Desert Star Hybrid
Solar and battery storage project in Maricopa County, Arizona. 20 MW of nameplate capacity across 2 generators, operated by Arizona Public Service Co.
Also known as EIA plant 59444
This project groups Desert Star Hybrid (EIA 59444). EIA reports them as separate plants.
Analyst: free account, 1 question a day.
Key facts
- Capacity
- 20 MWSolar 10.0 · Battery storage 10.0
- Generators
- 2 operatingEIA-860M, August 2026
- Operating since
- September 2015First generator online
- Operator
- Arizona Public Service CoEIA operator ID 803
- Grid
- AZPSBalancing authority AZPS
- Price nodes
- None linkedNo verified ISO node
- Location
- Maricopa County, AZ33.1450, −112.6600
- EIA plant ID
- 59444EIA plant page
Data as of EIA-860M August 2026 (published 2026-09-24). Capacity is nameplate, not live output.
How much power Desert Star Hybrid produces
Free · EIA-923Net generation, 2025
24.2 GWh
24,237 MWh, final
Capacity factor, 2025
30.0%
2024: 35.4%
January to July 2026
Not reported
Provisional. 0 of 7 months reported
Range, 2016 to 2025
8.9–32.4
GWh a year. Low 2016, high 2020
| Year | Net generation, MWh | Capacity factor | Months reported |
|---|---|---|---|
| 2000 | Not reported | Not reported | 0 of 12 |
| 2001 | Not reported | Not reported | 0 of 12 |
| 2002 | Not reported | Not reported | 0 of 12 |
| 2003 | Not reported | Not reported | 0 of 12 |
| 2004 | Not reported | Not reported | 0 of 12 |
| 2005 | Not reported | Not reported | 0 of 12 |
| 2006 | Not reported | Not reported | 0 of 12 |
| 2007 | Not reported | Not reported | 0 of 12 |
| 2008 | Not reported | Not reported | 0 of 12 |
| 2009 | Not reported | Not reported | 0 of 12 |
| 2010 | Not reported | Not reported | 0 of 12 |
| 2011 | Not reported | Not reported | 0 of 12 |
| 2012 | Not reported | Not reported | 0 of 12 |
| 2013 | Not reported | Not reported | 0 of 12 |
| 2014 | Not reported | Not reported | 0 of 12 |
| 2015 | 14,817 | 47.2% | 4 of 12 |
| 2016 | 8,924 | 10.2% | 12 of 12 |
| 2017 | 17,273 | 19.7% | 12 of 12 |
| 2018 | 29,690 | 33.9% | 12 of 12 |
| 2019 | 31,006 | 35.4% | 12 of 12 |
| 2020 | 32,431 | 36.9% | 12 of 12 |
| 2021 | 31,627 | 36.1% | 12 of 12 |
| 2022 | 30,912 | 35.3% | 12 of 12 |
| 2023 | 28,399 | Not reported | 11 of 12 |
| 2024 | 29,163 | 35.4% | 12 of 12 |
| 2025 | 24,237 | 30.0% | 12 of 12 |
| 2026 (provisional, partial year) | Not reported | Not reported | 0 of 7 |
* 2026 covers January to July and is provisional. Capacity factor is net generation divided by nameplate capacity times the hours of each reported month.
Power prices and basis
Free accountNo verified ISO price node is linked to this plant, or its price history could not load.
Emissions
Free · EPA CAMPDNo EPA emissions units are linked to this plant.
Water use
Free · EIA-923 cooling, USGSNo EIA cooling-water record for this plant in 2024. Plants without steam cooling, such as wind, solar and batteries, do not report cooling water.
Generators
Free · EIA-860M| Generator | Technology | Nameplate MW | Online since |
|---|---|---|---|
| DS10M | Batteries | 10.0 | February 2023 |
| PV1 | Solar Photovoltaic | 10.0 | September 2015 |
Ownership and offtake
ProOwnership and offtake are part of Pro
Owners and their shares, parent companies, and power purchase agreements with their buyers. EIA-860M lists Arizona Public Service Co as the operator, which is not always the owner.
Modeled data
ProPro adds modeled values for this plant. Everything above stays free.
Modeled curtailment
A range, not one number. The lower bound counts hours inside the production tax credit window; the upper bound is the no-credit case.
Expected vs reported generation
Monthly modeled expected output and physical potential next to EIA-923 reported output.
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Power plants near Desert Star Hybrid
More plants operated by Arizona Public Service Co
Questions about Desert Star Hybrid
How much power does Desert Star Hybrid produce?
Desert Star Hybrid reported 24,237 MWh (24.2 GWh) of net generation in 2025, a 30.0% capacity factor on 20 MW of nameplate capacity.
Where is Desert Star Hybrid?
Desert Star Hybrid is in Maricopa County, Arizona, at 33.1450, −112.6600. It is in the Arizona Public Service Company balancing area (AZPS).
Who operates Desert Star Hybrid?
EIA-860M for August 2026 lists Arizona Public Service Co as the operator (EIA operator ID 803). The operator is not always the owner.
Is Desert Star Hybrid a solar or a battery storage plant?
Both. Solar capacity totals 10 MW and battery storage capacity totals 10 MW.
When did Desert Star Hybrid start operating?
Its first generator began operating in September 2015, according to EIA-860M.
Sources
- EIA-860 2025 (final) and EIA-860M August 2026: plant, generators, capacity, operator and location
- EIA-923 monthly net generation, 2000 to July 2026 (2026 provisional)
Page updated 2026-10-04 from the InfraMap data build. Methodology · Data sources · EIA plant page