The 73.5-metre (240-foot) blades, along with the tower sections that have already been assembled at Deepwater’s ProvPort facility, will be transported out to the Block Island site in August.
Local stevedores began offloading the blades on 28 June, Deepwater says.
Meanwhile, Deepwater Wind says it is making progress with the project’s cabling.
A 6.5-mile (10.5km) cable connecting the wind farm to Block Island itself is already installed, and landfall was recently made with the 17-mile cable connecting Block Island to mainland Rhode Island.