South Korea’s Ulsan Institute of Science and Technology has developed an eco-friendly toilet that generates electricity and heat for the entire campus from accumulating methane. Visitors receive electronic money for each visit to the energy toilet.
Cho Jae-Weon, a professor of engineering at UNIST, developed the design for the toilet, in which microorganisms turn body waste into methane. “If you think outside the box, fecal matter has a high value for energy production. I put that value into ecological terms,” the professor said.
According to the scientist’s calculations, about 50 liters of methane can be produced daily from human feces, which is converted into 0.5 kilowatts of energy.