62.5 MW Batteries (10 MW) + Solar Photovoltaic (53 MW) operating in Maricopa, AZ — California Independent System Operator
62.5 MW
Nameplate Capacity
2
Generators
units
Hybrid (2)
Technology
Batteries + Solar Photovoltaic
2024
Operating Since
Coordinates
33.3265, -112.9190
County
Maricopa, AZ
Nearby Plants
| Field | EIA | GEM | Wikidata |
|---|---|---|---|
| Operator | Consolidated Edison Development Inc. | Consolidated Edison Development Inc. | — |
| Owner(s) | Consolidated Edison Development Inc. | Consolidated Edison Development Inc. | — |
| Status | Operating | operating | — |
GEM identifies the owner as Consolidated Edison Development Inc.
This entity is not yet in the GEM ownership database — chain unavailable.
Mesquite Solar 4, LLC is a hybrid solar and battery energy storage system (BESS) located in Maricopa County, Arizona. The plant, which began operating in 2024, has a total capacity of 62.5 MW and consists of two generators. The primary fuel source is listed as MWH, indicating solar photovoltaic generation. The facility is owned and operated by Consolidated Edison Development Inc. and utilizes single-axis solar tracking. The BESS component has a storage capacity of 47.7 MWh, providing 4.77 hours of duration and employing lithium-ion battery (LIB) chemistry.
The plant operates within the California Independent System Operator (CAISO) balancing authority and the Western Electricity Coordinating Council (WECC) NERC region. In its first year of operation, Mesquite Solar 4 generated 144,447 MWh, resulting in a capacity factor of 26.4%. Mesquite Solar 4 is ranked as the 53rd largest solar facility in Arizona out of 68, and 573rd nationally out of 1205. Financial data is available for the plant, sourced from Lawrence Berkeley National Laboratory (LBNL) solar data.
Generated from EIA, GEM, and public data sources
NERC Region
WECC
Balancing Authority
California Independent System Operator
Grid Voltage
230 kV
Regulatory Status
NR
Entity Type
Independent Power Producer
Sector
IPP Non-CHP
7.4K MWh
Latest Month
144.4K MWh
Annual Generation
26.4%
Capacity Factor
$42.3/MWh
LCOE (Levelized Cost)
Market Position
ISO/RTO Market
CAISO
LMP Node
MESQSLR2_7_N002
Pricing Hub
TH_SP15_GEN-APND
Location Type
Pricing Node
Node Source
Curated node match
Last updated 2026-03-14
View all articles