Desert Star Hybrid

Desert Star Hybrid is a 20 MW battery storage project in Maricopa County, Arizona, operated by Arizona Public Service Co. EIA-860M lists 2 generating units here. Its units entered service between 2015 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
20 MW
20 MW net summer
Generating units
2
In service
2015–2023
EIA plant ID
59444

Where it is

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County
Maricopa County, Arizona
Coordinates
33.145, -112.66
Balancing authority
AZPS
Sector
Electric Utility

Units, technology and status

Operator of record
Arizona Public Service Co
Primary energy source
Battery
Technologies
Batteries, Solar Photovoltaic
Status
Operating

This site runs on more than one energy source. EIA-860M capacity splits: Battery 10 MW, Solar 10 MW. It is filed here under Battery, the source with the most capacity.

Every plant Arizona Public Service Co reports to EIA →

Desert Star Hybrid: FAQ

Where is Desert Star Hybrid?
In Maricopa County, Arizona (AZ). 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 Desert Star Hybrid?
20 MW of nameplate capacity across 2 units, as of the EIA-860M release for 2026-07.
Who owns Desert Star Hybrid?
EIA-860M names Arizona Public Service Co 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 Desert Star Hybrid LLC?
Probably, but EIA-860M does not say. The survey records a plant name and a reporting entity — Arizona Public Service Co 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 "Desert Star Hybrid LLC" usually means this site. This page shows only what EIA files, and does not assert a corporate structure it cannot see.
Is Desert Star Hybrid still running?
EIA-860M files it as "Operating" for 2026-07. Statuses change monthly, and this page follows the monthly release.