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submitted 10 months ago by lettruthout@lemmy.world to c/climate@slrpnk.net

"President Joe Biden’s administration on Wednesday finalized approval of $1.1 billion to help keep California’s last operating nuclear power plant running. "

Because renewable energy sources are too expensive?

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[-] Wahots@pawb.social 26 points 10 months ago

I'm all for nuclear power. We need to get off gas and coal ASAP, and nuclear is a reliable baseload power source that doesn't require massive arrays of lithium or lead batteries, and doesn't fluctuate with the rainy season. Ideally, I'd like us to go to more advanced nuclear power like molten salt reactors, but even light water is appreciated. I wouldn't mind it even in my own backyard. We need reliable energy.

[-] umbrella@lemmy.ml 4 points 10 months ago

how is a salt reactor better? i tought reactors were all just glorified water boilers?

[-] Wahots@pawb.social 6 points 10 months ago* (last edited 10 months ago)

It is, but it's safer, since it's a fuel salt loop that has radioactive fuel mixed in, which is too dilute to melt down. It powers a second, independent molten salt loop that goes to a water boiler elsewhere in the system. This has a variety of benefits, and also depends on the tech. But one, it stops meltdowns. And two, if the salt loop or boilers fail, it doesn't release superheated, radioactive steam since the boiler is elsewhere in the complex.

Some can also recycle radioactive fuel that is already spent too.

Molten salt technology also has other benefits, nuclear energy aside. In solar towers with molten salt technology, it boils salts which then power a steam turbine. The salts are fucking hot, and stay hot enough to boil water for 12 hours after the sun has stopped shining. In the morning, some fuel is used to heat up the salts in prep for the sunlight. So, while it does use a bit of carbon, it provides reliable baseload energy that can serve the grid uninterrupted at night/during storms :)

Can't get the pic to link right. Here's a solar tower

this post was submitted on 18 Jan 2024
36 points (75.0% liked)

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