Renewable energy sources naturally and continually “renew” themselves.  These renewable energy sources are: Bioenergy: From organic (plant, animal) materials; also includes municipal solid waste Geothermal: From the heat of the earth Hydroelectric: From flowing or falling water (streams, dams) Ocean: From waves, tides, or currents (marine hydrokinetic, “MHK”); or temperature differences in the ocean (ocean … Continue reading Overview