How does a micro hydro-power system work?
Hydro-power systems convert potential energy stored in water held at height to kinetic energy, or the energy used in movement, to turn a turbine to produce electricity. Energy available in a body of water depends on the water’s flow rate and the height, or head that the water falls. These are divided into low head, medium head and high head where the height drop is greatest. The scheme’s actual output will depend on how efficiently it converts the power of the water into electrical power. Maximum efficiencies of over 90% are possible but for small systems 60 – 80% is more realistic.
