🔥 The technology has been tested for several years in major cities around the world.
Heat from subway used to heat buildings.
In the subway, the thermal energy known as "waste heat", released by engines, brakes and human promiscuity can be reused to heat buildings thanks to heat pumps.
The residential area of Islington, in the northeast part of London, completed the installation of a system at the end of 2019 to provide heating and hot water to more than a thousand homes (1350 in total), as well as a school and two leisure centers. The heat pump system is installed at the former Chengcheng Road station on the Northern Line, an underground line that breaks all heat records and can reach 40 degrees in summer.
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