Shell collaborates on biofuel to help power London buses

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Bio-Bean says it's built a plant that can recycle 55,000 tons of coffee waste a year, and is partnering with two of London's biggest coffee chains, Costa Coffee and Caffe Nero, to collect their used grounds.

The average Londoner consumes an impressive 2.3 cups of coffee every single day.

In an attempt to explore fossil fuel alternatives, a partnership between Shell, Argent Energy, biofuel company Bio-Bean, and Transport for London, the city's iconic double-decker buses will soon run on "B20 Biofuel", a proprietary combination of oil from coffee ground extracts and diesel. According to the BBC waste byproducts from cooking oil and tallow from meat processing is already fueling some of the city's bus fleet.

To create the fuel, coffee grounds are dried and processed before coffee oil is extracted.

The project, which is in collaboration with Shell and Argent Energy, makes the biofuel through blending fats and oils, producing 20% biocomponent, which is then mixed with mineral diesel.

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We have started in the United Kingdom, but imagine the potential of a country like South Africa, that drinks more than three-billion cups of coffee a year.

Coffee grounds are now being used to produce biofuel for London buses, it has been confirmed.

This also isn't the first time TfL has turned to biofuels to power its public transportation. It's simply a matter of changing what you put into the tank, making it much cheaper to run slightly cleaner and more sustainable travel in the capital. Founder Arthur Kay said it was a "great example of what can be done when we start to reimagine waste as an untapped resource".

Bio-bean has been using coffee to deliver energy for a short while now, giving households the ability to burn coffee instead of wood for their fires.

In the press release, nobody actually answers the real burning question I have around using coffee for fuel.