HEARTLAND 2
156.05 MW generation in Fresno, CA · In queue since May 2017 · Proposed COD June 2028
156.05 MW
Capacity
1
Components
Solar
8y 10m
In Queue
IA Executed
IA Status
Signed Dec 2023
Queue → IA
6y 7m
IA → COD
4y 6m
Total Duration
6y 7m
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: 12–24 months
Proposed COD: 2028-06-30
State
CA
County
Fresno
Region
CAISO
Developer
—
Utility
PGAE
Entity
CAISO
Point of Interconnection
Tranquility 230 kV
Data Source
LBNL + Live
California approves world’s largest solar + storage plant | Projects Weekly
California regulators have approved a milestone solar + storage project in Fresno County, kicking off this edition of Projects Weekly.
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Last updated 2026-03-26