In conversations about clean energy and greenhouse gases, we hear a lot about solar, wind and nuclear, and a lot less about a renewable fuel well known to clean-water operators.
That of course is biogas, a product of anaerobic digestion. It’s a fuel with excellent growth potential as part of the nation’s energy picture. Biogas-to-energy has the added benefit of destroying methane, a potent greenhouse gas that otherwise could escape to the atmosphere.
In terms of biogas utilization, the United States lags far behind Europe, which has some 10,000 operating anaerobic digesters, some of which enable communities to be essentially fossil-fuel free.
The American Biogas Council reports
