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600 MW Batteries (300 MW) + Solar Photovoltaic (300 MW) planned in Maricopa, AZ
600 MW
Nameplate Capacity
2
Generators
units
Hybrid (2)
Technology
Batteries + Solar Photovoltaic
Planned: —
Planned Operation
Coordinates
33.4970, -113.0514
County
Maricopa, AZ
Nearby Plants
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| Field | EIA | GEM | Wikidata |
|---|---|---|---|
| Operator | DESA bn, LLC | — | — |
| Owner(s) | Cordelio BNC Holdings, LLC, WestDevCo bn, LLC, WestDevco, LLC | — | — |
| Status | Planned | pre-construction | — |
Desert Sand BESS is a 600 MW hybrid power plant located in Maricopa County, Arizona. The plant is owned and operated by DESA bn, LLC. It utilizes both battery storage and solar photovoltaic technologies, with electricity as its primary fuel source (MWH). The facility consists of two generators. Desert Sand BESS operates within the Arizona Public Service Company balancing authority and the Western Electricity Coordinating Council (WECC) NERC region.
The plant is a significant energy asset in Arizona, ranking as the 14th largest out of 47 power plants in the state. Nationally, it holds a rank of 50 out of 514 plants. The solar component of the hybrid plant uses a fixed tilt tracking system. The plant's development and operation have been the subject of 5 news articles, with coverage focusing on industry trends and financial deals related to the facility.
Generated from EIA, GEM, and public data sources
Grid Region
Mountain West
Market
WEIM Participant
NERC Region
WECC — Western Electricity Coordinating Council
Balancing Authority
Arizona Public Service Company (AZPS)
Grid Voltage
500.0 kV
Regulatory Status
NR — Non-Regulated
Entity Type
Independent Power Producer
Sector
IPP Non-CHP
No generation data available for this plant.
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2023
$1,361/kW
Est. Construction Cost
Total estimated cost: $816.6M
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This plant's balancing authority participates in CAISO's Western Energy Imbalance Market (WEIM). Direct nodal pricing data is not yet available.
No wholesale contracts disclosed in FERC EQR for this plant.
FERC EQR captures bilateral wholesale energy + capacity contracts ≥$1M/yr filed quarterly by jurisdictional sellers — covers renewable PPAs, thermal energy sales agreements, capacity contracts, and tolling agreements alike. Many plants don't appear: regulated-utility output flows to ratepayers via cost-of-service rather than bilateral contracts; small projects fall below the filing threshold; tax-equity-financed renewables route offtake to investors not utilities; merchant plants sell into ISO clearing markets without bilateral contracts. News-extracted buyer facts (below) may surface contracts disclosed only through announcements.
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