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| Germany shutting down last nuclear power plants on April 15th |
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| nctnico:
--- Quote from: Siwastaja on April 16, 2023, 06:09:00 pm ---This could prove way more practical than hydrogen, but I don't know enough about the proposed hydrogen solution to really say anything about it for sure. It just sounds suspicious, while I know the geothermal storage option does actually work and has good track record, nothing novel in it. --- End quote --- The thing is that hydrogen can be traded as a commodity and/or converted into electricity while heat can not. That doesn't mean thermal storage isn't on the radar but only for hot water / heating purposes. There are several geothermal plants in operation already and there are some companies that have developed underground seasonal heat storage systems for buildings / district heating but these run into serious permitting issues as it is not clear wether the heat storage system is part of a building or not. So local governments don't know what kind of permit a heat storage system falls under. Using underground aquifers is more likely to happen (compared to using empty gas fields) and it is being researched as well. BTW, you can't store water in a salt cavern because salt dissolves in water. |
| daqq:
--- Quote from: nctnico on April 16, 2023, 06:34:15 pm ---That doesn't mean thermal storage isn't on the radar but only for hot water / heating purposes. --- End quote --- There is a concept out there that could do this in theory: https://helioscsp.com/mit-proposes-pv-to-discharge-energy-from-2400c-silicon-thermal-storage/ I'm guessing pretty bad total efficiency, though the output might be utility heat + electricity? In other news, seems not all German politicians had their brains scooped out when it comes to energy: https://www.reuters.com/article/germany-energy-nuclear-bavaria-idUKL1N36I0J7 |
| SiliconWizard:
So with all these great ideas, have we saved the planet yet? ;D |
| coppercone2:
I think its a solid plan if it works out in the end, less danger. It seems good land and reputation for safety have become more important for countries then cheap rates. I think a nuclear meltdown is one of the few things that can in 1 day really hurt a country for 100 years to come. You just can't fix that. I expect the litigation resulting from a nuclear incident in the EU would dwarf savings very quickly. Don't want to pay even more reparations for some cloud of dust you sent to Finland or something lol |
| Kleinstein:
--- Quote from: daqq on April 16, 2023, 09:00:20 pm --- --- Quote from: nctnico on April 16, 2023, 06:34:15 pm ---That doesn't mean thermal storage isn't on the radar but only for hot water / heating purposes. --- End quote --- There is a concept out there that could do this in theory: https://helioscsp.com/mit-proposes-pv-to-discharge-energy-from-2400c-silicon-thermal-storage/ I'm guessing pretty bad total efficiency, though the output might be utility heat + electricity? In other news, seems not all German politicians had their brains scooped out when it comes to energy: https://www.reuters.com/article/germany-energy-nuclear-bavaria-idUKL1N36I0J7 --- End quote --- In theory thermal storage at very high temperature could work, but it would be low effiviency when converting back to electricty. At the very high temperatures the stress to the matrials can also be quite substantial. It would also only work on a relatively large scale to keep the heat loss reasonable. For the idea to restart the residual German NPPs: this makes relatively little sense and also the power companies don't think it is practical, as a restart would take 1-2 years at least. The plants would need a major revision and there are not even regulations and thus no plans or preparations for that. The idea of a restart is more like a pre-election idea of someone who is not in charge nor running for the relevant position. So this is just for publicity. |
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