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Hydroelectricity is electricity generated by hydropower, i.e., the production of power through use of the gravitational force of falling or flowing water. It is the most widely used form of renewable energy. Once a hydroelectric complex is constructed, the project produces no direct waste.
Types of Energy. Electricity can come in many different forms. For instance, think of the electricity that is produced when someone receives a shock, or when laundry gets stuck together... this is static electricity, and is the same type of electricity that causes lightning when there is a thunderstorm. The type of energy that we use in our homes, schools, and businesses is different than static electricity. This type of electricity is called current electricity. Current electricity is a stream of electrons flowing through a conductor. The way we get the electricity in our homes is from current electricity.