownership shares by in-service nameplate MW (EIA-860 Schedule 4; units not listed there are wholly owned by the operator).
| Horseshoe Bend Hydroelectric Co | 100.0% | 9 MW |
Nearby plants
Within 80 km.
| Black Canyon | 10 MW | 15.7 km |
| Hidden Hollow Energy | 3 MW | 23.1 km |
| Boise Bench BESS | 150 MW | 39.2 km |
| Barber Dam | 4 MW | 39.4 km |
| Boise R Diversion | 3 MW | 42.5 km |
| Amalgamated Sugar LLC Nampa | 8 MW | 42.5 km |