New more efficent Biogas compatible engine comes onto the market.
The engine is part of GE's ecomagination campaign and turns
natural gas, landfill gas, coal gas, sewage gas, and biogas into
electricity.

http://online.wsj.com/public/article/SB116260858542413472-q2j0jDNkkqEnAGwrZPFbvyd2n5o_20061204.html?mod=tff_main_tff_top

James Gabriel Duncan

BioEnergy and Sustainable Technology Society
http://grove.ufl.edu/~bests/