Cotton Center Solar Hybrid
Cotton Center Solar Hybrid is a 34 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 2011 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
- 34 MW
- 34 MW net summer
- Generating units
- 2
- In service
- 2011–2023
- EIA plant ID
- 57561
Where it is
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- County
- Maricopa County, Arizona
- Coordinates
- 33.0347, -112.6617
- 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 17 MW, Solar 17 MW. It is filed here under Battery, the source with the most capacity.
Cotton Center Solar Hybrid: FAQ
- Where is Cotton Center Solar 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 Cotton Center Solar Hybrid?
- 34 MW of nameplate capacity across 2 units, as of the EIA-860M release for 2026-07.
- Who owns Cotton Center Solar 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 Cotton Center Solar 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 "Cotton Center Solar Hybrid LLC" usually means this site. This page shows only what EIA files, and does not assert a corporate structure it cannot see.
- Is Cotton Center Solar Hybrid still running?
- EIA-860M files it as "Operating" for 2026-07. Statuses change monthly, and this page follows the monthly release.