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submitted 1 year ago by L4s@lemmy.world to c/technology@lemmy.world

Solar power and storage prices have dropped almost 90%::undefined

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[-] IchNichtenLichten@lemmy.world 19 points 1 year ago

Tell me again about how we need to build more nuclear.

[-] atzanteol@sh.itjust.works 40 points 1 year ago

We definitely need to build more nuclear.

[-] Cornpop@lemmy.world 12 points 1 year ago

Agreed. 1000x. Solar alone can't save us.

[-] IchNichtenLichten@lemmy.world 2 points 1 year ago

Nice straw man. Nobody is arguing 100% solar.

[-] Cornpop@lemmy.world 0 points 1 year ago

Hence why we need nuclear as well... nice fail.

[-] IchNichtenLichten@lemmy.world 0 points 1 year ago

I agree that you failed with your straw man. Got anything else?

[-] Cornpop@lemmy.world 0 points 1 year ago

I'll let your downvotes and my upvotes speak for themselves. You fail. Again.

[-] IchNichtenLichten@lemmy.world 0 points 1 year ago

Thanks, now we've established you have no argument apart from a straw man and the realization that most people are wrong about the need for new nuclear. You can run along now.

[-] MisterD@lemmy.ca 4 points 1 year ago

And we need to do reactors with liquid fuels instead of solid fuel

[-] IchNichtenLichten@lemmy.world 2 points 1 year ago

You realize uranium isn't a liquid, right?

[-] nrezcm@lemmy.world 2 points 1 year ago

You must construct additional nuclear.

[-] ikidd@lemmy.world 26 points 1 year ago

Solar and nuclear address completely different goals.

[-] IchNichtenLichten@lemmy.world 3 points 1 year ago

I know. Nuclear provides base load power, which can be argued is not needed any more.

https://www.zdnet.com/article/why-baseload-power-is-doomed/

[-] V0lD@lemmy.world 3 points 1 year ago* (last edited 1 year ago)

Maybe I missed some points by skimming, but the arguments made in that article are that:

  • 1 Australian researcher agrees with his stance

  • a region had 22% of its power produced by wind at one point

I guess the claim "it can be argued" is technically proven true, but the majority opinion I keep hearing from the electrical grid engineers in the news is the opposite

And, well, sometimes it just simply is night, and sometimes the wind doesn't blow. We don't have the battery tech to run from storage alone

But, honestly why wouldn't we use nuclear? It's the one power source we have without any real downsides untill ITER finally brings positive results

[-] IchNichtenLichten@lemmy.world 1 points 1 year ago

And, well, sometimes it just simply is night, and sometimes the wind doesn’t blow.

Do you really think this isn't already taken into account?

We don’t have the battery tech to run from storage alone

Nobody is making that argument, as far as I'm aware. There are plenty of ways of storing energy, e.g. pumped hydro, that would work in conjunction with battery storage.

But, honestly why wouldn’t we use nuclear?

The obvious one. It's wildly expensive when compared to renewables, and that's before the usual nuclear build issues of cost and schedule overruns.

[-] Mustard 2 points 1 year ago

It can be argued but only poorly.

[-] IchNichtenLichten@lemmy.world 1 points 1 year ago

Feel free to offer corrections.

[-] Mustard 1 points 1 year ago

The argument is one of efficiency and load distribution. Base load power plants are capable of greater efficiency than variable ones. This is down to optimisations made around specific output levels and the infrastructure required to support said loads. For example if you know the characteristics of your power output and that of the grid you can build a transformer or switch mode power supply to bridge that specific gap. This outperforms variable input transformers in every case.

There is an argument that low efficiency doesn't matter if the source is renewable, but this fails to take into consideration the embodied energy cost of producing renewable generators, not to mention the increased cost. An inefficient system may not produce enough energy over the course of its lifetime compared to the energy it cost to make.

Finally, most sources of renewables are intermittent and are not necessarily related to the population's power consumption. This makes the storing of energy necessary in order to regulate supply. Storage of energy is a large source of inefficiency and one of the key areas that is being focused on. Base load plant is absolutely necessary to minimise this inefficiency as much as possible.

For a good overview I recommend this site from Penn State Uni: https://www.e-education.psu.edu/eme807/node/667

[-] IchNichtenLichten@lemmy.world 1 points 1 year ago* (last edited 1 year ago)

These sound more like arguments in support of a distributed power grid rather than arguments for nuclear.

You keep referring to inefficiency but in real terms nuclear is so expensive that inefficiencies in renewables are a drop in the bucket in comparison.

[-] Mustard 1 points 1 year ago

What do you mean by a distributed power grid? Do you mean power generation happening locally? This is already a thing and is growing in the form of Combined Heat and Power. This doesn't get rid of the need for base load, the overall grid will still need balancing and will still have a base load unless you plan to disconnect local grids from each other in which case welcome to Texas...

Money is not the point here (even though nuclear really doesn't cost much per kWh). I'm talking about the need to build a system that will produce more power over it's lifetime than it costs to make. This is still something that is surprisingly close in many cases so any extra bit of inefficiency risks making the overall system pointless.

[-] Buffalox@lemmy.world 1 points 1 year ago

We need nuclear because it can cover 20% for 50 years, then we are out of suitable Uranium (allegedly).

That includes an expected undiscovered amount of twice of what has already been discovered.

Clearly nuclear can't solve the climate change problem alone.

this post was submitted on 27 Sep 2023
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