Compare power plants

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

Metric	Rockport Spencer County	Gavin Power, LLC Gallia County
Capacity	2,600 MW	2,600 MW
Technology	Conventional Steam Coal	Conventional Steam Coal
Operator	Indiana Michigan Power Co	Gavin Power, LLC
Operating units	2	2
Latest 12-month generation	9.22 TWh	12.91 TWh
Latest complete-year capacity factor	42.3% (2025)	56.6% (2025)
National technology rank	#8 of 206	#8 of 206
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	Rockport Spencer County	Gavin Power, LLC Gallia County
Capacity	2,600 MW	2,600 MW
Technology	Conventional Steam Coal	Conventional Steam Coal
Operator	Indiana Michigan Power Co	Gavin Power, LLC
Operating units	2	2
Latest 12-month generation	9.22 TWh	12.91 TWh
Latest complete-year capacity factor	42.3% (2025)	56.6% (2025)
National technology rank	#8 of 206	#8 of 206
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.