Compare power plants

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

Metric	Edwards Sanborn E4 Kern County	Edwards Sanborn E1B Kern County
Capacity	248.9 MW	290.4 MW
Technology	Batteries, Solar Photovoltaic	Batteries, Solar Photovoltaic
Operator	Terra-Gen Operating Co-Hybrid	Terra-Gen Operating Co-Hybrid
Operating units	2	2
Latest 12-month generation	334.6 GWh	356.0 GWh
Latest complete-year capacity factor	14.7% (2025)	13.9% (2025)
National technology rank	#324 of 7,234	#254 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	Edwards Sanborn E4 Kern County	Edwards Sanborn E1B Kern County
Capacity	248.9 MW	290.4 MW
Technology	Batteries, Solar Photovoltaic	Batteries, Solar Photovoltaic
Operator	Terra-Gen Operating Co-Hybrid	Terra-Gen Operating Co-Hybrid
Operating units	2	2
Latest 12-month generation	334.6 GWh	356.0 GWh
Latest complete-year capacity factor	14.7% (2025)	13.9% (2025)
National technology rank	#324 of 7,234	#254 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.