More than 1,000 homes are being heated by warm air extracted from Tube tunnels in a pioneering scheme that could be replicated across the London Underground network. A new energy centre on the site of the abandoned City Road Underground station, closed in 1922, is using a large fan to suck air via a six-storey shaft from the Northern Line. The air passes over a series of pipes to heat water that is pumped to 1,350 homes, a school and two leisure centres in Islington. Transport for London has identified another 56 ventilation shafts across the Tube network where similar systems could be installed. In summer, the system can be reversed to pump cool air down the shaft to relieve sweltering commuters.
Times 5th March 2020 read more »