Construction of 2,000 megawatts of wind power off Massachusetts’ shores could cut the current price in half, according to a new study released by the University of Delaware’s Special Initiative on Offshore Wind.

Cape Wind announced on Aug. 23 that it has signed a purchase and sale agreement with the East Marine marina in Massachusetts' Falmouth Harbor to serve as the operations and maintenance facility for the 130-turbine offshore wind farm the alternative-energy purveyor plans to build on Nantucket Sound.