Biogas Direct LLC 431 Water St. , Sauk City , Wisconsin 53583 USA About Solutions products Companies Biogas Direct LLC Products CHP - Heat and Power Units CHP - Heat and Power Units 0 Share A very smau very enicient CHP which only needs the manure from 25 cows to produce 5.5 kWh electric and 15kWh heat. This unit produces 350 kWh electric using biogas from manure from 1200 dairy cows. Most popular related searches dairy heat cow manure dairy cow manure heat cow heat Customer reviews No reviews were found for CHP - Heat and Power Units. Be the first to review! Add your review Publish your review Great! review successfully added!