Workers inspect newly installed blades of a 3MW Alstom wind turbine by repelling down the blades at the National Wind Technology Center August 9, 2013 in Boulder, CO.
Workers inspect newly installed blades of a 3MW Alstom wind turbine by repelling down the blades at the National Wind Technology Center August 9, 2013 in Boulder, CO.
Size: 5150px × 3426px
Location: Boulder, Colorado
Photo credit: © DOE Photo / Alamy / Afripics
License: Licensed
Model Released: No
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