Occupying 25 square miles, an area the size of Manhatthan, the Cape Wind project would be highly visible both day and night from Cape Cod and from the islands of Nantucket and Martha's Vineyard. The plant would dramatically alter the natural landscape and negatively impact several historic landmarks. From Popponessett in Mashpee, the wind plant would be just 4.8 miles offshore and from Hyannis, over 40% of the natural horizon would be marred by the presence of turbines.
The project would consist of 130 turbines, each 440' high with an above-water profile taller than the Statue of Liberty (305') and the Cape Cod Canal bridges (275'). Each massive turbine blade will be 182 feet long with a total diameter of 364' (rotating football field). The turbines would be connected to an electrical service platform by more than 66 miles of cable. The electrical service platform, 1/2 acre in size, equipped with a helicopter landing pad, holds 40,000 gallons of transformer oil and 1000 gallons of diesel fuel.
At night the project would look like LaGuardia Airport, complete with flashing red and amber lights and marked with foghorns.
There will be 2 different kinds of lighting:
FAA Lighting at the top of the masts: Single flashing red lights on 50 perimeter turbines and 8 turbines adjacent to the ESP. Syncronized flashing at 20 per minute -- one second on, two seconds off.
USCG Lighting– Marine Navigational: Two synchronized flashing amber lights on the ESP (Electrical Service Platform) and on each turbine about 35 feet above the water surface.