Entrepreneuring In The AD Industry
Four quasar digesters upgrade biogas to “qng” compressed natural gas, which retails for an average of $2.25/gasoline gallon equivalent (fueling station at left). About 30 quasar vehicles, including some tanker trucks, are equipped with CNG engines (see arrow above).

What seemed like a “slam dunk” in 2006 — bringing the European model of digester success to the U.S. and rapidly building a company — turned out to be a longer haul, but one that has been rewarding for quasar energy group.
Nora Goldstein
BioCycle September 2013, Vol. 54, No. 9, p. 44

Anaerobic Digest
Fremont (Michigan) Community Digester project

BioCycle July 2012, Vol. 53, No. 7, p. 14