Preliminary 2025 facility recordOperating
St. Mary's, KS · EIA plant 6068
Jeffrey Energy Center
Jeffrey Energy Center is a coal power facility in St. Mary's, KS, with 2,160 MW of operating capacity.
Capacity profile
Fuel and technology
Operating
Coal2,160 MW
ProposedNo proposed capacity reported
Reported technologiesConventional Steam Coal
Source quality
Preliminary facility data
This page uses the EIA-860 2025 Early Release. EIA identifies the release as preliminary, so it should not be used for official state or national aggregation. Capacity is nameplate capacity, not real-time output or annual generation.