Multi-unit hydroelectric generator based on contact electrification and its service behavior

A multi-unit hydroelectric generator (HEG) for harvesting water-related energy based on contact electrification. The rational structure design can effectively enhance the efficiency of the multi-unit HEG comparing with individual HEG and provide the advantage for overcoming the short-circuit problem for future application. The household faucet can be a power source to supply clean energy by integrating with the multi-unit HEG.