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The Sol-Char Toilet is a solar-powered toilet that turns waste into power and, surprisingly, is 100% sanitary.

Read: Solar...toilet?! Zap waste into fuel

The Sol-Char Toilet was a product of the Reinvent the Toilet initiative, launched by the Bill and Melinda Gates Foundation. The goal was to "develop waterless, hygienic toilets that do not require a sewer connection or electricity and cost less than five cents per user per day."

 

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