Compare power plants

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

Metric	Chaparral Springs Kern County	Edwards Sanborn E4 Kern County
Capacity	262 MW	248.9 MW
Technology	Batteries, Solar Photovoltaic	Batteries, Solar Photovoltaic
Operator	Leeward Asset Management, LLC	Terra-Gen Operating Co-Hybrid
Operating units	4	2
Latest 12-month generation	406.7 GWh	334.6 GWh
Latest complete-year capacity factor	18.0% (2025)	14.7% (2025)
National technology rank	#233 of 7,234	#324 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	Chaparral Springs Kern County	Edwards Sanborn E4 Kern County
Capacity	262 MW	248.9 MW
Technology	Batteries, Solar Photovoltaic	Batteries, Solar Photovoltaic
Operator	Leeward Asset Management, LLC	Terra-Gen Operating Co-Hybrid
Operating units	4	2
Latest 12-month generation	406.7 GWh	334.6 GWh
Latest complete-year capacity factor	18.0% (2025)	14.7% (2025)
National technology rank	#233 of 7,234	#324 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.