Is hydroelectricity good for the Earth?
Hydropower is a renewable source of energy. … Hydropower is fueled by water, making it a clean source of energy. Hydroelectric power won’t pollute the air like power plants that burn fossil fuels, such as coal or natural gas.
How effective is hydroelectric power?
Hydroelectric powerplants are the most efficient means of producing electric energy. The efficiency of today’s hydroelectric plant is about 90 percent.