Sunflower
1,434.8 MW hybrid in San Bernardino, CA · In queue since April 2023 · Proposed COD March 2031
1,434.8 MW
Capacity
2
Components
Solar + Battery
3y 1m
In Queue
Not Started
IA Status
COD target: 2031
Total Duration
7y 11m
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 not yet executed
Typical: 30–60 days (negotiation)
Proposed COD: 2031-03-01
The proposed Sunflower project is a 1434.8 MW hybrid solar and battery energy storage development in San Bernardino County, California. The project, located within the CAISO region and interconnected with Southern California Edison (SCE), consists of 717.4 MW of solar photovoltaic generation and 717.4 MW of battery energy storage.
The project is listed in the CAISO interconnection queue as CAISO-54903, with a queue entry date of April 17, 2023, and a proposed commercial operation date of March 1, 2031. As of the latest data, the interconnection agreement (IA) status is "Not Started". The point of interconnection (POI) is LUGO-PISGAH NO.2. The Sunflower project has been mentioned in recent news coverage.
Generated from interconnection queue and public data sources
State
CA
County
San Bernardino
Grid Region
CAISO (California)
Market
ISO/RTO Member
Developer
—
Utility
SCE
Entity
CAISO
Service Type
—
Point of Interconnection
LUGO-PISGAH NO.2
Data Source
LBNL
- ISO / RTO
- CAISO
- Trading Hub
- TH_ZP26_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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