Engineers install the first of three 275-kilowatt wind turbines to be erected on Fort Buchanan, Puerto Rico, as part of a 10-project energy and water reduction effort that includes wind power generation, solar photovoltaic systems, and water conservation measures. Learn more about this effort: http://1.usa.gov/181gufc

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Photo by: Jacksonville District |  VIRIN: 130415-A-CE999-009.JPG