J E CORETTE PLANT
Retired 2015Coal power plant
- Capacity
- 173 MW
- Primary fuel
- Coal
- County
- Yellowstone County
- Operator
- PPL MONTANA LLC
- EIA plant ID
- 2187
- Coordinates
- 45.7756, -108.4812
J E CORETTE PLANT, a retired 173 MW Coal power plant in Yellowstone County, Montana. It was retired in 2015, according to EIA-860.
How J E CORETTE PLANT compares
It was retired in 2015 according to EIA-860, so it is not counted in Montana's operating fleet. Its operator, PPL MONTANA LLC, runs 12 operating plants in Montana totaling 2,868 MW. It shares Yellowstone County with 2 other operating plants, YELLOWSTONE ENERGY LP and PHILLIPS 66 BILLINGS REFINERY.
Grid neighborhood
The nearest named substation is BILLINGS (230 kV), about 0.1 miles away; the closest transmission line found within 10 miles is a 100 kV line owned by NORTHWESTERN ENERGY LLC - (MT), under 0.1 miles away. Another 2 operating power plants totaling 70 MW sit within 25 miles; the largest is YELLOWSTONE ENERGY LP (68 MW, Oil). Within 50 miles are 2 mapped data centers; the nearest is YRIX in Billings, about 1.6 miles away.
Computed by Bywatts from HIFLD power plant, substation and transmission line records, EIA-860 retirement records and PeeringDB data center locations; distances are straight-line. Sources and methodology
Weather peril exposure
J E CORETTE PLANT is a retired 173 MW coal power plant in Yellowstone County, MT, formerly operated by PPL MONTANA LLC. Yellowstone County carries moderate modeled catastrophe exposure in the FEMA National Risk Index, scoring 2.3 of 5 at the 33rd national percentile. Winter weather is the leading peril, rated Very High by FEMA at the 92nd percentile.
The Bywatts loss layer is calibrated to solar PV hardware, so it is not applied to a coal plant. The ratings below are the FEMA National Risk Index county hazard ratings for this location.
Yellowstone County hazard ratings
| Peril | FEMA rating | National percentile | Peril score | Events per year |
|---|---|---|---|---|
| Winter weather | Very High | 92nd | 4.7 of 5 | 18.3 |
| Wildfire | Relatively Moderate | 88th | 4.5 of 5 | <0.01 |
| Earthquake | Relatively Low | 50th | 3.0 of 5 | <0.01 |
| Heat wave | Relatively Low | 49th | 3.0 of 5 | 2.2 |
| Hail | Relatively Moderate | 47th | 2.9 of 5 | 2.0 |
| Riverine flooding | Relatively Moderate | 37th | 2.5 of 5 | 1.0 |
| Lightning | Relatively High | 27th | 2.1 of 5 | 32.0 |
| Ice storm | Relatively Low | 17th | 1.7 of 5 | 0.01 |
| Tornado | Relatively Low | 16th | 1.6 of 5 | 0.15 |
| Strong wind | Relatively Moderate | 9th | 1.4 of 5 | 0.85 |
Perils not assessed in Yellowstone 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 Yellowstone 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.