National Grid to build Block Island transmission line

UNITED STATES: Deepwater Wind has signed up National Grid to build the undersea transmission link for its 30MW Block Island demonstration project off the coast of Rhode Island.

The project, which could become the first offshore wind farm in US waters, will cost around $60 million and involves laying a 20-mile (32-kilometre) cable from Block Island that would make landfall at Scarborough State Beach in Narragansett.

National Grid will pay around $9.5 million for property options, surveys and permits.

Last month, the 30MW test offshore project moved a step closer to reality, with state authorities offering no objection to the plans. Rhode Island Coastal Resources Management Council, the leading permitting agency for the project, is still to hold a public hearing on the plans, but has issued this preliminary judgement.

Deepwater intends to use the 30MW Block Island project to provide a test case for an offshore wind farm of up to 200 turbines in Rhode Island federal waters following its victory last week in an auction for leasing rights there.