Low Line Rapids
Hydro power plant · Twin Falls County, Idaho
Nameplate capacity
2.8 MW
Rank in Idaho
#127
of 155 plants
In service since
1990
August 1990
Details
- Primary fuel
- Hydro
- Technology
- Conventional Hydroelectric
- Operator
- Lower Lowline LLC
- County
- Twin Falls County
- Generating units
- 1
- Share of state capacity
- 0.04%
- Rank among hydro plants in Idaho
- #54 of 76
- EIA plant code
- 10808
Generating units
| Unit | Technology | Nameplate | Summer | Online | Status |
|---|---|---|---|---|---|
| GEN1 | Conventional Hydroelectric | 2.8 MW | 2.7 MW | 1990 | Operating |
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
| Weiser BESS | Battery storage | 3.0 MW |
| Little Wood Hydro Project | Hydro | 2.8 MW |
| Birch Creek Power | Hydro | 2.6 MW |
| El Dorado Hydro Elk Creek | Hydro | 2.6 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 2.8 MW solar plant and a 2.8 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