Deep Lake Water Cooling System

As a renewable energy project, it involves running cold water from Lake Ontario to air-conditioned buildings located in downtown Toronto.

[5] The DLWC involves three large HDPE pipes running 5 kilometres into Lake Ontario at a depth of 83 metres.

[6] An expansion to the system will add a fourth intake pipe that extends 3.3 kilometres into Lake Ontario to a depth of 70 metres.

The chilled water mixture is then circulated using pumps throughout fan-coil units installed in high-rise properties throughout the region served by Enwave in Downtown Toronto where it absorbs energy and repeats the cycle to provide cooling and dehumidification.

This system is advantageous since it reduces, or even completely eradicates chiller usage during summer months and shoulder seasons, reducing energy usage, as well as minimizing the number of evaporative cooling towers from operating, which are susceptible to becoming breeding grounds for Legionella pneumophila.