Hecate Energy Eastern Ave Energy Center
BetaActiveBatteryISO-NELBNL + Live
250 MW storage in Suffolk, MA · In queue since April 2021 · Proposed COD November 2026
250 MW
Capacity
1
Components
Battery
4y 11m
In Queue
IA Executed
IA Status
COD target: 2026
Interconnection Timeline
Total Duration
5y 7m
Construction75%
Queue EntryApr 8, 2021
Interconnection request submitted to ISO/RTO
TCS Study
ISO-NE is transitioning to cluster studies per FERC Order 2023.
Typical: 25–30 months (recent)
Interconnection Agreement
Interconnection agreement executed — binding commitment to build
Typical: 30–60 days (negotiation)
ConstructionCurrent
Project under construction
Typical: 6–18 months
Commercial Operation
Proposed COD: 2026-11-09
Project Details
State
MA
County
Suffolk
Region
ISO-NE
Developer
—
Utility
ISO-NE
Entity
ISO-NE
Point of Interconnection
Sta 488 Chelsea 115 kV substation
Data Source
LBNL + Live
No news available for this project.