Biomethane is methane obtained from the natural decomposition of biomass by micro-organisms. Typical sources of biomethane include landfills, waste water treatment plants, and animal manure digesters. Additional sources of biomethane include high solids digesters.
Biomethane must typically be purified because it is produced at a purity of 40-60% and its use as a fuel requires purity above 95% with a particular concern about certain contaminants. Purified biomethane is practically indistinguishable from fossil natural gas found in our nation’s distribution systems.
Because it is practically indistinguishable, there is no difference in the end use of biomethane in comparison to fossil natural gas.
There is no biofuel with lower carbon intensity than biomethane according to the California Air Resources Board.
– Biomethane is fully approved for use in the US for any application approved for use with fossil natural gas.
– We estimate about 100,000 gasoline equivalent gallons of biomethane are being produced and used in transportation. There is potential for this number to be increased by 2 orders of magnitude, bringing biomethane to be available in quantities of several billion gallons per year.
–Biomethane is the cleanest burning renewable fuel available today in commercial quantities.
– Biomethane reduces the carbon intensity of transport more than any other fuel that is commercially available.
– Biomethane is the least expensive renewable fuel commercially available.
– Biomethane is stored in a compressed or liquid form at fueling facilities. This is a significant infrastructure expense. .
– Biomethane must be used in a vehicle certified by the EPA to use natural gas. .