Compare power plants

Registry, engineering, and operating metrics shown on a consistent EIA basis.

Metric	York Energy Center York County	Hay Road New Castle County
Capacity	1,449.4 MW	1,098.2 MW
Technology	Natural Gas Fired Combined Cycle	Natural Gas Fired Combined Cycle
Operator	Calpine Mid-Merit LLC	Calpine Mid-Atlantic Generation LLC
Operating units	7	8
Latest 12-month generation	9.00 TWh	2.41 TWh
Latest complete-year capacity factor	69.2% (2025)	22.6% (2025)
National technology rank	#24 of 538	#80 of 538
Latest EIA report	2026-06	2026-06

Generation comes from EIA-923. Capacity, unit counts, technology, and reporting relationships come from EIA-860. Incomplete reporting years are excluded from capacity-factor comparisons.

Compare power plants

Registry, engineering, and operating metrics shown on a consistent EIA basis.

Metric	York Energy Center York County	Hay Road New Castle County
Capacity	1,449.4 MW	1,098.2 MW
Technology	Natural Gas Fired Combined Cycle	Natural Gas Fired Combined Cycle
Operator	Calpine Mid-Merit LLC	Calpine Mid-Atlantic Generation LLC
Operating units	7	8
Latest 12-month generation	9.00 TWh	2.41 TWh
Latest complete-year capacity factor	69.2% (2025)	22.6% (2025)
National technology rank	#24 of 538	#80 of 538
Latest EIA report	2026-06	2026-06

Generation comes from EIA-923. Capacity, unit counts, technology, and reporting relationships come from EIA-860. Incomplete reporting years are excluded from capacity-factor comparisons.