The garden waste-to-energy process directly combusts garden waste in the power generation device to generate electricity, which is then supplied to the user through the power transmission & transformation system and the power distribution system. With zero or close to zero carbon dioxide emission in the process, green power has lower impact on the environment compared with electricity produced by other means (e.g. thermal power generation). Green power is green electricity generated by renewable energy sources, including solar energy, wind energy, nuclear energy, hydro energy and biomass.