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 technology is close to 11% more efficient. Two summers ago I initially performed a three-volt solar powered ride and was successful, I never got to video document that special test and have diligently been fighting set backs since then to make this video happen. Out from my tool chest what I have now shown is basically a reflector that has extremely high-diffuse reflectance and has greater than 97% reflectance across the visible spectrum. With amazing advances announced in photovoltaics in labs during the past year alone, I believe we are on the cusp of a new age of solar transportation.

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