This pretty much says it all: IMPORTANT NOTE: The primary energy source of our Biogas Refineries is a new, very clean and efficient carbon combustion achieved via submerged electric arcs. Consequently, our Magnegas Refineries have a very high efficiency. Nevertheless, due to the very low efficiency of currently available electric generators (generally less than 30%), the use of the biogas produced cannot reproduce the entire electricity used for the recycling.
You have to put more energy into it than you get back.
Ed