Water Turbines

High Head	Medium Head	Low Head

Water Turbines If you are lucky enough to have a water course across your property, such as a stream, river, or if you are lucky enough to own an old water mill, water turbines are an ideal solution for providing reliable long-term renewable energy. Most sites vary considerably in flow between winter and summer, reflecting the differences in rainfall. It is important to make sure that the flow is sufficient to run the turbine, and if you wish extract maximum power from the water turbine site, it is often desirable to install two water turbines, switching in the second machine, when the water flow allows. Alternatively, a twin nozzle water turbine may be used, which incorporates a valve to isolate the second nozzle when insufficient flow is available to run both nozzles. High Head Water Turbines are 10 metres head of water and over Medium Head Water Turbines are 3 - 15 metres head of water Low Head Water Turbines are 1.8 - 3 metres head of water