Where does all the leftover food go when the grocery store closes at the end of the day? Maybe it's repurposed somehow or thrown out, but what if it could help a supermarket become energy independent? A Sainsbury's supermarket in the United Kingdom will soon power itself with leftover food waste and disconnect from the National Grid, Huffington Post reports.
Sainsbury's is partnering with Biffa, one of the U.K.'s largest waste management companies, to make this possible. Sainsbury's trucks its food waste from all over the U.K. to Biffa's plant in Staffordshire. Biffa then converts it into biogas, and this biogas is then burned to meet the energy needs of a location in the town of Cannock.