Waste heat from London Underground begins warming capital's homes

The Bunhill 2 Energy Centre has started capturing excess heat from the London Underground to help warm over 1,000 buildings in the UK capital.
A perforated red-metal pavilion by Cullinan Studio distinguishes the Bunhill 2 Energy Centre, which occupies the site of the disused City Road tube station that once formed part of the Northern Line.
It provides heating and hot water for hundreds of houses and several public buildings in the borough of Islington, helping to reduce heat bills, carbon emiss