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Toronto is home to the world’s largest lake-powered cooling system. Here’s how it works.

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With just minutes left in Game 5 of the 2019 NBA finals, the Toronto Raptors drained a 16-foot jumper to pull ahead by six points. Hardly a soul was sitting down or silent as fans cheered the team toward Canada’s first basketball championship. But the sellout crowd also posed a challenge. The National Basketball Association requires arenas to be chilled to between 65 and 72 degrees Fahrenheit. And, left unchecked, the arena’s 20,144 attendees were likely to produce a sweltering mess that would set off alarms at league headquarters. “People bring with them a lot of body heat,” said Kyle Lamkey, director of engineering for the arena. “Cooling is probably one of the most critical parts of our building.” But unlike other sports venues, Scotiabank Arena doesn’t keep its temperatures in check using air conditioners. Toronto is home to the world’s largest deep lake water cooling (DLWC) system. Conceptually, the technology is relatively simple. Instead of relying on energy-intensive compressor

Toronto is home to the world’s largest lake-powered cooling system. Here’s how it works. Skip to main content BACK TO RESOURCES Toronto is home to the world's largest lake-powered cooling system. Here's how it works. May 13, 2022 Story by Tik Root Graphics by Daisy Chung Photos by Ian Willms Updated Nov. 5 at 11:00 a.m.Originally published Nov. 5, 2021 With just minutes left in Game 5 of the 2019 NBA finals, the Toronto Raptors drained a 16-foot jumper to pull ahead by six points. Hardly a soul was sitting down or silent as fans cheered the team toward Canada's first basketball championship. B

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