In 2004, Toronto began using cold water from 83 metres beneath Lake Ontario to cool downtown buildings; today the system serves 200 buildings across 40 million sq ft

In a bold move towards sustainability, Toronto harnesses the icy depths of Lake Ontario for its cooling systems. By drawing from eighty-three meters beneath the lake’s surface, this network services two hundred buildings and spans over forty million square feet. This innovative strategy not only slashes electricity usage compared to traditional AC methods but also revamps a natural asset into core urban infrastructure.
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