A new scheme has been documented using heat from London Underground tunnels to keep homes in Islington warm.
According to BBC News, warm air from a disused Northern Line station will support a heat network supplying up to 1,000 homes and businesses by the end of this year.
The scheme is a joint project between Islington Council, TfL and engineering firm Ramboll.
Ramboll has been commissioned to deliver a district-wide heating network to provide cheaper and greener heat to 1,350 homes plus community buildings in north London.
It described the project as a European first of its kind. The Greater London Authority (GLA) estimates there is enough heat wasted in London to meet 38% of the city’s heating demand. With the expansion of district heating networks this could rise to 63% of demand by 2050.