Thomas Hill — Plant Summary
- EIA Plant ID
- 2168
- Capacity
- 1181.7 MW
- Primary Fuel
- Coal
- Technology
- Conventional Steam Coal
- Status
- Operating
- Location
- Randolph, MO
- Operating Since
- 1966
- Generators
- 3
- Operator
- Associated Electric Coop, Inc
- Parent Company
- —
- Annual Generation
- 6,938,209 MWh
- Capacity Factor
- 67.0%
- Balancing Authority
- Associated Electric Cooperative, Inc.
- ISO/RTO
- —
- NERC Region
- SERC
Thomas Hill
OperatingRCSub. Coal
Ranked #4 of 8 Sub. Coal plants in MO#35 of 103 nationally
1181.7 MW Sub. Coal operating in Randolph, MO — Associated Electric Cooperative, Inc.
EIAWD
1,181.7 MW
Nameplate Capacity
3
Generators
units
Conventional Steam Coal
Technology
1966
Operating Since
Location
Coordinates
39.5522, -92.6381
County
Randolph, MO
Nearby Plants
- MoberlyDistillate Oil60.6 MW · 19.4 km
- Salisbury City ofDistillate Oil6.4 MW · 20.1 km
- Peoples Generating StationLandfill Gas3.2 MW · 24.9 km
Ownership & Operator
| Field | EIA | GEM | Wikidata |
|---|---|---|---|
| Operator | Associated Electric Coop, Inc | — | — |
| Owner(s) | Associated Electric Coop, Inc | — | — |
| Status | Operating | — | — |
Ownership Chain
No GEM tracker match for this plant — ownership chain unavailable.
About
The Thomas Hill power plant is located in Randolph County, Missouri. It has a total capacity of 1181.7 MW across three generators, using subbituminous coal (SUB) as its primary fuel in a conventional steam coal technology. The plant began operating in 1966 and is owned and operated by Associated Electric Cooperative, Inc. Thomas Hill ranks as the fourth largest power plant in Missouri (out of six) and 30th nationally (out of 75).
The plant's latest annual generation was 6,938,209 MWh, achieving a capacity factor of 67.0%. The balancing authority is Associated Electric Cooperative, Inc., and the plant operates within the SERC NERC region.
Generated from EIA, GEM, and public data sources
Engineering & Generators
Grid Context
NERC Region
SERC
Balancing Authority
Associated Electric Cooperative, Inc.
Grid Voltage
161 kV
Regulatory Status
RE
Entity Type
Cooperative
Sector
Electric Utility
Generation
816.7K MWh
Latest Month
6.9M MWh
Annual Generation
67.0%
Capacity Factor
Jan 2023 – Dec 2025
Financial Data
No financial data available for this plant.
Pricing & Market Data
This plant is outside organized wholesale electricity markets (ISOs/RTOs). Nodal pricing data is not available.
News & Articles (10)Beta
Industry·corporate
Rural Missourians would benefit if Associated Electric invested in renewables | Opinion
Associated Electric Cooperatives Inc. (AECI) is a largely unaccountable utility that is guided by its own political whims, jeopardizing the...
Associated Electric Cooperatives Inc. (operator)AECI (operator)
Springfield News-Leader·9 months ago
Industry·corporate
Leo Patrick Johnson, age 66
Leo Patrick Johnson passed away peacefully at St. Vincent's Hospital in Little Rock on May 18th, 2025. Leo was born on June 4th, 1958.
Leo Patrick Johnson (other)St. Vincent's Hospital (other)
A Natural State Funeral Service·10 months ago
Deals·other
Peabody Signs Long-Term Coal Deal with Missouri Cooperative AECI
Peabody Energy, one of the largest producers of thermal coal in the US, has signed a major supply agreement with electric cooperative Associated Electric...
Peabody Energy (seller)Associated Electric (buyer)
POWER Magazine·11 months ago
General
UTILITY TO SHUT DOWN MO.'S NO. 1 COAL MINE
Associated Electric Cooperative Inc. said Monday it will shut down its Thomas Hill Mine, which accou.
Journal of Commerce·1 years ago
Last updated 2026-03-26
View all 10 articles