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600 MW Batteries (300 MW) + Solar Photovoltaic (300 MW) operating in Pinal, AZ — Arizona Public Service Company
600 MW
Nameplate Capacity
2
Generators
units
Hybrid (2)
Technology
Batteries + Solar Photovoltaic
2025
Operating Since
Coordinates
33.1606, -111.3692
County
Pinal, AZ
Nearby Plants
Owner data does not fully agree across sources.
EIA typically reports the operating utility, while GEM resolves to the financial owner or parent corporation. Both can be correct.
| Field | EIA | GEM | Wikidata |
|---|---|---|---|
| Operator | BOCA bn, LLC | Cordelio Power; BrightNight | — |
| Owner(s) | Cordelio BNC Holdings, LLC, WestDevCo bn, LLC | Cordelio Power; BrightNight | — |
| Status | Operating | operating | — |
GEM identifies the owner as Cordelio Power; BrightNight
This entity is not yet in the GEM ownership database — chain unavailable.
Box Canyon is a 600 MW hybrid power plant located in Pinal County, Arizona. The facility, which combines solar photovoltaic and battery storage technologies, began operating in 2025. It is owned and operated by BOCA bn, LLC. The plant's primary fuel source is listed as MWH, reflecting its reliance on electricity from the solar array and batteries. Box Canyon is connected to the Arizona Public Service Company balancing authority within the Western Electricity Coordinating Council (WECC) NERC region.
In its most recent year of operation, Box Canyon generated 506,892 MWh of electricity, achieving a capacity factor of 16.5%. The solar portion of the plant utilizes a fixed tilt tracking system. Box Canyon is ranked as the 11th largest power plant out of 47 in Arizona, and 45th out of 514 nationally. Financial data indicates that the plant has a power purchase agreement (PPA) price of $26.92 per MWh, as reported to FERC.
Generated from EIA, GEM, and public data sources
Grid Region
Mountain West
Market
WEIM Participant
NERC Region
WECC — Western Electricity Coordinating Council
Balancing Authority
46.7K MWh
Net Discharge
506.9K MWh
Annual Net Energy
16.5%
Capacity Factor
Positive values indicate net discharge (generation exceeds station load). Negative values indicate net charging. Pure battery storage plants are typically net negative due to round-trip efficiency losses.
BOCA bn, LLC · Data from 2025
$26.9/MWh
PPA Price
This plant's balancing authority participates in CAISO's Western Energy Imbalance Market (WEIM). Direct nodal pricing data is not yet available.
Last updated 2026-03-26
View all 8 articlesArizona Public Service Company (AZPS)
Grid Voltage
230.0 kV
Regulatory Status
NR — Non-Regulated
Entity Type
Independent Power Producer
Sector
IPP Non-CHP