Nameplate capacity
5.0 MW
Rank in Idaho
#109
of 155 plants
In service since
1967
December 1967
Details
- Primary fuel
- Other
- Technology
- Petroleum Liquids
- Operator
- Idaho Power Co
- County
- Lemhi County
- Generating units
- 2
- Share of state capacity
- 0.08%
- Rank among other plants in Idaho
- #6 of 14
- EIA plant code
- 817
Generating units
| Unit | Technology | Nameplate | Summer | Online | Status |
|---|---|---|---|---|---|
| 1 | Petroleum Liquids | 2.5 MW | 2.6 MW | 1967 | Standby/Backup: available for service but not normally used |
| 2 | Petroleum Liquids | 2.5 MW | 2.8 MW | 1967 | Standby/Backup: available for service but not normally used |
Nameplate is the maximum rated output; summer capacity is what the unit can reliably deliver on a hot day, which is typically lower.
Similarly sized plants in Idaho
| Tamarack Energy | Other | 6.2 MW |
| BYUI Central Energy Facility | Natural gas | 5.6 MW |
| Dietrich Drop | Hydro | 4.8 MW |
| Island Park | Hydro | 4.8 MW |
About this data
From EIA’s inventory of operable generators, May 2026 release. Capacity is nameplate — the maximum rated output of the equipment, not what the plant actually generates over a year, which depends on how often it runs. A 5.0 MW solar plant and a 5.0 MW nuclear plant have the same entry here and produce very different amounts of electricity.
“In service since” is the earliest in-service date among the units still listed, so a site rebuilt around newer equipment can read as younger than the site itself. All Idaho power plants · What Idaho actually generates