MILES CITY GT
OperatingNatural Gas power plant
- Capacity
- 23 MW
- Primary fuel
- Natural Gas
- County
- Custer County
- Operator
- MONTANA-DAKOTA UTILITIES CO
- Status
- Operating
- Commissioned
- 1972
- EIA plant ID
- 2177
- Coordinates
- 46.4113, -105.7951
MILES CITY GT, a 23 MW Natural Gas power plant in Custer County, Montana. Operated by MONTANA-DAKOTA UTILITIES CO, commissioned 1972.
Weather peril exposure
MILES CITY GT is a 23 MW natural gas power plant in Custer County, MT, operated by MONTANA-DAKOTA UTILITIES CO, commissioned in 1972. Custer County carries elevated modeled catastrophe exposure in the FEMA National Risk Index, scoring 2.9 of 5 at the 48th national percentile. Winter weather is the leading peril, rated Relatively High by FEMA at the 96th percentile.
The Bywatts loss layer is calibrated to solar PV hardware, so it is not applied to a natural gas plant. The ratings below are the FEMA National Risk Index county hazard ratings for this location.
Custer County hazard ratings
| Peril | FEMA rating | National percentile | Peril score | Events per year |
|---|---|---|---|---|
| Winter weather | Relatively High | 96th | 4.9 of 5 | 15.8 |
| Wildfire | Relatively Low | 94th | 4.8 of 5 | <0.01 |
| Heat wave | Very Low | 89th | 4.6 of 5 | 2.2 |
| Hail | Relatively Low | 57th | 3.3 of 5 | 1.8 |
| Riverine flooding | Relatively Low | 56th | 3.3 of 5 | 0.93 |
| Earthquake | Very Low | 37th | 2.5 of 5 | <0.01 |
| Strong wind | Relatively Moderate | 31st | 2.3 of 5 | 0.97 |
| Lightning | Relatively Moderate | 26th | 2.1 of 5 | 31.0 |
| Ice storm | Very Low | 20th | 1.8 of 5 | 0.01 |
| Tornado | Very Low | 17th | 1.7 of 5 | 0.26 |
Perils not assessed in Custer County
These perils carry no usable National Risk Index figure for this county, so they are excluded from the scoring rather than scored zero. A zero would claim the peril was assessed and found benign.
| Peril | Why it is not scored |
|---|---|
| Hurricane | FEMA rating is "Not Applicable" for this county |
| Coastal flooding | FEMA rating is "Not Applicable" for this county |
Model hail, wind and flood exposure for Custer County in the weather risk calculator
Ratings are the FEMA National Risk Index county hazard ratings; the peril score is a Bywatts transform of the FEMA national percentile. Full data sources and the solar vulnerability methodology are in the weather risk calculator.
Modeled estimate for screening and negotiation. Built from FEMA National Risk Index county hazard data and a solar vulnerability layer documented above. Not a quote, a binder, or actuarial advice, and not a substitute for a carrier's own model. Hazard data: FEMA National Risk Index December 2025, synced 2026-07-24. Resolution is county level, not site level.