Turning cow dung into electricity
Sunday, June 9, 2013 - 01:00
in Physics & Chemistry
Dairy farmers have been burned by systems that promise to turn manure into power, but a new generation of digesters could revive this segment of the renewable energy field.Dairy farmer Ron Koetsier's 1,200 cows produce roughly 90 tons of manure daily, and for the last three decades, he has tried unsuccessfully to turn the stinky dung into energy to power his 450-acre farm in Visalia.