Clean Power
By Burt Hamner Poor people living off the grid spend over $25 billion a year to charge their phones. New hydropower technology for harvesting...
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By Burt Hamner Poor people living off the grid spend over $25 billion a year to charge their phones. New hydropower technology for harvesting...
Originally published on Ecopreneurist. There are plenty of plug-n-play options using renewable energy to provide offgrid power, but most of them rely on solar or thermoelectric energy,...