London's Iconic Red Buses to Run on Biofuel Made From Old Coffee
London’s iconic red double-decker buses will soon run on a biofuel partially made from old coffee grounds. The fuel will be supplied by a demonstration project set up by Bio-bean Ltd., a London-based company that joined with Royal Dutch Shell Plc on the initiative. It will produce 6,000 liters (1,583 gallons) a year of the fuel. “It’s got a high oil content, 20 percent oil by weight in the waste coffee grounds, so it’s a really great thing to make biodiesel out of,” said Arthur Kay, founder of Bio-bean, in a phone interview.