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http://en.wikipedia.org/wiki/Pico_hydro
http://www.eee.nottingham.ac.uk/picohydro/documents.html#casestudies
http://www.eee.nottingham.ac.uk/picohydro/docs/NepalCaseStudy_tech.pdf
http://www.appropedia.org/Picohydro_generator
http://www.smartplanet.com/blog/bulletin/little-turbine-filters-rainwater-and-makes-electricity/
ALTERNATOR SETUP