Compare power plants

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

Metric	Big Bend Dam Buffalo County	Oahe Hughes County
Capacity	538.3 MW	786.1 MW
Technology	Conventional Hydroelectric	Conventional Hydroelectric
Operator	USACE-Omaha	USACE-Omaha
Operating units	8	7
Latest 12-month generation	813.0 GWh	2.19 TWh
Latest complete-year capacity factor	17.2% (2024)	31.7% (2024)
National technology rank	#25 of 1,349	#17 of 1,349
Latest EIA report	2024-12	2024-12

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.