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Interesanti par to, kāpēc kodolenerģija un kapitālisms nav savietojamas lietas. [Dec. 4th, 2023|12:28 pm]
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From:[info]zazis
Date:December 4th, 2023 - 12:39 pm
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"Non-Nuclear Options Save More Carbon Per Dollar. Nuclear new-build costs have been on the rise for many years (see previous WNISR editions). Just in the past five years, U.S. solar and wind prices fell by two-thirds, putting new nuclear power out of the money by about 5–10-fold (see Nuclear Power vs. Renewable Energy Deployment). Nuclear new-build costs many times more per kWh, so it buys many times less climate solution per dollar than major low-carbon competitors—efficiency, wind and solar. Newer technologies do not change this: in the latest nuclear designs, so-called Gen-III+ reactors, ~78–87 percent of total costs is for the non-nuclear part. Thus, if the other ~13–22 percent, the “nuclear island”, were free, the rest of the plant would still be grossly uncompetitive with renewables or efficiency. That is, even free steam from any kind of fuel or fission is not good enough, because the rest of the plant costs too much. The business case for modern renewables is so convincing to investors that the latest official U.S. forecast foresees 45 GW of renewable additions from mid-2019 to mid-2022, vs. net retirements of 7 GW for nuclear and 17 GW for coal." p24

"Stabilizing the climate is urgent, nuclear power is slow. It meets no technical or operational need that these low-carbon competitors cannot meet better, cheaper, and faster. Even sustaining economically distressed reactors saves less carbon per dollar and per year than reinvesting its avoidable operating cost (let alone its avoidable new subsidies) into cheaper efficiency and renewables"
From:[info]antiprojekcija
Date:December 4th, 2023 - 01:11 pm
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Droši vien to tā īsti nevar nošķirt - ir liela atšķirība starp "non-nuclear" part AES - kur vajag visādas drošības sistēmas, izolāciju, utt, un "non-gas" part, piemēram, kaut kādā TEC.

Šis ir lielais iemesls, kāpēc tie SMR nekad nevarēs atmaksāties - tai "non-nuclear" infrastruktūrai jābūt analoģiskai pat, ja pats reaktors ir maziņš.
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From:[info]zazis
Date:December 4th, 2023 - 02:15 pm
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lasu to kodolenerģijas industrijas raportu, kas nākamajā komentā, un esu šokā. tas viss tik ļoti izskatās pēc globāla skama, ka bail.
acīmredzot šī būs kārtējā lieta, ko brīvais tirgus sakārtos (:
From:[info]antiprojekcija
Date:December 4th, 2023 - 02:40 pm
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Man liekas, ka kodolenerģija makes sense tikai kā piesegs un cilvēkresursu/degvielas avots militārai kodolprogrammai. Un varbūt kā ārpolitikas instruments. Ekonomiski šie projekti nekad vēsturē nav bijuši konkurētspējīgi.
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From:[info]zazis
Date:December 4th, 2023 - 03:01 pm
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mhm, un kļūst aizvien nekonkurētspējīgāki.

ļoti ceru, ka beidzot tiks sadomāta sakarīga enerģijas uzglabāšanas tehnoloģija. ļoti.

"Levelized Cost of Energy (LCOE) analysis for the U.S. shows that the total costs of
renewables are now below of coal and combined cycle gas. Between 2009 and 2018, utilityscale solar costs came down 88 percent and wind 69 percent, while new nuclear costs increased
by 23 percent."