Compare power plants

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

Metric	Solar Blue Kings County	Topaz Solar Farm San Luis Obispo County
Capacity	475 MW	585.9 MW
Technology	Batteries, Solar Photovoltaic	Solar Photovoltaic
Operator	Westlands Solar Blue	Topaz Solar Farms LLC
Operating units	2	5
Latest 12-month generation	646.5 GWh	969.2 GWh
Latest complete-year capacity factor	15.7% (2025)	19.8% (2025)
National technology rank	#76 of 7,234	#4 of 7,234
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	Solar Blue Kings County	Topaz Solar Farm San Luis Obispo County
Capacity	475 MW	585.9 MW
Technology	Batteries, Solar Photovoltaic	Solar Photovoltaic
Operator	Westlands Solar Blue	Topaz Solar Farms LLC
Operating units	2	5
Latest 12-month generation	646.5 GWh	969.2 GWh
Latest complete-year capacity factor	15.7% (2025)	19.8% (2025)
National technology rank	#76 of 7,234	#4 of 7,234
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.