Mountain Home
Elmore County, Idaho · EIA plant ID 56636 · Operator: Hot Springs
Nameplate21MWSummer 21 MW
Generators1in service
Net generation30GWh12 mo to Aug 2026
Capacity factor16%wind units, summer MW
Heat rate—thermal plants only
First online2008
The 12-month figures include preliminary EIA-923 months, which EIA revises. Final data runs through Dec 2025.
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), wind 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) |
|---|---|---|---|
| 2008 | 3.7 | 3.0% | — |
| 2009 | 43.2 | 23.5% | — |
| 2010 | 31.2 | 17.0% | — |
| 2011 | 44.5 | 24.2% | — |
| 2012 | 46.1 | 25.0% | — |
| 2013 | 38.8 | 21.1% | — |
| 2014 | 41.5 | 22.5% | — |
| 2015 | 32.1 | 17.5% | — |
| 2016 | 40.9 | 22.2% | — |
| 2017 | 40.9 | 22.2% | — |
| 2018 | 38.2 | 20.8% | — |
| 2019 | 37.1 | 20.2% | — |
| 2020 | 37.1 | 20.1% | — |
| 2021 | 34.6 | 18.8% | — |
| 2022 | 33.2 | 18.0% | — |
| 2023 | 34.7 | 18.9% | — |
| 2024 | 38 | 20.6% | — |
| 2025 | 33.1 | 18.0% | — |
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 |
|---|---|---|---|---|---|---|---|---|
| 1 | Onshore Wind Turbine | WT | 21 | 21 | May 2008 | Operating | — | suzlon S88-2100 |
Owner / operator
Operator: Hot Springs. Ownership shares by in-service nameplate MW (EIA-860 Schedule 4; units not listed there are wholly owned by the operator).
| Hot Springs | 100.0% | 21 MW |
Nearby plants
Within 80 km.
| Two Ponds Windfarm | 23 MW | 1.6 km |
| Hammett Hill Windfarm | 23 MW | 2.4 km |
| Ryegrass Windfarm | 23 MW | 2.4 km |
| Bennett Creek Windfarm LLC - Mountain Home | 21 MW | 3.2 km |
| Desert Meadow Windfarm | 23 MW | 3.5 km |
| Mainline Windfarm | 23 MW | 4.9 km |