Energy Storage
170 MW storage in Norfolk, MA · In queue since April 2019 · Proposed COD July 2027
170 MW
Capacity
1
Components
Battery
7y 1m
In Queue
IA Executed
IA Status
COD target: 2027
Total Duration
8y 3m
Interconnection request submitted to ISO/RTO
ISO-NE is transitioning to cluster studies per FERC Order 2023.
Typical: 25–30 months (recent)
Interconnection agreement executed — binding commitment to build
Typical: 30–60 days (negotiation)
Project under construction
Typical: 6–18 months
Proposed COD: 2027-07-26
The proposed Energy Storage project is a 170 MW battery energy storage system located in Norfolk County, Massachusetts. The project is in the ISO-NE interconnection queue as queue ID ISO-NE-877, with an interconnection queue entry date of April 11, 2019. The proposed commercial operation date is July 26, 2027, and the interconnection agreement has been executed.
The point of interconnection is National Grid's South Wrentham 115kV substation. The Energy Storage project has been the subject of recent news coverage, with four articles categorized as regulatory matters.
Generated from interconnection queue and public data sources
State
MA
County
Norfolk
Grid Region
ISO New England
Market
ISO/RTO Member
Developer
—
Utility
ISO-NE
Entity
ISO-NE
Service Type
—
Point of Interconnection
National Grid's South Wrentham 115kV substation
Data Source
LBNL + Live
- ISO / RTO
- ISO-NE
- Trading Hub
- .H.INTERNAL_HUB
- Hub Confidence
- MEDIUM
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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