all topics 
a wintry solar bike ride under 15 watts
in this wintertime video my custom electric bike operates on just 3 volts or sub-15 watts of solar power, the lightweight hand made solar panel is rated for approximately 24 watts in optimal conditions. monocrystalline silicon solar cells are used but they offer just 16-17% in efficiency and are extremely brittle, newer flexible pv cell... keep reading
