Bay State Wind 4 Offshore Wind

ISO-NE-944BetaActiveOffshore WindISO-NELBNL + Live

1,200 MW generation in MA · In queue since December 2019 · Proposed COD November 2033

1,200 MW

Capacity

Components

Offshore Wind

6y 5m

In Queue

IA Executed

IA Status

COD target: 2033

Status

Latest milestoneEnvironmental Impact Statement review paused · 2025-01-15Bureau of Ocean Energy Management (.gov) · 2025-01-14

Expected COD2030WBUR · 2025-02-28

Delay reasonfederal permit review uncertainty under Trump administration executive ordersWBUR · 2025-02-28

Interconnection

Total Duration

13y 11m

Construction75%

Queue EntryDec 18, 2019

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: 36–60 months

Commercial Operation

Proposed COD: 2033-11-04

About

Bay State Wind 4 Offshore Wind is a proposed 1200 MW offshore wind generation project located in Massachusetts. The project is listed in the ISO-NE interconnection queue as queue ID ISO-NE-944, with an interconnection queue entry date of December 18, 2019, and a proposed commercial operation date of November 4, 2033. The interconnection agreement (IA) for the project has been executed.

The proposed project is slated to connect to the National Grid Brayton Point 345kV point of interconnection. Bay State Wind 4 Offshore Wind has been the subject of recent news coverage, with 14 articles appearing in the press.

Generated from interconnection queue and public data sources

ISO-NE Queue

Project Details

State

County

—

Grid Region

ISO New England

Market

ISO/RTO Member

Developer

—

Utility

ISO-NE

Entity

ISO-NE

Service Type

—

Point of Interconnection

National Grid Brayton Point 345kV

Data Source

LBNL + Live

DeveloperVineyard Wind±E&E News by POLITICO · 2023-01-19

AgencyTrump administration±WPRI.com · 2025-08-22

RulingSuspension±WPRI.com · 2025-08-22

OfftakerMassachusettsNantucket Current · 2024-12-20

Market Context

Approximate

ISO / RTO: ISO-NE
Trading Hub: .H.INTERNAL_HUB
Hub Confidence: HIGH
Nearest Node (Estimated): LD.HATHAWAY23
POI Substation: Brayton Point 115kV Substation

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.

News & Articles (10)Beta