EESA01H3 Chapter : chapter notes

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31 Oct 2010
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0. 5% worldwide obtained from new renewable energy sources. Wind power grew by 50% annually since 1970. Expanding quickly because of growing concerns of diminishing fossil fuel supplies ( high prices and national security concerns) & environmental impacts of fossil fuel combustion. Advances in technology less expensive and easier. Can create new employment opportunities, sources of income, property tax. Research and development projects for renewable sources are underfunded least subsidy. 44 landfill gas-to-electricity (lfgte) systems in canada in 2003. 1 m2 on earth"s surface receives ~1kw of solar energy [17 times a light bulb] Mainly used for: heating and cooling air, heating water (aquaculture, swimming pools, home & industrial uses, drying crops (tea, coffee, timber, fruit, etc, generating electricity for off-grid & distributed energy applications, detoxifying water and air, cooking, daylighting. Passive solar energy collection: buildings/building materials are made to maximize direct absorption of sunlight in winter. Low, south-facing windows to maximize sunlight capture in the winter (in north)

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