A Way To Harvest Hydroelectric Energy From Toilet Flushes

• The average American flushes 24 gallons of water down the toilet daily
• Now some of the energy used in a flush could be put to an additional use.
• A team of researchers in South Korea have created a transducer that translates water motion—from toilets, raindrops, or other water-based uses—into electricity.
• The technical side is wonky, but essentially, by using the motion from a tiny droplet of water—30 micro liters—the team was able to power a small green LED.