How to Build a Wind Farm Off the Coast of New York

The assembly line for South Fork begins miles away from the offshore site, at the State Pier in New London, Conn.

The project — which is a joint venture between Eversource, a New England utility, and Orsted, a Danish company — has been a global operation.

The biggest components, including turbine blades as long as a football field, are manufactured in Europe, where offshore wind farms are more prevalent.