FinancingOperationalMarch 14, 2026

Vineyard Wind 1 — 800 MW offshore wind, offshore Massachusetts (62 turbines)

Vineyard Wind 1 completed physical construction on March 14, 2026, with installation of its final turbine — making it the largest US offshore wind project to complete construction. The 800 MW project off Martha's Vineyard, Massachusetts, is a joint venture of Avangrid and Copenhagen Infrastructure Partners. Commercial operations and turbine commissioning to follow. Project delivers power to Massachusetts grid.

Deal Value

800MW

Capacity

Offshore Wind

Technology

MA

Location

Deal Details

Deal Type
Project Finance
Seller / Sponsor
Vineyard Wind (Avangrid; Copenhagen Infrastructure Partners)
Buyer / Financier
Massachusetts utilities
Offtaker
Massachusetts utilities
Stage
Operational
ISO/RTO
ISO-NE

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