![](http://www.alamy.com/thumbs/6/D7AEF650-88D2-4833-AB20-E31918C51C7C/2H8K2N3.jpg)
energy effiency
Size: 8000px × 4000px
Location: united states
Photo credit: © ayhan turan / Alamy / Afripics
License: Licensed
Model Released: No
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