Full of beans – Coffee grounds to help power London’s buses

A new biofuel, which contains part coffee oil, is being added to the London bus fuel supply chain. Bio-bean and partner Argent Energy have now produced enough coffee oil to power one bus for a year, if mixed 20% coffee oil with mineral diesel to form a B20 fuel.

Bio-bean said the average Londoner drinks 2.3 cups of coffee a day, producing over 200,000 tonnes of waste a year. It collects waste grounds from high street chains and factories, which are dried and processed to extract coffee oil.The coffee fuel technology has been supported by Shell.