Compare power plants

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

Metric	Dallman Sangamon County	Muscatine Plant #1 Muscatine County
Capacity	230.1 MW	275.5 MW
Technology	Conventional Steam Coal	Conventional Steam Coal
Operator	City of Springfield - (IL)	Board of Water Electric & Communications
Operating units	4	4
Latest 12-month generation	823.0 GWh	743.1 GWh
Latest complete-year capacity factor	44.7% (2025)	31.0% (2025)
National technology rank	#108 of 206	#147 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	Dallman Sangamon County	Muscatine Plant #1 Muscatine County
Capacity	230.1 MW	275.5 MW
Technology	Conventional Steam Coal	Conventional Steam Coal
Operator	City of Springfield - (IL)	Board of Water Electric & Communications
Operating units	4	4
Latest 12-month generation	823.0 GWh	743.1 GWh
Latest complete-year capacity factor	44.7% (2025)	31.0% (2025)
National technology rank	#108 of 206	#147 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.