THOMAS HILL
OperatingCoal power plant
- Capacity
- 1,182 MW
- Primary fuel
- Coal
- County
- Randolph County
- Operator
- ASSOCIATED ELECTRIC COOP, INC
- Status
- Operating
- Commissioned
- 1966
- EIA plant ID
- 2168
- Generators
- 3
- Technology
- Conventional Steam Coal
- Net generation (2024)
- 5,537 GWh
- Capacity factor (2024, EIA nameplate)
- 53%
- Data vintage
- EIA-860 2024 final; EIA-923 2022-2024 final
- Coordinates
- 39.5526, -92.6387
THOMAS HILL, a 1,182 MW Coal power plant in Randolph County, Missouri. Operated by ASSOCIATED ELECTRIC COOP, INC, commissioned 1966.
How THOMAS HILL compares
With 1,182 MW of capacity, THOMAS HILL ranks 5th among the 92 operating power plants Bywatts maps in Missouri and 4th of the 13 operating Coal plants in the state. It accounts for about 12% of Missouri's operating Coal capacity and 6.1% of all operating capacity in the state. Nationally it is the 98th-largest of the 324 operating Coal plants in the database. Commissioned in 1966, it is older than 76% of the 89 operating Missouri plants with a recorded commissioning year. Its operator, ASSOCIATED ELECTRIC COOP, INC, runs 7 operating plants in Missouri totaling 3,792 MW. It shares Randolph County with one other operating plant, MOBERLY.
EIA-860 lists 3 generators at the site with 1,182 MW of nameplate capacity, all conventional steam coal technology. Net generation was 5,537 GWh in 2024 (a 53% capacity factor), down 22% from 2022. Its generators came online between 1966 and 1982.
Grid neighborhood
The nearest named substation is THOMAS HILL, about 0.3 miles away; the closest transmission line found within 10 miles is a 161 kV line owned by UNION ELECTRIC CO - (MO), under 0.1 miles away. Another 5 operating power plants totaling 86 MW sit within 25 miles; the largest is MOBERLY (61 MW, Oil).
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
THOMAS HILL is a 1,182 MW coal power plant in Randolph County, MO, operated by ASSOCIATED ELECTRIC COOP, INC, commissioned in 1966. Randolph County carries moderate modeled catastrophe exposure in the FEMA National Risk Index, scoring 2.5 of 5 at the 36th national percentile. Heat wave is the leading peril, rated Relatively Low by FEMA at the 81st 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.
Randolph County hazard ratings
| Peril | FEMA rating | National percentile | Peril score | Events per year |
|---|---|---|---|---|
| Heat wave | Relatively Low | 81st | 4.3 of 5 | 10.0 |
| Earthquake | Relatively Low | 72nd | 3.9 of 5 | <0.01 |
| Tornado | Relatively Moderate | 64th | 3.6 of 5 | 0.22 |
| Ice storm | Relatively Low | 55th | 3.2 of 5 | 0.64 |
| Hail | Relatively Low | 48th | 2.9 of 5 | 3.7 |
| Riverine flooding | Relatively Low | 47th | 2.9 of 5 | 0.50 |
| Wildfire | Very Low | 45th | 2.8 of 5 | <0.01 |
| Lightning | Relatively Low | 34th | 2.3 of 5 | 48.3 |
| Winter weather | Very Low | 33rd | 2.3 of 5 | 10.2 |
| Strong wind | Relatively Low | 29th | 2.2 of 5 | 3.1 |
| Hurricane | Very Low | 12th | 1.5 of 5 | <0.01 |
Perils not assessed in Randolph 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 |
|---|---|
| Coastal flooding | FEMA rating is "Not Applicable" for this county |
Model hail, wind and flood exposure for Randolph 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.