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How to make "pico-hydroelectric" power - doesn't require a lot of water and generates enough power for at least one household. http://greenetechenergy.com/Hydro.html:
This Silent Rooftop Turbine Could Generate Half of Your Home's Energy http://mic.cm/1klMZwZ
Microhydro Electricity Basics: Pressurized, flowing water is a very dense resource, and hydro-electric systems convert a very large percentage of the available energy into electricity because the resource is captive in a pipe or flume.
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Make your own electricity
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