Volume 3 - Program & Project Ideas (PDF - 4.5 - Natural Life Network
Volume 3 - Program & Project Ideas (PDF - 4.5 - Natural Life Network
Volume 3 - Program & Project Ideas (PDF - 4.5 - Natural Life Network
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<strong>Natural</strong> Resources Canada – Community Energy Systems<br />
A.9.1 Solar heating<br />
(See healthy housing and passive solar design guidelines)<br />
Solar heating is using the sun's energy to heat our homes and water. There are many<br />
solar heated houses in Canada. These homes often use passive solar designs that operate<br />
without pumps, fans, or other mechanical equipment to store and distribute the sun's<br />
energy. In contrast, active solar designs need additional mechanical components.<br />
- Case study: Okotoks, AB<br />
A subdivision development is being planned in the Town of Okotoks, where each of the<br />
74 houses will have solar collectors on the garages and bore-hole storage (ground<br />
storage) of heat capabilities, allowing heat stored during summer to be used in the heating<br />
months via a district energy system. The houses will be built to R-2000 standards.<br />
Garages are accessed through back lanes.<br />
• The project will save 1,300 Megawatt hours per year and will reduce<br />
greenhouse gas emissions from 370 tonnes per year per year.<br />
For additional information, contact Doug McClenahan, 580 Booth 13 th floor Ottawa, Ontario,<br />
K1A 0E6 Tel.: (613) 996 6078, E-mail: dmcclena@nrcan.gc.ca web<br />
http://www.town.okotoks.ab.ca/<br />
A.9.2 Solar water heating<br />
The sun also can heat water for bathing and laundry. Most solar water-heating systems<br />
have two main parts: the solar collector and the storage tank. The collector heats the<br />
water; then, it flows to the storage tank. The storage tank can be just a modified water<br />
heater, but ideally it is a larger, well-insulated tank. The water stays in the storage tank<br />
until it is needed for something, such as a shower or to run the dishwasher.<br />
- Case study: Lillooet, BC<br />
Solar energy is used to heat Lillooet’s municipal swimming pool.<br />
• Solar energy is greenhouse gas emission free.<br />
• Payback times will vary, but will generally lie between five and ten years.<br />
Source: City of Lillooet. Undated. Lillooet Solar Municipal Pool. Community Energy<br />
Association Committee case study http://www.energyaware.bc.ca/tk_c_lillooet1.htm<br />
Draft 4/11/2005 126
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