1st largest plant in Kansas · 63rd nationally
Jeffrey Energy Center is a coal power plant in Kansas with a nameplate capacity of 2,160 MW. It generates roughly 5.9M MWh per year — enough to power about 557,232 average U.S. homes.
Its capacity factor of 31% reflects intermittent or peaking operation. At 2292 lb CO₂/MWh, its emission rate sits above the national grid average of roughly 800 lb/MWh.
Ghost bars are each month's theoretical maximum (2,160 MW nameplate × hours in the month). Filled bars are actual net generation reported to EIA Form 923. The gap between them is capacity factor made visible.
| Plant Name | Jeffrey Energy Center |
|---|---|
| Operator | Evergy Kansas Central, Inc |
| City | St. Mary's |
| County | Pottawatomie County |
| State | Kansas |
| ZIP | 66536 |
| Coordinates | 39.28645, -96.11723 |
This plant highlighted in navy-ringed pin; other generators within 25 miles shown as fuel-colored dots.
| ID | Technology | Fuel | Capacity | Status | Online |
|---|---|---|---|---|---|
| 1 | Conventional Steam Coal | Subbituminous Coal | 720 MW | Operating | 1978 |
| 2 | Conventional Steam Coal | Subbituminous Coal | 720 MW | Operating | 1980 |
| 3 | Conventional Steam Coal | Subbituminous Coal | 720 MW | Operating | 1983 |
| Owner | Location | Share |
|---|---|---|
| Evergy Kansas Central, Inc | Topeka, KS | 7200.0% |
| Evergy Kansas South, Inc | Topeka, KS | 2000.0% |
| Evergy Missouri West | Kansas City, MO | 800.0% |
Ownership reported to EIA Form 860. Percentages reflect reported generator-level ownership share, averaged when a plant has multiple generators.
| CO₂ | 6.7M metric tons |
|---|---|
| SO₂ | 304 metric tons |
| NOₓ | 2.6k metric tons |
| CO₂ Rate | 2292 lb/MWh |
Annual totals and CO₂ rate reported by EPA eGRID for 2023. Reference averages are approximate U.S.-wide figures from the same dataset.
| NERC Region | MRO |
|---|---|
| Balancing Authority | Southwest Power Pool |
Coal plants burn pulverized coal to boil water and spin steam turbines. They emit substantial CO₂, SO₂, and NOₓ along with mercury and particulate matter. Modern units include scrubbers and selective catalytic reduction; older units are increasingly being retired or converted to natural gas as economics shift.