Alternative Fuels Tax Credit: What It Is and How It Works A $0.50 per gallon credit is available for natural gas, liquefied hydrogen, propane, P-Series fuel, liquid fuel derived from coal through the Fischer-Tropsch process, and compressed or liquefied ...
Top Alternative Fuels as a source of the hydrogen needed to power fuel-cell vehicles. P-Series fuels are a blend of ethanol, natural gas liquids and methyltetrahydrofuran (MeTHF), a co-solvent derived from biomass.