The development of wind power in Maine has emerged as a significant economic opportunity in the past several years, providing one of the few growing sectors in the latter half of the last decade. The impact of this development has been estimated in regulatory filings before, but has not been examined in detail using data on actual expenditures for wind power development. This report examines the economic impacts of three major wind power projects: Mars Hill in Aroostook County, Stetson Mountain in Washington County, and Kibby Mountain in Franklin County. (Stetson and Kibby were undertaken in two phases) These projects together provide 257 megawatts of installed generating capacity