Restore the energy supply is one of the most widely used method of hydraulic energy. This is one of the oldest energy sources. Thousands of years ago people first as a wooden wheel turned by flowing water use were grinding grain. Hydraulic energy source is water. Hence on the hydropower plant has to be a water source.

Long-distance transmission of electricity in the technology after it has been used more and more hydraulic power.

Hydroelectric Power Plants convert water power into electricity. The amount of energy in flowing water or a drop of water flow rate is determined. In a large river flowing water carries large amounts of energy. From a point too high or water is reduced again to obtain large amounts of energy. Both ways are channels or pipes into the water, flowing toward the turbine, producing electricity for the rotation of turbine blades that provide such arms. Depends on the turbine generator to convert electric energy to mechanical energy.