CBC
Summary
Underground subway stations are hot and getting hotter, drawing complaints from transit riders around the world. That includes those in Canadian cities such as Montreal, where a reporter recently measured the temperature as 38 C.
Now a Canadian company is testing an energy-efficient cooling solution in New York City's subway system.
Toronto-based Cascara Energy and New York City's Metropolitan Transportation Authority are installing the radiant cooling system in ceiling arches in East Broadway station. The first units are expected to be running at the end of August and the pilot will continue until the end of 2027.
The London Underground is already collecting waste heat from the Northern line tunnels of its network year-round in the British capital for its Bunhill 2 Energy Centre, located in the former City Road station. That, in turn, is one of the heat sources for a district heating network connected to thousands of homes, a school and two community centres. The system's fan can be reversed in the summer to pump cool air into the tunnels.
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