Volume 3 - Program & Project Ideas (PDF - 4.5 - Natural Life Network

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Natural Resources Canada – Community Energy Systems capacity to ensure reliable service in the event any major component fails. The district heating company will be operated as a for-profit commercial enterprise. Piping in Hamilton’s community energy system For additional information, contact Robert Desnoyers, President Hamilton Community Energy, tel.: (905) 317-4722, web: http://www.hamiltonce.com - Case Study: Watson Lake Watson Lake, the second largest community in the Yukon, derives its electrical energy from a diesel electric power station located near the local school, the swimming pool and the newly constructed recreation center. Together the buildings could consume approximately 1.5MW of heating. Through inspection, it was determined that the six engines that comprised the Watson Lake Power Plant could provide both the town’s electrical energy and the thermal needs during all four seasons. An agreement between the Town of Watson Lake, Yukon Electric and the Territorial Government of the Yukon allowed a district energy system to be developed to provide heating to six buildings, and thereby displace both fuel oil and greenhouse emissions. For additional information, contact Bob McCullough, Watson Lake District Energy, tel.: (867) 536-7702. - Case study: Fort McPherson, NWT The Village of Fort McPherson is located approximately 100 kilometres north of the Arctic Circle and has a population of about 700 people. Residual heat is distributed from the water jacket coolant of the Northwest Territories Power Corporation diesel generators as a source for supply of supplemental heat to customer buildings. The system services five commercial customers including a new school, a water treatment plant, a swimming pool, a manufacturing shop and the Hamlet council office. • The district heating system has decreased the consumption of imported fossil fuel. • It has increased the efficiency of the diesel power plant. • Estimates show that CO2 emissions are reduced annually by 645 tonnes, and SOx emissions are reduced annually by 1 tonne. Draft 4/11/2005 112
Natural Resources Canada – Community Energy Systems (left) Fort McPherson Kids playing on distribution piping. Source: NRCan. Undated. Fort McPherson, Northwest Territories District Heating System. NRCan Community Energy Systems case study. http://www.nrcan.gc.ca/es/etb/cetc/cetc01/htmldocs/factsheet_fort_mcpherson_northwest_territor ies_district_heating_system_e.html For additional information, contact Chris Snook, Technology Manager, CANMET Energy Technology Centre, Natural Resources Canada, 1 Haanel Drive, Nepean, Ontario, Canada, K1A 1M1. Tel.: (613) 992-1832, fax: (613) 947-0291. E-mail: csnook@nrcan.gc.ca. Web: www.cetcctec.gc.ca. A.3 District cooling An extension to the district heating involves the supply of chilled water, again through a system of dedicated piping. Chilled water may be produced either by high efficiency electrical chillers (absorption chillers which use reject steam) or by cold water from a nearby lake. - Case study: Toronto, ON Near-freezing water will be drawn from the bottom of Lake Ontario and used to chill buildings in Toronto. After being pumped to shore, the 4 o C water will pass through a heat exchanger, a device that absorbs the chill from the water. The lake water then goes on to a treatment plant at a more comfortable 13 degrees to become the source of the city's tap water. The District Cooling System will be operational in spring 2004, and is being developed by Enwave District Energy, jointly owned by the city and the Ontario Municipal Employees Retirement System. • It could save as much as 35 megawatts of electricity each day, about 75 per cent of the energy used to air-condition office towers in the downtown core. Source: Wallace Imman. August 20, 2003. Globe and Mail. For more information, contact Dennis Fotinos, Chief Executive Officer, Enwave District Energy Ltd Tel: (416) 338 8912. Draft 4/11/2005 113
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