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this post was submitted on 01 Aug 2023
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Ooh a lot of people here seem very pro-nuclear-power. That's cool!
Unfortunately, there's still that one guy in the comments trying to say that hypothetical, largely unproven solutions are better for baseload than something that's worked for decades.
If you mean renewables by that, it's hardly hypothetical or unproven. I'm in Australia and south Australia and Tasmania (two of our states) have fully renewable grids, Tasmania for the past 7 years. South Australia does still occasionally pull from an interconnect but most of the time they're exporting a bunch of power.
Renewables with storage are cheaper and faster to build than nuclear and that's from real world costs. Nuclear would be fine if it wasn't so stupidly expensive.
South Australia is 70% renewables, as per their own official energy site.
Batteries are the limiting factor for renewables. Building battery storage that can supply a large city is expensive. Even the battery South Australia had Elon Musk build can only supply a town for about an hour. I'm hoping battery tech improves soon, but it seems to have stagnated for a while.
Ah sorry, my mistake. I messed up there.
The battery in SA is really just for grid stabilisation, not long term storage. Batteries are not really a good soln for longer duration storage. You need surprisingly little storage though when they've modelled fully renewable grids which is why the projected costs aren't stupidly expensive.
That's interesting, I'm an EE but in industry atm. I'd like to look into that whole scenario one day and see how much storage we'd need to go fully renewable.