In Riverside County, California (CA). The map on this page is placed at the coordinates EIA files for the plant, which locate the site rather than any individual unit.

8 MW of nameplate capacity across 4 units, as of the EIA-860M release for 2026-07.

EIA-860M names Arizona Electric Pwr Coop Inc as the reporting entity. That is the operator of record on the survey, which is not always the ultimate owner.

Is this the same as SunAnza LLC?

Probably, but EIA-860M does not say. The survey records a plant name and a reporting entity — Arizona Electric Pwr Coop Inc here — not the project company that holds the asset. Project companies are commonly registered as an LLC carrying the plant's name, so a search for "SunAnza LLC" usually means this site. This page shows only what EIA files, and does not assert a corporate structure it cannot see.

Is SunAnza still running?

EIA-860M files it as "Operating" for 2026-07. Statuses change monthly, and this page follows the monthly release.

SunAnza

SunAnza is a 8 MW battery storage project in Riverside County, California, operated by Arizona Electric Pwr Coop Inc. EIA-860M lists 4 generating units here, inside CAISO. Its units entered service between 2017 and 2023.

As of 2026-07 (inventory dated 2026-07-31) · EIA-860M Preliminary Monthly Electric Generator Inventory · eia.gov/…/july_generator2026.xlsx · eia.gov/…/eia860m

Nameplate capacity: 7.8 MW; 7.8 MW net summer
Generating units: 4
In service: 2017–2023
EIA plant ID: 60791

Where it is

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County: Riverside County, California
Coordinates: 33.5553, -116.6396
Balancing authority: CISO
Sector: Electric Utility

Units, technology and status

Operator of record: Arizona Electric Pwr Coop Inc
Primary energy source: Battery
Technologies: Batteries, Solar Photovoltaic
Status: Operating

This site runs on more than one energy source. EIA-860M capacity splits: Battery 4 MW, Solar 3 MW. It is filed here under Battery, the source with the most capacity.

Every plant Arizona Electric Pwr Coop Inc reports to EIA →

SunAnza: FAQ

Where is SunAnza?: In Riverside County, California (CA). The map on this page is placed at the coordinates EIA files for the plant, which locate the site rather than any individual unit.
How big is SunAnza?: 8 MW of nameplate capacity across 4 units, as of the EIA-860M release for 2026-07.
Who owns SunAnza?: EIA-860M names Arizona Electric Pwr Coop Inc as the reporting entity. That is the operator of record on the survey, which is not always the ultimate owner.
Is this the same as SunAnza LLC?: Probably, but EIA-860M does not say. The survey records a plant name and a reporting entity — Arizona Electric Pwr Coop Inc here — not the project company that holds the asset. Project companies are commonly registered as an LLC carrying the plant's name, so a search for "SunAnza LLC" usually means this site. This page shows only what EIA files, and does not assert a corporate structure it cannot see.
Is SunAnza still running?: EIA-860M files it as "Operating" for 2026-07. Statuses change monthly, and this page follows the monthly release.