As you have now learned, your understanding of the nuclear path was outdated. My view confirms to Bill Gates’ view and everyone else who is up to date. Catch up!
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solar beams
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Single layer mono-crystalline silicon is up to around 21-22% efficiency from incident energy to bus. I've assumed 20% for all my calcs/projections, since multi-layer will be much more expensive. Declining cost is mostly due to reducing cost of ultra-pure silicon. 1/2
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Also there are techniques for making the top, ultra-pure layer much thinner, but the falling price of ultra-pure (zone refined) silicon has kept it from being pursued right now. 2/2
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Scott, solar can always get cheaper/more widely used. But power isn't all energy and RE has tremendous footprints. Seen Schellenberger? https://quillette.com/2019/02/27/why-renewables-cant-save-the-planet/ … We definitely need much faster innovation/more competition+choice. For that, we must remove liability caps+regs.
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The efficiency of solar panels is of minor importance because its raw material - sunshine is free. $/watt cost is more significant for payback analysis.
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