Milner Butte LFGE
Other power plant · Cassia County, Idaho
Nameplate capacity
3.9 MW
Rank in Idaho
#114
of 155 plants
In service since
2018
October 2018
Details
- Primary fuel
- Other
- Technology
- Landfill Gas
- Operator
- Southern Idaho Solid Waste
- County
- Cassia County
- Generating units
- 3
- Share of state capacity
- 0.06%
- Rank among other plants in Idaho
- #7 of 14
- EIA plant code
- 63755
Generating units
| Unit | Technology | Nameplate | Summer | Online | Status |
|---|---|---|---|---|---|
| E1 | Landfill Gas | 1.3 MW | 1.3 MW | 2023 | Operating |
| E2 | Landfill Gas | 1.3 MW | 1.3 MW | 2018 | Operating |
| E3 | Landfill Gas | 1.3 MW | 1.3 MW | 2018 | 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
| Barber Dam | Hydro | 4.1 MW |
| Elmore BESS | Battery storage | 4.0 MW |
| Moyie Springs | Hydro | 3.9 MW |
| Chester Diversion Hydroelectric Project | Hydro | 3.6 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 3.9 MW solar plant and a 3.9 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