[0] Seed, Hurds [1] Fuel [2] Hemp stalks have been traditionally burnt in homes for cooking and heating. Hemp seed oil is used to make biofuel, as is the hurd. [3] Hemp can produce electricity from sulphur-free coal for industry, heating for homes, and ethanol/methanol fuel for vehicles. When grown as an energy crop it would reduce global warming by lowering carbon levels in the atmosphere. [4] 
Hemp can produce 4 times as much ethanol per acre as corn, using the same equipment, making it more economical. Hemp based fuels allow countries or local regions to be more self reliant.