The word biogas and biofuel reminds me of the movie “Back to the Future” where two of the main characters are Christopher Lloyd as Dr. Emmett Brown and Michael J. Fox as Marty McFly. At the end of the movie, Dr. Brown visited McFly with his biogas powered time-machine car. The slightly mad scientist traveled from the future and upon arrival to the time of McFly, he scavenges some organic garbage from the trashcan and loads it to his biogas generator that looks more as house blender than a power generator. It’s a great sci-fi movie in 1985, but this science fiction will be into large scale implementation.