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Anon questions our energy sector
(slrpnk.net)
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this post was submitted on 16 Nov 2024
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The watthours is what gas is for. Germany's pipeline network alone, that's not including actual gas storage sites, can store three months of total energy usage.
...or at least that's the original plan, devised some 20 years ago, Fraunhofer worked it all out back then. It might be the case that banks of sodium batteries or whatnot are cheaper, but yeah lithium is probably not going to be it. Lithium's strength is energy density, both per volume and by weight, and neither is of concern for grid storage.
That's physically impossible for a place the size of Germany, much less Europe.
Wouldn't it be better to go fossil free. Given, you know, climate change. And the fact that the gas needs to be shipped all the way from the US.
Unless we use a different technology, that is not renewables + storage?
Gas can be synthesised and we're going to have to do that anyway for chemical feedstock. Maintaining backup gas plant capacity is cheaper than you think, they don't need much maintenance if they're not actually running.
It's not technology it's physics. It is impossible for there to be no wind anywhere, at least as long as the sun doesn't explode and the earth continues to rotate and an atmosphere exists. If any of those ever fail electricity production will be the least of our worries.
Technology comes into play when it comes to shovelling electricity from one end of the continent to the other and yes we need more interconnects and beefier interconnects but it's not like we don't know how to do that, or don't already have a Europe-wide electricity grid. The issues are somewhere in between NIMBYism regarding pylons and "but we don't want to pay for burying the cable earthworks are expensive".
When's that going to happen? Right after the green hydrogen revolution?
They've been saying that for decades. It isn't happening. It's just natural gas.
Sorry, I didn't think someone would deny the existance of dunkelflautes. It's currently happening in Germany. (1).
Already happening, on a small (but industrial) scale. You can buy that stuff off the shelf, but it's still on the lower end of the sigmoid. Most new installations right now will be going to Canada and Namibia, we'll be buying massive amounts of ammonia from both.
Yes and elsewhere in Europe the wind is blowing. Differences in solar yields are seasonal (that's what those three months storage are for, according to Fraunhofer's initial plans), but reversed on the other side of the globe, and Germany would be better situated to tank differences in local wind production all by itself if e.g. Bavaria didn't hinder wind projects in their state. The total energy the sun infuses into the earth does change a bit over time, but that's negligible. In principle pretty much zero storage is needed as long as there's good enough interconnectivity.
...meanwhile, we'll probably have the first commercial fusion plant in just about the mean construction time of a fission plant.