The U.S. government has identified 4,100 contaminated industrial sites, covering more than 5 million acres, suitable for building wind, solar, and geothermal power installations. With concern about 
renewable energy projects being built on pristine lands, the construction of wind and solar arrays on idle industrial “brownfields” could be an ideal solution, according to federal officials. The Daily Climate reports that the U.S. Environmental Protection Agency and the National Renewable Energy Lab will begin conducting detailed studies of some sites this month and will hold workshops with state and local leaders, renewable energy developers, and conservation groups to discuss constructing alternative energy installations on brownfields. First Wind has already built a wind power array on the site of a former steel mill near Buffalo, N.Y., and officials also are looking at other locations — from abandoned industrial facilities in Michigan to defunct mining sites in the West — as sites for solar and wind power arrays.
First Wind
First Wind site in Lackawanna, N.Y.