Vermont Gov. Peter Shumlin signs a bill into law on the back of dairy farmer Seth Gardner, Tuesday April 1, 2014, in East Montpelier, Vt. The new law expands Vermont's "net metering" program, making ... more 
Vermont Gov. Peter Shumlin signs a bill into law on the back of dairy farmer Seth Gardner, Tuesday April 1, 2014, in East Montpelier, Vt. The new law expands Vermont's "net metering" program, making it easier for small electricity producers to sell their power back to the power grid. Gardiner said that during most months his 100 kilowatt solar project, at rear, produces enough power for his farm. (AP Photo/Wilson Ring) less 
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Associated Press | Photo By Wilson Ring
Tue, Apr 1, 2014 2:24 PM EDT