Geography 2143A/B : Geography 2143A (Part 6) Nov 22.docx
31 Jan 2014
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Document Summary
85% of world"s increases in energy demands will come from fossil fuels natural gas is the most expensive source of electricity: then: solar (photovoltaic), coal, solar (thermal), wind, nuclear, geothermal on the slide combined cycle refers to harnessing the wasted heat from one method of getting electricity to power another method electricity costs worldwide, costs for industry are always cheaper than for households, canada"s costs are roughly between the us and uk. More energy is produced than is eventually used there are three distinct electrical grids in the us: western interconnection, ercot (texas, eastern interconnection the canadian grid is similarly divided into two halves: eastern and western, on the slide, most arms in the north are from hydroelectric sources the limited use of hydro in the middle east and africa is due to water scarcity. Liquids: 1st, 2nd, 3rd, 4th, 5th, 1st, 2nd, 3rd, 7th, 18, 104, 59.
