Re: Warning: The mining boom is fading fast
This is from the IAEA -- They base it on what would be the highest quality ores currently available. The Australian study is better, because it uses the overall ore mix that is currently being used. The IAEA study was published in 2002, and relies on a study of older reactors (It is documenting the history, as opposed to the current state!) The Australian Study is much more upfront about its assumptions than the studies you cited -- and hence is more believable. The two studies you cited just throw out numbers with none of the detailed assumptions, data and the mathematics of the conversion.
The point of the original article I posted, was that as we continue mining -- we are moving towards poorer quality ores, and that increases the total burden.
The solar cell wiki I am more comfortable with -- as lower cost ($ and Kcal) solar cells are going to be produced. If silicon based, there are no ore issues for silicon extraction - only energy ones. The energy payback period will soon go below one year. There is a likelihood of carbon based solar cells in the intermediate future also. Further silicon nanowire solar cells are on the horizon as well.
Currently, it is the cost of production ($) of solar cells that is keeping back the widespread usage. This has been dropping, but with new technologies, it is likely to become competitive with conventional electricity production.
This is from the IAEA -- They base it on what would be the highest quality ores currently available. The Australian study is better, because it uses the overall ore mix that is currently being used. The IAEA study was published in 2002, and relies on a study of older reactors (It is documenting the history, as opposed to the current state!) The Australian Study is much more upfront about its assumptions than the studies you cited -- and hence is more believable. The two studies you cited just throw out numbers with none of the detailed assumptions, data and the mathematics of the conversion.
The point of the original article I posted, was that as we continue mining -- we are moving towards poorer quality ores, and that increases the total burden.
The solar cell wiki I am more comfortable with -- as lower cost ($ and Kcal) solar cells are going to be produced. If silicon based, there are no ore issues for silicon extraction - only energy ones. The energy payback period will soon go below one year. There is a likelihood of carbon based solar cells in the intermediate future also. Further silicon nanowire solar cells are on the horizon as well.
Currently, it is the cost of production ($) of solar cells that is keeping back the widespread usage. This has been dropping, but with new technologies, it is likely to become competitive with conventional electricity production.
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