Coffee culture has taken off in a big way in London, and aside from the epidemic of chain coffee shops with which you’ll be familiar, there are a host of independent coffee shops all serving eager customers their cappuccinos, lattes and espressos. But, have you ever wondered what happens to the 200,000 plus tonnes of coffee grounds produced in London each week? No … neither had we.

Two former architecture students from The Bartlett (UCL), Arthur Kay and Benjamin Harriman had obviously been pondering the question, as in 2012, they founded a company called Bio Bean, a London based green energy company that quite remarkably, creates fuel from waste coffee grounds discarded by coffee shops, roasters and instant coffee producers. The end products are biomass pellets and biodiesel for heating and transport.

Rather than seeing the waste coffee grounds go to landfill and contribute to the overall release of greenhouse gasses, Kay and Harriman decided they would help to establish responsible waste collection and disposal whilst producing clean and cheap energy production. It seems they have done exactly that and you can find out more about them, their team and what they do from their website.