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