this post was submitted on 05 Mar 2024
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Unpopular Opinion

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[–] [email protected] 19 points 1 year ago* (last edited 1 year ago) (32 children)

I'm not sure if that's an unpopular opinion so much as a completely incorrect one.

The simple truth is that nuclear is fucking expensive and takes a long time to build.

Renewables and storage are much cheaper and take way less time to start producing energy.

Given this, why would you be in favor of nuclear? Please don't try and tell me about base load (not needed), SMRs (even more expensive) or fusion (not going to happen in our lifetimes)

[–] [email protected] 24 points 1 year ago (12 children)

Given this, why would you be in favor of nuclear? Please don't try and tell me about base load (not needed), SMRs (even more expensive) or fusion (not going to happen in our lifetimes)

Peak-load scaling. The major advantage that fossil fuel generators have is that you can spin them up faster to react to higher demand. You can't do that with solar or wind, but you can with nuclear.

If we had grid-scale storage solutions, dealing with peak load would be easier but it's still more cost effective to build pumped hydro storage than large battery arrays. Most electric grids have to produce electricity on-demand which means they have to be highly responsive.

We don't have good grid-scale storage yet. We need demand-responsive energy production. Fission is better than burning coal.

[–] [email protected] -3 points 1 year ago (11 children)

You can’t do that with solar or wind, but you can with nuclear.

That's why I said renewables and storage. There are lots of storage technologies such as pumped hydro and various kinds of battery that can react very quickly to increased demand. You categorically cannot do that with nuclear, where did you learn this?

Firstly, nuclear needs to run 24/7 as it's not economically feasible to do anything else given how much these things cost. Secondly, you're still heating water to create steam to drive turbines to generate electricity. All of that takes time to ramp up and means that nuclear is not used to generate in response to increased demand.

[–] [email protected] 9 points 1 year ago (1 children)

Yes, but your assertion that renewable is cheaper completely ignored the cost of grid scale energy storage suitable to remove fossil fuel generation.

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