Compare power plants

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

Metric	Sunlight Storage II Riverside County	Peregrine Energy Storage LLC San Diego County
Capacity	230 MW	200 MW
Technology	Batteries	Batteries
Operator	Sunlight Storage II	Peregrine Energy Storage, LLC
Operating units	1	1
Latest 12-month generation	278.9 GWh	141.3 GWh
Latest complete-year capacity factor	—	—
National technology rank	#35 of 962	#48 of 962
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	Sunlight Storage II Riverside County	Peregrine Energy Storage LLC San Diego County
Capacity	230 MW	200 MW
Technology	Batteries	Batteries
Operator	Sunlight Storage II	Peregrine Energy Storage, LLC
Operating units	1	1
Latest 12-month generation	278.9 GWh	141.3 GWh
Latest complete-year capacity factor	—	—
National technology rank	#35 of 962	#48 of 962
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.