GE Vernova's defective blades cost $853M and stalled the first US offshore wind farm

In July 2024 a blade broke off a Haliade-X turbine at Vineyard Wind, the first large-scale offshore wind farm in the United States, sending fibreglass debris onto Nantucket beaches and halting construction for six months. GE Vernova's root-cause analysis found the failure traced to a manufacturing deviation at its Gaspé, Quebec plant, where staff had been pressured to falsify quality-assurance data.

GE's own review concluded that 68 of the 72 blades made at Gaspé were defective. The company fired more than 40 employees at the plant and replaced all 72 Gaspé blades with units made at its Cherbourg, France factory.

The bill was enormous. GE Vernova took $853M in cumulative costs from the defective blades. It also disputed a $1.3B contract with the project owner, and after set-offs still owed Vineyard Wind $545M — which Vineyard Wind sued in April 2026 to stop GE from walking away. In July 2025 GE agreed to pay Nantucket $10.5M over the economic impact of the debris.

The failure was a decision about cost and quality: a manufacturing plant cut corners on bonding, and staff were told to falsify the QA records that would have caught it. The hub-and-spoke lesson is that a single factory's defect became a flagship project's years-long delay and a nine-figure charge.