Vineyard Wind 1 is an offshore wind farm under construction in U.S. federal waters in the Atlantic Ocean in Bureau of Ocean Energy Management-designated Lease Area OCS-A 0520, about 13 nautical miles (24 km; 15 mi) south of Martha's Vineyard and Nantucket, Massachusetts.

[9] The separate Vineyard Wind 2 project in Lease Area OCS-A 0522[10] was awarded a contract with Massachusetts for 800 MW in September 2024.

[11] The project is jointly owned by Copenhagen Infrastructure Partners and Iberdrola, through a subsidiary of Avangrid Renewables.

The Responsible Offshore Development Alliance representing fishing interests filed a federal lawsuit several months later disputing the approval,[28] and a group of Nantucket residents did so in January 2023.

[32][33] The developers have agreed to suspend construction during right whale activity in the area,[34] and University of New Hampshire monitors their sounds.

[37] Six beaches on Nantucket, MA, were closed after a wind-turbine blade from the offshore wind farm broke apart on July 13, 2024 sending fiberglass shards into the Atlantic Ocean and onto the nearby coast.