Update June 2026 – Vineyard Wind 1, the first commercial-scale offshore wind farm in the U.S., is facing likely delays that could push its completion into 2026. Though originally slated to finish in 2024, recent developments—including an extended lease at New Bedford’s Marine Commerce Terminal—signal ongoing construction well beyond this year.
Despite parent company Iberdrola’s statement that completion is expected by late 2025, progress has been slow. As of June 2025, only four of the planned 62 turbines are delivering power to the grid.
While Vineyard Wind has overcome legal challenges and political headwinds, the scope of remaining work and the lease extension through mid-2026 suggest full operation may not happen until next year. The project remains vital to Massachusetts’ clean energy goals, but its timeline now appears far from certain.
In August 2003 our last update indicated that Avangrid, Inc announced that the Vineyard Wind 1 project successfully installed the first GE Haliade-X Wind Turbine Generator (WTG) for the nation’s first Vineyard Wind 1 project. The firm is a part of the Iberdrola Group as well as Copenhagen Infrastructure Partners (CIP), a global leader in green energy investing.
The finished turbine is made up of one tower, three blades, and one nacelle, and it is the biggest turbine in the Western hemisphere, with a nameplate capacity of 13 Megawatts and the ability to power over 6,000 houses and businesses in Massachusetts.
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The project will have 62 wind turbines that will create 806 Megawatts of power, enough to power more than 400,000 Massachusetts homes and businesses.
Vineyard Wind started offshore construction in late 2022, reached steel-in-the-water status in June, and finished the nation’s first offshore substation in July. The New Bedford Marine Commerce Terminal was under construction. Vineyard Wind inked the first Project Labour Agreement in the United States for an offshore wind project in July 2021, outlining the development of 500 union jobs through the project.
Details on Vineyard Wind 1
Vineyard Wind, an 806-megawatt project 15 miles off the coast of Martha’s Vineyard, will generate electricity for more than 400,000 homes and businesses in Massachusetts, create 3,600 Full Time Equivalent (FTE) job years, save customers $1.4 billion over the first 20 years of operation, and reduce carbon emissions by more than 1.6 million metric tonnes per year, the equivalent of taking 325,000 cars off the road annually.
“This completed turbine is a monument to the hard work and belief in our construction and project teams, as well as countless partners in our neighbouring communities,” stated Tim Evans, Partner and Head of North America for CIP. “Vineyard Wind is the future of American offshore wind, and it is a future full of clean, sustainable energy and enormous potential for job creation and carbon pollution reduction.” Offshore wind remains a key component of our investment plan, with the US market playing a key role.”
