Lower Malad
Gooding County, Idaho · EIA plant ID 815 · Operator: Idaho Power Co
Nameplate14MWSummer 15 MW
Generators1in service
Net generation104GWh12 mo to Dec 2025
Capacity factor78%hydro units, summer MW
Heat rate—thermal plants only
First online1948
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 | 110.5 | 114.7% | — |
| 2002 | 106.3 | 110.3% | — |
| 2003 | 102 | 87.5% | — |
| 2004 | 100.9 | 86.4% | — |
| 2005 | 101.1 | 86.8% | — |
| 2006 | 112.4 | 96.5% | — |
| 2007 | 104.6 | 89.8% | — |
| 2008 | 103.1 | 88.2% | — |
| 2009 | 105.1 | 78.4% | — |
| 2010 | 107 | 79.8% | — |
| 2011 | 110.9 | 82.8% | — |
| 2012 | 105.9 | 78.8% | — |
| 2013 | 92.6 | 69.1% | — |
| 2014 | 39.7 | 29.6% | — |
| 2015 | 97.9 | 73.1% | — |
| 2016 | 100 | 74.4% | — |
| 2017 | 99.8 | 74.5% | — |
| 2018 | 99.3 | 74.1% | — |
| 2019 | 97.7 | 72.9% | — |
| 2020 | 97 | 72.2% | — |
| 2021 | 92.9 | 79.8% | — |
| 2022 | 96.9 | 74.7% | — |
| 2023 | 106.8 | 78.6% | — |
| 2024 | 102 | 73.5% | — |
| 2025 | 104.4 | 77.9% | — |
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 |
|---|---|---|---|---|---|---|---|---|
| 1 | Conventional Hydroelectric | HY | 13.5 | 15.3 | Oct 1948 | Operating | — | coming soon |
Owner / operator
Operator: Idaho Power Co. Ownership shares by in-service nameplate MW (EIA-860 Schedule 4; units not listed there are wholly owned by the operator).
| Idaho Power Co | 100.0% | 14 MW |
Nearby plants
Within 80 km.
| Upper Malad | 8 MW | 1.7 km |
| Lower Salmon | 60 MW | 2.7 km |
| Fossil Gulch | 11 MW | 3.6 km |
| Thousand Springs Wind Park | 12 MW | 5 km |
| Tuana Gulch Wind Park | 11 MW | 6.1 km |
| Oregon Trail Wind Park | 14 MW | 7.4 km |