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by Turing_Machine
1278 days ago
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Batteries don't store "power". They store energy. Uranium fission, on the other hand, produces energy. Comparing energy storage with energy production is not valid. Also, your numbers are way, way off. 1 kg of U-235 can produce about 24,000,000 kWh of energy. There's no way you're going to store that in 1 kg of lithium batteries. |
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You don't mine U235. You mine 99.3% U238 and then leave a third of your U235 in enrichment tailings (or burn it straight in a CANDU).
And storage of a given time duration is indexed by power. 1kW of diurnal storage is enough storage to provide 1kW over daily variation.
Extracting 1kg of Uranium nets you 1kW for a few years.
Extracting 1kg of Lithium nets you enough storage to run 1kW of solar + wind for several times as long.
The solar panel is made of about the same amount of sand as goes into the nuclear power plant. It is less limited by Silver than the control rods are limited by indium, silver and cadmium.