Barber Dam
Ada County, Idaho · EIA plant ID 10735 · Operator: Barber Pool Hydro LLC
Nameplate4MWSummer 4 MW
Generators1in service
Net generation7GWh12 mo to Dec 2025
Capacity factor19%hydro units, summer MW
Heat rate—thermal plants only
First online1990
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 | 7.4 | 21.2% | — |
| 2002 | 10.3 | 29.4% | — |
| 2003 | 10.6 | 30.3% | — |
| 2004 | 11.3 | 32.1% | — |
| 2005 | 9.7 | 27.8% | — |
| 2006 | 18.6 | 53.0% | — |
| 2007 | 10.4 | 29.8% | — |
| 2008 | 11.1 | 31.7% | — |
| 2009 | 11.7 | 33.3% | — |
| 2010 | 11.5 | 32.8% | — |
| 2011 | 14.1 | 40.3% | — |
| 2012 | 14.7 | 41.9% | — |
| 2013 | 9 | 25.6% | — |
| 2014 | 10.4 | 29.5% | — |
| 2015 | 9.4 | 26.9% | — |
| 2016 | 12.2 | 34.6% | — |
| 2017 | 13.3 | 37.9% | — |
| 2018 | 12.1 | 34.4% | — |
| 2019 | 13.1 | 37.3% | — |
| 2020 | 4.7 | 13.3% | — |
| 2021 | 4.1 | 11.6% | — |
| 2022 | 3.9 | 11.2% | — |
| 2023 | 9.2 | 26.1% | — |
| 2024 | 6.7 | 19.2% | — |
| 2025 | 6.7 | 19.0% | — |
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 | 4.1 | 4 | Aug 1990 | Operating | — | coming soon |
Owner / operator
Operator: Barber Pool Hydro LLC. Ownership shares by in-service nameplate MW (EIA-860 Schedule 4; units not listed there are wholly owned by the operator).
| Barber Pool Hydro LLC | 100.0% | 4 MW |
Nearby plants
Within 80 km.
| Boise Bench BESS | 150 MW | 2.7 km |
| Boise R Diversion | 3 MW | 3.4 km |
| Lucky Peak Power Plant Project | 101 MW | 6.3 km |
| Blacks Creek Solar | — | 8.9 km |
| Arrowrock Hydroelectric Project | 15 MW | 16.4 km |
| Orchard Ranch Solar | 20 MW | 16.8 km |