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Dear Bernardus,

There are many factors to consider in the design of a hydro power system. The key things to measure first are the flow rate of water you have and the ‘head’ or vertical fall that can be used. These determine both the type of generator you can use and the amount of power that can be generated. A quick calculation of power can be made by multiplying the flow rate in ltres/sec by the head in metres by 6. This will give you a rough indication of potential power in Watts.

There is a wealth of knowledge and handbooks out there. Some of the best resource is at the Centre for Alternative Technology in Wales - www.cat.org.uk/hydro

Kind Regards

John Jacobs IEng MIET