West Springfield 45 MW BESS
BetaActiveBatteryISO-NELBNL + Live
45 MW storage in Hampden, MA · In queue since June 2022 · Proposed COD May 2026
45 MW
Capacity
1
Components
Battery
3y 9m
In Queue
IA Executed
IA Status
COD target: 2026
Interconnection Timeline
Total Duration
3y 11m
Construction75%
Queue EntryJun 8, 2022
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: 2026-05-08
Project Details
State
MA
County
Hampden
Region
ISO-NE
Developer
—
Utility
ISO-NE
Entity
ISO-NE
Point of Interconnection
West Springfield Station, 115kV Bus (existing 8C-3X 140 MVA transformer; position WS#2).
Data Source
LBNL + Live
No news available for this project.