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9 Cards in this Set
- Front
- Back
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Conventional energy sources |
well-established source of energy such as oil, natural gas, coal, hydro- and nuclear-electricity |
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Alternative energy sources |
non-conventional energy source such as solar, wind, and biomass energy |
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Electric types |
Hydro Thermal Nuclear |
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Hydro |
hydroelectric generating stations can be built anywhere there are rivers with significant changes in elevation and large, reliable flows of water. The force of the water moving from a higher to lower elevation drives the generator. Pros, plants are cheap to operate since there is no fuel to buy, Hydroelectric power uses a renewable source. Cons, Plants are very costly to build an practically all large sites near population centers have been developed |
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Thermal |
Thermal generating systems uses steam rather than water. turns the turbines, and this action causes the generator to turn. The steam can be produced by burning fuel like, coal, oil, natural gas, wood or garbage. Pros, plants are less expensive to build than hydroelectric or nuclear-electric plants. Cons, Coal and, to a lesser extent, oil produce the gases that are responsible for acid precipitation |
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Nuclear |
Nuclear-electric generating stations similar to Thermal electric generating system. The heat comes from the break down (fission) of radioactive uranium atoms. It boils water that produces steam that turns the turbines. Pros, since plants can be built where the energy is needed, transmission costs are low. Cons, construction costs are very high |
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Ecological footprint |
(EG) measure of total human impact on an ecosystem |
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Sustainability |
approach to development that meets the needs of the present without negatively affecting the ability of future generations to meet their needs |
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What does it mean for the future when Canada uses so much energy? |
Future increases in demand will have to be met by thermal-electricity or nuclear-electric plants, importing energy from other provinces, or by developing alternative energy sources such as wind power. The best solution would be to improve energy conservation |
