Catclaw Solar — Plant Summary
- EIA Plant ID
- 68414
- Capacity
- 450 MW
- Primary Fuel
- Battery Storage
- Technology
- Batteries, Solar Photovoltaic
- Status
- Planned
- Location
- Maricopa, AZ
- Operating Since
- —
- Generators
- 2
- Operator
- 311SV 8me, LLC
- Parent Company
- —
- Balancing Authority
- Arizona Public Service Company
- ISO/RTO
- —
- NERC Region
- WECC
Catclaw Solar
PlannedBESSSolarHybridGEM: pre-construction
Ranked #15 of 55 BESS plants in AZ#53 of 837 nationally
450 MW Batteries (250 MW) + Solar Photovoltaic (200 MW) planned in Maricopa, AZ — Arizona Public Service Company
EIAGEM
450 MW
Nameplate Capacity
2
Generators
units
Hybrid (2)
Technology
Batteries + Solar Photovoltaic
Planned: —
Planned Operation
Location
Coordinates
33.5806, -112.6867
County
Maricopa, AZ
Nearby Plants
- Badger 1Solar14.8 MW · 14.9 km
- Buckeye Union HS District 201Solar3.3 MW · 20.9 km
- Northwest RegionalLandfill Gas3.2 MW · 22.5 km
Ownership & Operator
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 | 311SV 8me, LLC | DE Shaw Renewable Investments (DESRI) | — |
| Owner(s) | 311SV 8me, LLC | DE Shaw Renewable Investments (DESRI) | — |
| Status | Planned | pre-construction | — |
Ownership Chain
GEM identifies the owner as DE Shaw Renewable Investments (DESRI)
This entity is not yet in the GEM ownership database — chain unavailable.
About
Catclaw Solar is a 450 MW hybrid power plant located in Maricopa County, Arizona. The facility, identified by plant ID 68414, is owned and operated by 311SV 8me, LLC. It utilizes both solar photovoltaic technology and battery storage. The plant consists of two generators and employs a fixed tilt solar tracking system.
Catclaw Solar is interconnected to the Arizona Public Service Company balancing authority within the Western Electricity Coordinating Council (WECC) NERC region. It ranks as the 19th largest power plant in Arizona out of 47, and 80th nationally out of 514. The primary fuel source is listed as MWH, indicating electricity generation.
Generated from EIA, GEM, and public data sources
Engineering & Generators
Grid Context
NERC Region
WECC
Balancing Authority
Arizona Public Service Company
Grid Voltage
230 kV
Regulatory Status
NR
Entity Type
Independent Power Producer
Sector
IPP Non-CHP
Generation
No generation data available for this plant.
Financial Data
No financial data available for this plant.
Pricing & Market Data
This plant is outside organized wholesale electricity markets (ISOs/RTOs). Nodal pricing data is not available.
News & Articles (10)Beta
Industry·technology
Energy company launches massive project to deliver next-gen power to tens of thousands of US homes: 'Seamlessly integrated'
Imagine powering 40000 homes a year not with fossil fuels but with Arizona sunshine. That's the promise of the new Catclaw Solar and Storage...
Catclaw Solar and Storage (developer)
The Cool Down·8 months ago
Industry·corporate
Factor This finance and development roundup: AES, CleanChoice, DESRI, Earthrise, Origis, rPlus, Soltage
Do you ever feel like maybe you weren't hardwired to handle all of the stimuli that the modern world throws at you?
AES (other)CleanChoice (other)
Power Engineering·9 months ago
Grid·capacity addition
Construction begins on 1 GWh Arizona colocated battery storage site
New York-based DESRI's Catclaw project, in Buckeye, Arizona, is expected to generate enough electricity to power around 40000 homes per...
DESRI (developer)
ESS News·9 months ago
General
Avangrid switches on 57 MW Camino Solar in California | Projects Weekly
This edition of Projects Weekly highlights Avangrid's newest project in Kern County, California. Plus, we look at Geronimo Power's expanding...
Solar Builder·9 months ago
Last updated 2026-03-14
View all 10 articles