Tiny light, big dream: Harvesting power from soil in Japan - Japan Today

Glinting in the night, halfway up a hill in Japan, the greenhouse-like "Ku-An" test lab is lit by electricity harnessed from 1,500 wooden boxes of soil and compost. Designer Satoshi Nakagawa has long battled skeptics, but believes that the technology powering the 800 LEDs has a role to play in…