Paloma Solar Hybrid — Plant Summary
- EIA Plant ID
- 57562
- Capacity
- 34 MW
- Primary Fuel
- Battery Storage
- Technology
- Batteries, Solar Photovoltaic
- Status
- Operating
- Location
- Maricopa, AZ
- Operating Since
- 2011
- Generators
- 2
- Operator
- Arizona Public Service Co
- Parent Company
- Pinnacle West Capital
- Annual Generation
- 31,850 MWh
- Capacity Factor
- 10.7%
- Balancing Authority
- Arizona Public Service Company
- ISO/RTO
- —
- NERC Region
- WECC
Paloma Solar Hybrid
OperatingBESSSolarHybrid
Ranked #48 of 55 BESS plants in AZ#433 of 837 nationally
34 MW Batteries (17 MW) + Solar Photovoltaic (17 MW) operating in Maricopa, AZ — Arizona Public Service Company
EIAGEMWD
34 MW
Nameplate Capacity
2
Generators
units
Hybrid (2)
Technology
Batteries + Solar Photovoltaic
2011
Operating Since
Location
Coordinates
33.0211, -112.6614
County
Maricopa, AZ
Nearby Plants
- Palaau Power HybridDistillate Oil17.1 MW · 0.5 km
- Cotton Center Solar HybridBESS34 MW · 1.5 km
- Stratford Solar Center, LLCSolar15 MW · 1.6 km
Ownership & Operator
| Field | EIA | GEM | Wikidata |
|---|---|---|---|
| Operator | Arizona Public Service Co | Arizona Public Service | — |
| Owner(s) | Arizona Public Service Co | Pinnacle West Capital | — |
| Status | Operating | operating | — |
Ownership Chain
About
Paloma Solar Hybrid is a 34 MW hybrid power plant located in Maricopa County, Arizona. The plant, which began operating in 2011, is owned by Pinnacle West Capital and operated by Arizona Public Service Co. It utilizes both solar photovoltaic technology and batteries, with a total of two generators. The battery energy storage system (BESS) has a capacity of 51 MWh and a duration of 3 hours, using lithium-ion battery chemistry (LIB). The solar array uses a fixed tilt tracking system.
The plant's primary fuel source is listed as "MWH". In the most recent year of data, Paloma Solar Hybrid generated 31,850 MWh, resulting in a capacity factor of 10.7%. The plant operates within the Arizona Public Service Company balancing authority and the Western Electricity Coordinating Council (WECC) NERC region. Paloma Solar Hybrid is ranked 59th out of 68 power plants in Arizona and 644th out of 1205 nationally. Financial data indicates an installed cost of $3,886.53 per kW.
Generated from EIA, GEM, and public data sources
Engineering & Generators
Grid Context
NERC Region
WECC
Balancing Authority
Arizona Public Service Company
Grid Voltage
12.5 kV
Regulatory Status
RE
Entity Type
Investor-Owned Utility
Sector
Electric Utility
Generation
1.3K MWh
Net Discharge
31.9K MWh
Annual Net Energy
10.7%
Capacity Factor
Jan 2022 – Dec 2024
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.
Financial DataBeta
Source: FERC Form 1, LBNL Utility-Scale SolarHIGH
$4,113/kW
Installed Cost
Arizona Public Service Company
Reporting Utility
Cumulative Installed Cost
Per-Unit Cost Trends
Pricing & Market Data
This plant is outside organized wholesale electricity markets (ISOs/RTOs). Nodal pricing data is not available.
News & Articles (2)Beta
Regulatory·permitting
APS seeks license extension for Palo Verde Nuclear Plant
Arizona Public Service (APS) plans to renew operating licenses for all three units at Palo Verde Generating Station, extending operations to the mid-2060s, ensuring continued energy supply.
APS (operator)
Power Engineering·1 weeks ago
General
DOE nixes $1.8B loan to Arizona Public Service for transmission, renewables and storage
Additional de-obligations are in process but cannot be publicly disclosed until finalized,” said Olivia Tinari, deputy press secretary for...
Utility Dive·4 weeks ago
Last updated 2026-03-25
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