Advantages and disadvantages of different types of fuel
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Source
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Advantages
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Disadvantages
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Coal
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Inexpensive Easy to recover (in U.S. and Russia) |
Requires expensive air pollution controls (e.g. mercury, sulfur dioxide) Significant contributor to acid rain and global warming Requires extensive transportation system |
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Nuclear
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Fuel is inexpensive Energy generation is the most concentrated source Waste is more compact than any source Extensive scientific basis for the cycle Easy to transport as new fuel No greenhouse or acid rain effects |
Requires larger capital cost because of emergency, containment, radioactive waste and storage systems Requires resolution of the long-term high level waste storage issue in most countries Potential nuclear proliferation issue |
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Hydroelectric
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Very inexpensive once dam is built Government has invested heavily in building dams, particularly in the Western U.S.
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Very limited source since depends on water elevation Many dams available are currently exist (not much of a future source[depends on country]) Dam collapse usually leads to loss of life Dams have affected fish (e.g. salmon runs) Environmental damage for areas flooded (backed up) and downstream |
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Gas / Oil
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Good distribution system for current use levels Easy to obtain Better as space heating energy source |
Very limited availability as shown by shortages during winters several years ago Could be major contributor to global warming Expensive for energy generation Large price swings with supply and demand |
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Wind
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Wind is free if available Good source for periodic water pumping demands of farms as used earlier in 1900's |
Need 3x the amount of installed generation to meet demand Limited to few areas of U.S. Equipment is expensive to maintain Need expensive energy storage (e.g. batteries) Highly climate dependent - wind can damage during windstorms or not turn during still summer days. Can affect endangered birds. |
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Solar
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Sunlight is free when available
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Limited to southern areas of U.S. and other sunny areas throughout the world (demanded the most when least available, e.g. solar heating) Does require special materials for mirrors/panels that can affect environment Current technology requires large amounts of land for small amounts of energy generation |
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Biomass
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Industry in its infancy Could create jobs because smaller plants would be used |
Inefficient if small plants are used Could be significant contributor to global warming because fuel has low heat content |
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Refuse Based Fuel
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Fuel can have low cost Could create jobs because smaller plants would be used Low sulfur dioxide emissions |
Inefficient if small plants are used Could be significant contributor to global warming because fuel has low heat content May contain metals as cadmium and lead Contain dioxins and furans in air and ash releases |
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Fusion
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Hydrogen and tritium could be used as fuel source Higher energy output per unit mass than fission Low radiation levels associated with process than fission-based reactors |
Breakeven point has not been reached after ~40 years of
expensive research and commercially available plants not expected for
at least 35 years.
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