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Their words
But even if that trend continues for the next 50 years, we would still see top densities of about 3,500 Wh/L, no more than a third that of kerosene. The wait for superbatteries ready to power intercontinental flight may not be over by even 2070.
Vaclav Smil
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29 November 2022
27 October 2022
From one piece Why Is Hydroelectricity So Green, and Yet Unfashionable? (IEEE Spectrum, Numbers Don’t Lie) 3 beliefs, in the piece's order there
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korrents.com
Dams did not deserve their reversal of fortune; there is no need to build megastructuresTheir words
I never understood why dams have suffered such a reversal of fortune. There is no need to build megastructures, with their inevitable undesirable effects.
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korrents.com
Treating wind and solar as purer green power than hydro is strange, given the embodied energy wind projects requireTheir words
This ennoblement is strange, given that wind projects require enormous quantities of embodied energy in the form of steel for towers, plastics for blades, and concrete for foundations.
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Their words
And hydro still matters more than any other form of renewable generation.
29 September 2022
From one piece Taming the Climate Is Far Harder Than Getting People to the Moon (IEEE Spectrum, Numbers Don’t Lie) 4 beliefs, in the piece's order there
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Their words
Of course, nobody can provide a reliable account of the eventual cost of global energy transition because we do not know the ultimate composition of the new primary energy supply.
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korrents.com
Fully displacing the fossil-fuel system will directly affect every person and industry, at stupendous costTheir words
Ours is an overwhelmingly fossil-fueled civilization, and the size and complexity of our extensive supersystem of fuel extraction, processing, distribution, storage, and conversion means that a complete displacement of it will directly affect every person and every industry, not least the growing of food and the long-distance transport of goods and people. The costs will be stupendous.
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Their words
But difficult and costly as those two endeavors were, they affected only small parts of the economy, their costs were relatively modest, and the lives of average citizens were hardly affected. It is just the opposite for the decarbonization of the energy supply.
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Their words
Today, no category mistake is perhaps more consequential than the all-too-common view of the global energy transition. The error is to think of the transition as the discrete, well-bounded task of replacing carbon fuels by noncarbon alternatives.
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