WHITE WING RANCH SOLAR
400 MW hybrid in Yuma, AZ · In queue since April 2014 · Proposed COD June 2026
400 MW
Capacity
2
Components
Solar + Battery
12y 1m
In Queue
IA Executed
IA Status
COD target: 2026
Total Duration
12y 2m
Interconnection request submitted to ISO/RTO
CAISO uses cluster studies where projects are batched annually and studied together.
Typical: 36–48 months (IR to IA)
Interconnection agreement executed — binding commitment to build
Typical: 30–60 days (negotiation)
Project under construction
Typical: 18–30 months
Proposed COD: 2026-06-01
The White Wing Ranch Solar project is a proposed 400 MW hybrid solar and battery energy storage development in Yuma County, Arizona. The project, located within the California Independent System Operator (CAISO) region, consists of 200 MW of solar photovoltaic generation and 200 MW of battery storage. The project is interconnected to the San Diego Gas & Electric (SDGE) utility at the Hoodoo Wash Switchyard 500 kV.
The project entered the CAISO interconnection queue on April 30, 2014, assigned queue ID CAISO-1062. Its proposed commercial operation date is June 1, 2026, and the Interconnection Agreement (IA) has been executed. The White Wing Ranch Solar project has been the subject of recent news coverage.
Generated from interconnection queue and public data sources
State
AZ
County
Yuma
Grid Region
CAISO (California)
Market
ISO/RTO Member
Developer
—
Utility
SDGE
Entity
CAISO
Service Type
—
Point of Interconnection
Hoodoo Wash Switchyard 500 kV
Data Source
LBNL + Live
- ISO / RTO
- CAISO
- Trading Hub
- TH_SP15_GEN-APND
- Hub Confidence
- LOW
This project's market context is estimated from its Point of Interconnection. Hub and node assignments are approximate and based on geographic inference from the POI substation name.
Last updated 2026-03-26
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