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Hydroelectricity Hydroelectricity is the term referring to electricity generated by hydropower; How does it work ? Hydroelectric energy is produced by the force of falling water. The capacity to produce this energy is dependent on both the available flow and the height from which it falls. Building up behind a high dam, water accumulates potential energy. This is transformed into mechanical energy when the water rushes down the sluice and strikes the rotary blades of turbine. The turbine's rotation spins electromagnets which generate current in stationary coils of wire. Finally, the current is put through a transformer where the voltage is increased for long distance transmission over power lines. Larges Facilities 1. Three Gorges Dam Yangtze River, China 2. Itaipu Dam Paraná River, Brazil/Paraguay 3. Xiluodu Jinsha River, China 4. Guri Caroní River, Venezuela 5. Tucuruí Tocantins River, Brazil Disadvantages to hydroelectric power : Drought Impact on Local Environment and Land Use Preservation Concerns Fish Population Quality and Flow of Water Ecosystems of Rivers and Streams Advantages Renewable Energy Clean Energy Source Domestic Energy Source Generally Available As Needed Provides Recreational Opportunities Water Supply and Flood Control Hydroelectricity Hydroelectricity is the term referring to electricity generated by hydropower; Generating methods of hydroelectricity How does it work ? Hydroelectric energy is produced by the force of falling water. The capacity to produce this energy is dependent on both the available flow and the height from which it falls. Building up behind a high dam, water accumulates potential energy. This is transformed into mechanical energy when the water rushes down the sluice and strikes the rotary blades of turbine. The turbine's rotation spins electromagnets which generate current in stationary coils of wire. Finally, the current is put through a transformer where the voltage is increased for long distance transmission over power lines. Pumped storage Run of the river Larges Facilities 1. Three Gorges Dam YangtzeRiver, China 2. Itaipu DamParaná River, Brazil/Paraguay 3. XiluoduJinsha River, China 4. Guri Caroní River, Venezuela 5. Tucuruí Tocantins River, Brazil