The collapse of a giant wind turbine blade off the Massachusetts coast confirmed Peter Kaizer’s worst fears about the dangers a new clean energy business could pose to fishermen like him.

Jagged pieces of fiberglass and other materials from the shattered blade drifted with the tide, forcing officials to close beaches on Nantucket and leaving Mr. Kaizer worried about the threat the fragments might pose to his vessel and other fishing boats, especially at night when the debris would be harder to avoid.

“All these small boats could be subject to damage,” Mr. Kaizer said. “Everyone wants this green legacy, but at the cost of what?”

The blade, which was more than 300 feet long, failed in July, but the repercussions are still unfolding at the $4 billion project that it came from — Vineyard Wind 1. Developers had hoped to finish the project this summer, making it the first large-scale wind farm

Keep reading this article on The New York Times Energy & Environment.