I need to know how much longer nuclear energy will last. I also need to know how much available of nuclear energy is left. Can you also name some disadvantages and advantages of nuclear energy? Please? Thanks so much!
(may be broke/outdated!)
I need to know how much longer nuclear energy will last. I also need to know how much available of nuclear energy is left. Can you also name some disadvantages and advantages of nuclear energy? Please? Thanks so much!
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4 Responses
alot only a moment
Nuclear energy is what drives the stars themselves, so in the greatest sense, nuclear energy will last until the last star burns out.
But I suspect you were asking about earthbound technology.
The global supply of uranium is limited, and depends on both the rate of use and the portion of natural deposits that is considered recoverable. By one estimate, only about 85 years. (see link)
But one of the options is to construct breeder (fast) reactors which use uranium more efficiently, and can also be fueled with thorium, which is more abundant than uranium. Even more important, they produce more fuel than they consume in the form of new radioactive elements.
Thus the available uranium can be stretched to 2500 years or more.
There is a hugh amount compared to the amount of oil. I don’t have the numbers here, but you can look it up.
Fusion power even more is available, as a small percentage of the ocean water is deuterium and Tritium, which is what is used.
Advantages: non-polluting, low cost once plant is built
disadvantages, expensive plant, no way to dispose of radioactive leftovers.
the principle fission ingredient in Canadian reactors is u238 with a half life of 4.5 billion (yes b as in billion) years. American reactors use enriched u235 with half life of only 250,000 years. there is plenty of uranium in the ground, so the source of fuel will not run low anytime soon. the main problem with reactors is the fuel gets contaminated with fission absorbing by-products so that re-cycling of rods would need to be done except uranium is so plentiful it is not a current practice.