How hydroelectric systems work

Small scale hydroelectric systems work much the same way as wind turbines, by harnessing the power of flowing water by use of propeller-like fins that drive a small turbine which in turn generates electricity. Most household wind turbines generate direct current (DC) and require an inverter to convert the power to alternating current (AC) to make it suitable for use in the home.

The type of system recommended depends on the size of stream / river and the speed of flow and the amount of electricity generated depends on the volume and speed of water-flow and depends on how efficiently the system converts the power of the moving water into electrical power.