Battery Storage
514.8 MW storage in Middlesex, MA · In queue since June 2024 · Proposed COD January 2027
514.8 MW
Capacity
1
Components
Battery
1y 9m
In Queue
System Impact Study
IA Status
COD target: 2027
Total Duration
2y 7m
Interconnection request submitted to ISO/RTO
ISO-NE is transitioning to cluster studies per FERC Order 2023.
Typical: 25–30 months (recent)
Interconnection agreement not yet executed
Typical: 30–60 days (negotiation)
Proposed COD: 2027-01-31
State
MA
County
Middlesex
Region
ISO-NE
Developer
—
Utility
—
Entity
ISO-NE
Point of Interconnection
The Primary Point of Interconnection will be a direct interconnection will be located on the IC_x0019_s property (Lat, long: 4241'23.38"N, 7126'20.43"W) by tapping the 345-kV Line 326-2 (Sandy Pond-Lawrence Rd), owned by RI_NGRID, at approx. 8.4 miles from the 345-kV Lawerence Rd Substation.
Data Source
LBNL + Live
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Last updated 2026-03-26