Jeffrey Energy Center
Jeffrey Energy Center is a coal plant in Pottawatomie County, Kansas, operated by Evergy Kansas Central, Inc. No other power plant in Kansas has more nameplate capacity; the state has 190 in all. Within the Southwest Power Pool balancing area it is the largest of 713 plants. The operator has reported planned retirement dates for 1,440 MW of it, between 2030 and 2039. Ownership is shared by three organizations; the largest stake, 72%, is held by Evergy Kansas Central, Inc.
Nameplate capacity, 2025
2,160 MW
2,179 MW net summer capacity
3 operable units
- Coal steam2,160 MW100%
Unit by unit, 1978 to 2025
operating in 2025reported planned retirementbar height follows unit size
Among Kansas’s plants
Largest plants in the state by nameplate capacity, with the plants ranked next to this one.
- 1Jeffrey Energy Centerthis plant
- 2La Cygne1,599 MW
- 3Wolf Creek Generating Station1,296 MW
Other rankings
- All US power plants
- 58th of 14,286
- US coal plants
- 17th of 195
- Coal plants in Kansas
- 1st of 5
- Plants run by Evergy Kansas Central, Inc
- 1st of 15
- Biggest single unit, among Kansas’s plants
- 3rd of 190
Operable units
By the year its oldest working unit started, it is the third-oldest of Kansas’s 5 coal plants.
| Unit | Technology | Nameplate | Summer | Online | Status |
|---|---|---|---|---|---|
| 1 | Coal steam | 720 MW | 725 MW | 1978 | Operating, retirement planned for 2039 |
| 2 | Coal steam | 720 MW | 722 MW | 1980 | Operating |
| 3 | Coal steam | 720 MW | 732 MW | 1983 | Operating, retirement planned for 2030 |
Who owns it
Shares are weighted by the nameplate capacity of each unit an owner holds.
| Owner | Share of capacity |
|---|---|
| Evergy Kansas Central, Inc | 72.0% |
| Evergy Kansas South, Inc | 20.0% |
| Evergy Missouri West | 8.0% |
Grid and site
- Balancing area
- Southwest Power Pool
- Reliability region
- Midwest Reliability Organization
- Highest grid connection voltage
- 345 kV
- Water source
- Kansas River
- Nearest town on record
- St. Mary’s
- Operator type
- Utility
- Coordinates
- 39.286°N, 96.117°W
Closest plants
| Plant | Runs on | Capacity | Distance |
|---|---|---|---|
| Wamego | Natural gas | 15.2 MW | 11.9 mi southwest |
| St. George | Solar | 1 MW | 18.5 mi west |
| FreeState Kiro Solar I | Solar | 1 MW | 21.5 mi southeast |
| Waste Management Rolling Meadows LFGTE | Biomass and waste | 5.6 MW | 22.1 mi east |
| Holton | Oil and petroleum | 21.5 MW | 24.3 mi northeast |
| FreeState Crooked Post Solar I | Solar | 1.6 MW | 25.9 mi southeast |
| Soldier Creek Wind | Wind | 300 MW | 26.0 mi north |
| Marshall Wind Farm | Wind | 73.8 MW | 31.5 mi northwest |