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Preliminary 2025 facility recordOperating

Marana, AZ · EIA plant 67503

Serrano

Serrano is a storage power facility in Marana, AZ, with 384 MW of operating capacity.

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Operating capacity384 MW2 operating generators
Proposed capacity0 MW0 proposed generators
UtilitySerrano Solar, LLCEIA-reported operator
Balancing authorityAZPSArizona Public Service Company

Capacity profile

Fuel and technology

Nameplate capacity
Operating
Storage214 MW
Solar170 MW
ProposedNo proposed capacity reported
Reported technologiesBatteriesSolar Photovoltaic

Nearby in AZ

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Source quality

Preliminary facility data

This page uses the EIA-860 2025 Early Release. EIA identifies the release as preliminary, so it should not be used for official state or national aggregation. Capacity is nameplate capacity, not real-time output or annual generation.

Read methodologyEIA-860 source