- Enwave
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Enwave 
Type Private Industry District energy Predecessor Toronto District Heating Corporation Headquarters Toronto, Ontario, Canada Area served Downtown Toronto Owner(s) Toronto and OMERS Website enwave.com Enwave is a private corporation jointly owned by the City of Toronto and the Ontario Municipal Employees Retirement System and is one of the largest district energy systems in North America. Enwave was formed after the restructuring of the Toronto District Heating Corporation.
Deep Lake Water Cooling System
Enwave's Deep Lake Water Cooling system uses cold water from Lake Ontario to cool buildings in downtown Toronto. Some customers include the Toronto-Dominion Centre, Royal Bank Plaza, RBC Centre, Metro Toronto Convention Centre, Air Canada Centre and 151 Front Street, the most advanced data centre in Canada. The system has enough power to air condition 100 office buildings or 32 million square feet (3 million m²) of building space. It is the largest renewable lake source cooling system of its kind in North America.
The cooling system is a clean, renewable, and reliable energy source. Compared to traditional air-conditioning, Deep Lake Water Cooling reduces electricity use by 75%, and will eliminate 40,000 tonnes of carbon dioxide, the equivalent of taking 8,000 cars off the streets.
Enwave draws icy-cold water (4°C/39°F) from a depth of 83 metres (272 ft) below the surface of Lake Ontario. Through a heat transfer process at Toronto's John Street Pumping Station, heat from the air conditioning of major buildings in Toronto's downtown core is not returned directly to the lake, once it has been run through the heat exchange system. The Enwave system only uses water that is destined to meet the city's domestic water needs. Therefore, the Enwave system does not pollute the lake with a plume of waste heat.
This system was officially launched on August 17, 2004 at Steam Whistle Brewing, one of Enwave's customers. In support of Deep Lake Water Cooling (DLWC), the launch was attended by actor and renewable energy activist Alec Baldwin, Ontario Minister of Energy Dwight Duncan, Canadian Minister of Human Resources and Skills Development Joe Volpe, and Toronto Deputy Mayor Sandra Bussin, among other business leaders and government officials. The launch was delayed as a publicity stunt by approximately one month to coincide with the anniversary of the 2003 blackout.[citation needed]
The Canadian Urban Institute (www.canurb.org), a Toronto-based non-profit organization engaged in applied urban research, spearheaded the original pre-feasibility study for Toronto's deep lake water cooling, as well as efforts to popularize the idea and move it into implementation.
See also
External links
Categories:- Power companies of Canada
- Cooling technology
- OMERS
- Municipal government of Toronto
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