An advantage of water-powered generators is that water is a renewable source of energy, as stated by the United States Geological Survey. After the water is used to power the generator, the water cycle returns the water to the environment, never reducing the final supply of water. Water energy is a clean form of energy that adds no pollutants to the environment and produces only a minute amount of greenhouse gases.
Another benefit of water-powered generators is that they allow users to control the energy source, as reported by the Office of Energy Efficiency and Renewable Energy. Any location with water can be used to power the generator, and users do not have to rely on outside sources.