Compare power plants

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

Metric	Dresden Generating Station Grundy County	Donald C Cook Berrien County
Capacity	2,018.6 MW	2,285.3 MW
Technology	Nuclear	Nuclear
Operator	Constellation Nuclear	Indiana Michigan Power Co
Operating units	2	2
Latest 12-month generation	15.12 TWh	18.50 TWh
Latest complete-year capacity factor	86.0% (2025)	87.8% (2025)
National technology rank	#22 of 54	#18 of 54
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	Dresden Generating Station Grundy County	Donald C Cook Berrien County
Capacity	2,018.6 MW	2,285.3 MW
Technology	Nuclear	Nuclear
Operator	Constellation Nuclear	Indiana Michigan Power Co
Operating units	2	2
Latest 12-month generation	15.12 TWh	18.50 TWh
Latest complete-year capacity factor	86.0% (2025)	87.8% (2025)
National technology rank	#22 of 54	#18 of 54
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.