Islington Council has announced that it will capture wast heat from London Underground tunnels and electrical substation help warm homes and cut energy bills, in the first project of its kind in Europe.
London Underground generates large amounts of heat, which will be captured from a nearby Northern Line vent and piped into the heat network which warms local homes.
More top news
A luxury penthouse in Mayfair has just broken the record for the most expensive home ever sold in the UK
Simon Harris talks to the Labour politicians hotly tipped for the Mayoral race in 2016 - but only one will admit he is standing
ITV London's Political Correspondent Simon Harris takes a look at the Labour candidates vying for the capital's top job in 2016