Miles City GT
Natural gas power plant · Custer County, Montana
Nameplate capacity
23 MW
Rank in Montana
#44
of 73 plants
In service since
1972
May 1972
Details
- Primary fuel
- Natural gas
- Technology
- Natural Gas Fired Combustion Turbine
- Operator
- Montana-Dakota Utilities Co
- County
- Custer County
- Generating units
- 1
- Share of state capacity
- 0.30%
- Rank among natural gas plants in Montana
- #6 of 9
- EIA plant code
- 2177
Generating units
| Unit | Technology | Nameplate | Summer | Online | Status |
|---|---|---|---|---|---|
| 1 | Natural Gas Fired Combustion Turbine | 23 MW | 24 MW | 1972 | 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 Montana
| Big Timber Wind Farm | Wind | 25 MW |
| Greenfield Wind - MT | Wind | 25 MW |
| Lewis & Clark | Natural gas | 19 MW |
| Gordon Butte Wind LLC | Wind | 18 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 23 MW solar plant and a 23 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 Montana power plants · What Montana actually generates