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Micro hydro
If you happen to have a stream on or near your property a microhydro system is a possible option. In such systems, water flowing downhill is diverted through a penstock pipe to a small turbine. After passing over the turbine the water is discharged back into the stream. The amount of electricity you can generate depends on the volume of water flowing in the penstock, measured in litres per second, and the difference in vertical height between the intake pipe and the turbine (the head). A small stream with a flow rate of 15 litres per second and a head of 20 m would be able to produce about 1.5kW of power or 36 kWh of electricity per day (the average home uses about 25-30 kWh per day.
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