Steve Mellin, 6th Space Warning Squadron support officer, stands before two wind turbine power generators on Cape Cod Air Force Station, Mass., Sept. 11, 2014. The two wind turbines provide Cape Cod AFS with nearly 50 percent of their power needs and helps save the Air Force more than $600,000 annually. (U.S. Air Force photo by Airman 1st Class Krystal Ardrey)
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