Waste coffee grounds will be used to help power some of London's buses from November 20. 2017, according to the UK´s transport authorities.
Transport for London (TfL) has increasingly turned to using biofuels to reduce transport emissions.
A biofuel created by blending oil extracted from coffee waste with diesel is to be added to the public transport fuel supply.
London-based technology firm bio-bean Ltd has said it has produced enough coffee oil to power 1 bus for a year.
Londoners create 200,000 tonnes of coffee waste a year, according to bio-bean.
The company takes the used grounds from coffee shops and instant coffee factories, and extracts oil from it in its factory which is then processed into a blended B20 biofuel.
Arthur Kay, bio-bean’s founder, said: «Our Coffee Logs have already become the fuel of choice for households looking for sustainable way to heat their homes – and now, with the support of Shell, bio-bean and Argent Energy have created thousands of litres of coffee-derived B20 biodiesel which will help power London buses for the 1st time. It’s a great example of what can be done when we start to reimagine waste as an untapped resource.»