Toronto Deep Lake Water Cooling
Beneath the picturesque surface of Lake Ontario lies Toronto's most precious source of renewable energy: the abundant reserves of cold, refreshing water. A new deep lake water cooling system brings refreshing air temperatures to numerous locations across Toronto, enhancing comfort and energy efficiency.
CHA managed the detailed design of the Enwave Deep Water Cooling project, drawing approximately 70,000 gallons per minute of 39°F water from Lake Ontario using three 63-inch diameter HDPE pipes extending 18,000 feet to a depth of 280 feet. After cooling the circulating chilled water of Enwave's district cooling system, the lake water is routed to the city's potable water distribution system. In addition to reducing water consumption and operating costs, the cold water from deep in the lake eliminated the taste and odor problems of Toronto's summer drinking water.
Project summary
Electricity use is reduced by 90,000 megawatt hours annually.
18,000 feet of HDPE pipe extends to a depth of 280 feet.
The system draws 70,000 gallons per minute of 39°F lake water.
Talk to an expert
Jim Fuller, PE, LEED AP*
Senior Vice President,
Power Delivery & Integration Business Line Director
Jim has over 30 years of experience with a focus in the design and management of electrical projects. He has designed electrical systems for utility, renewable generation, transportation, industrial, municipal, commercial, and institutional facilities.