BONANZA
OperatingCoal power plant
- Capacity
- 500 MW
- Primary fuel
- Coal
- County
- Uintah County
- Operator
- DESERET GENERATION & TRAN COOP
- Status
- Operating
- Commissioned
- 1986
- EIA plant ID
- 7790
- Generators
- 2
- Technology
- Conventional Steam Coal
- Net generation (2024)
- 3,244 GWh
- Capacity factor (2024, EIA nameplate)
- 72%
- Data vintage
- EIA-860 2024 final; EIA-923 2022-2024 final
- Coordinates
- 40.0865, -109.2874
BONANZA, a 500 MW Coal power plant in Uintah County, Utah. Operated by DESERET GENERATION & TRAN COOP, commissioned 1986.
How BONANZA compares
With 500 MW of capacity, BONANZA ranks 6th among the 61 operating power plants Bywatts maps in Utah and 4th of the 5 operating Coal plants in the state. It accounts for about 11% of Utah's operating Coal capacity and 6.6% of all operating capacity in the state. Nationally it is the 163rd-largest of the 324 operating Coal plants in the database. Commissioned in 1986, it is older than 50% of the 61 operating Utah plants with a recorded commissioning year.
EIA-860 lists 2 generators at the site with 512 MW of nameplate capacity, mainly conventional steam coal technology. Net generation was 3,244 GWh in 2024 (a 72% capacity factor). Its generators came online between 1986 and 2023.
Grid neighborhood
The nearest named substation is BONANZA (345 kV), about 0.2 miles away; the closest transmission line found within 10 miles is a 345 kV line owned by DESERET GENERATION & TRAN COOP, under 0.1 miles away.
Computed by Bywatts from HIFLD power plant, substation and transmission line records and EIA-860/923 survey data; distances are straight-line. Sources and methodology
Weather peril exposure
BONANZA is a 500 MW coal power plant in Uintah County, UT, operated by DESERET GENERATION & TRAN COOP, commissioned in 1986. Uintah County carries low modeled catastrophe exposure in the FEMA National Risk Index, scoring 1.0 of 5 at the 1st national percentile. Earthquake is the leading peril, rated Very Low by FEMA at the 77th 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.
Uintah County hazard ratings
| Peril | FEMA rating | National percentile | Peril score | Events per year |
|---|---|---|---|---|
| Earthquake | Very Low | 77th | 4.1 of 5 | <0.01 |
| Wildfire | Relatively Low | 76th | 4.1 of 5 | <0.01 |
| Winter weather | Very Low | 50th | 3.0 of 5 | 13.0 |
| Heat wave | Very Low | 24th | 2.0 of 5 | 0.34 |
| Ice storm | Very Low | 18th | 1.7 of 5 | 0.01 |
| Hail | Very Low | 15th | 1.6 of 5 | 0.12 |
| Lightning | Relatively Moderate | 14th | 1.6 of 5 | 44.9 |
| Tornado | Very Low | 10th | 1.4 of 5 | 0.16 |
| Strong wind | Very Low | 4th | 1.2 of 5 | 0.17 |
| Riverine flooding | Very Low | 2nd | 1.1 of 5 | 0.64 |
Perils not assessed in Uintah 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 Uintah 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.