![](http://www.alamy.com/thumbs/6/2B11CDB9-A306-477E-9D6E-867837ACADE6/2JC4WB6.jpg)
Two sources of renewable energy - wind & biogas - the Milford Wind farm and Smithfield hog barns which produce biogas from hog waste.
Size: 5600px × 3731px
Photo credit: © Jon G. Fuller/VWPics / Alamy / Afripics
License: Licensed
Model Released: No
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