Anaerobic Digester

Thinking about "renewable power" often bring hydroelectric, wind, and solar to mind. The informed will recognize geothermal and biomass as major renewables. Biogas, the non-fossil natural gas, is not well known because few facilities capture it.
Aug 4, 2014   EPA Blog
Yes, one is with and the other without oxygen, and both divert waste from the landfill—but in terms of the end products, what is the advantage of anaerobic digestion? Simply put, does society face a shortage of compost or renewable energy?
Mar 14, 2014   NPR Morning Edition
A first of its kind waste-to-energy plant in Los Angeles produces enough energy to power 2,000 homes per year by processing 150 tons of spoiled supermarket food per day. Could this model help other grocers reduce their environmental footprint?
May 17, 2013   Los Angeles Times