London Mayor Sadiq Khan has made it his mission to rid London of pollution and unnecessary energy waste ever since he took office back in 2016. Well, on the back of the announcement that Oxford Street is set to be pedestrianised, it’s also just been revealed that some of London’s buses are going to be ran on a new fuel… coffee.

London Buses Now Run on Coffee

Yes, waste coffee grounds will be used to help power some of the capitals famed red double deckers from this week. The biofuel, made by blending oil from coffee waste and diesel, has been be added to the fuel supply for Transport for London’s buses.

The technology has been pioneered by Cambridge-based Bio-bean. The tech start-up says it has produced enough coffee oil from recycled ground coffee to run one bus in the capital for a whole year. It’s just the latest biofuel being used by the TfL with the aim of reducing emissions from vehicles and ultimately pollution in the city.

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According to research from Bio-bean and Shell, who’ll be providing the diesel, Londoners create around 200,000 tonnes of waste from coffee every year. Bio-bean estimates that it would take just over 2.55 million cups of coffee – blended with diesel – to run one of London’s buses for a year.

Bio-bean collects the fuel from coffee shops around the UK. But it’s not only London buses they’re fuelling, they also turn coffee grounds into Coffee Logs, a sustainable alternative to conventional fossil fuels. Each Coffee Log is made from the grounds of 25 cups of coffee and contains about 20% more energy than wood – meaning it burns hotter and for longer.

It might sound a bit out there on paper, but it’s no secret we need to find creative ways of producing sustainable energy. Bio-bean say their Coffee Logs, for example, are 100% carbon neutral, diverting waste away from landfill and reducing harmful greenhouse gas emissions. Head over to the Bio-bean Website for more details.

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