For decades, government scientists have toiled away trying to make nuclear fusion work. Will commercial companies sprint to the finish?

21 points

If only there was some sort of big fusion ball in the sky which gave us vast amounts of energy that we could collect if we wanted to…

permalink
report
reply
12 points

Today’s shower thought: is a fusion power plant just a miniaturized Dyson Sphere?

permalink
report
parent
reply
7 points

I get where youre going but not exactly. The dyson sphere would use solar energy but the fusion reactor, a tokomak specifically, uses steam generated by water pumped through the system to help keep the walls of the tokomak cool, to spin steam powered turbines

permalink
report
parent
reply
11 points

I’m constantly amazed that we’re working on super advanced power generation techniques… that still use steam to spin turbines.

It feels like we should be doing something cooler, like plasma conduits from Star Trek.

permalink
report
parent
reply
1 point
Deleted by creator
permalink
report
parent
reply
1 point

How does the power grid work?:

https://www.youtube.com/watch?v=v1BMWczn7JM

permalink
report
parent
reply
14 points
*

I hope it works.

But I’m skeptical enough to say that I think this is a scam. We’re closing in, research wise, on getting fusion to generate more power than it takes to run. Which is awesome!

But its still a far trek from that figure, to producing enough power to be practical (I’ve heard it said you really need to aim for 10x more production than input, minimum, for it to make any sense).

And that is still a trek from making a fusion plant competitive with existing grid power.

I’m skeptical if this plant they’re building will even generate power, which is like three steps away from making commercial sense at all.

permalink
report
reply
2 points

You’re right, but you can’t use the word ‘scam’ for it. It’s an avenue that should be explored fully and may or may not lead somewhere. A scam would imply it’s a conspiracy where the players already know the unsuccessful end result, but are hiding it and using funding or similar for other end purposes.

permalink
report
parent
reply
4 points

That is what I think the owner is doing here. Scamming venture capital firms for a tech that cannot work.

And I mean, its not like I have any proof. I can’t read minds; maybe he is a true believer.

But this company feels like those companies back in the 80s that sold tickets to mars, for the rockets they were ‘just about to build’; a scam.

This isn’t a research firm. This isn’t trying to find the exact settings and layouts to make fusion possible. If the article can be taken at face value, this is a company to make a commercial fusion plant. And I find that, in 2023, patently absurd.

permalink
report
parent
reply
1 point

I don’t think I trust the commercial companies, but the research coming out of national labs is promising at least

permalink
report
parent
reply
13 points

Even if they miraculously figured out how to build a commercially viable reactor TODAY, it would be too late to be more than a tiny building block of a zero carbon strategy.
Building enough of them, including all necessary global infrastructure would take 30 years. If we continue business as usual till then, it’s already over.
And fusion would only reduce carbon emissions in the energy sector, not in transportation, shipping, resource gathering/refining, etc.

permalink
report
reply
8 points

Reducing carbon emissions isn’t the primary goal here though. The primary goal is infinite clean energy. INFINITE power. The plant in France could become operational within 5 years. The harnessing of this power is a milestone for our species.

permalink
report
parent
reply
2 points

fusion won’t give us infinite power. It requires tritium last I knew.

permalink
report
parent
reply
2 points

What’s the bottleneck there? Is there a reason why we couldn’t scale up production? Genuinely asking.

permalink
report
parent
reply
1 point

From what I understand tritium is the easiest but there are other ways to acheive fusion. Once we figure out deuterium-tritium fusion we should be able to work towards something like deuterium-deuterium fusion. You also have methods that can be used to manufacture tritium. One of the later stages of the ITER project is to attempt to use the reactor to breed tritium. If they can pull that off then there would be no need for external sources of tritium.

permalink
report
parent
reply
6 points

I still think it’s prudent to build the plants as a backup plan for zero emissions. The best time build a bunch of nuclear plants was 30 years ago, and the second best is now – because 30 years from now, I don’t want us to still be in the same situation of “we should’ve built them years ago”. Fusion has the capacity to be a nearly limitless, clean energy source. Even if we already have zero emissions when we turn them on, they can give us an abundance of energy we’ve never seen before.

Think about the possibilities if energy was free and unlimited. There’s a lot of stuff today that is limited because they’re energy inefficient. That would stop mattering. Clean water can be generated en masse through reverse osmosis. Everything gets easier to build and to operate. The only operating costs of significance would be maintenance. High speed travel hubs could be built anywhere and everywhere. Even the worst quality soil could be made arable. We could constantly monitor a bunch of parameters for the sake of monitoring them – we could determine for instance if we’re depleting seawater by significant levels when we purify it, and we can course correct it then and there. What could be a second climate crisis otherwise would be nipped in the bud since we wouldn’t have to wait so long to see after effects.

I’m talking like a kid at a candy store, but it’s honestly super exciting to think about. This would be the next step for energy after sustainability, and it would completely transform everything for the better.

permalink
report
parent
reply
3 points

Genuinely curious in what world do you think humanity’s energy needs are not going to increase over time?

permalink
report
parent
reply
1 point

Efficiency will get better, and population will likely start to decline. But I don’t know if more demand from people coming out of substance farming will be more or less than the less usage from efficiency and population decline.

permalink
report
parent
reply
1 point

In the one where areas with a billion inhabitants become unsuitable for human habitation in 20 years, and the resulting mass migration takes down civilization as we know it.

permalink
report
parent
reply
10 points

If it doesn’t work, it doesn’t work. Back to the drawing board.

If it works, then let’s reproduce it a couple times to be sure that it works, and then start pouring concrete. Fusion isn’t worth pursuing just because of global warming, but because it’s akin to making energy out of nothing. We would have a nigh limitless capacity for conducting fusion and generating energy. A future with unlimited energy isn’t a climate goal necessarily, it’s a massive leap for humanity overall.

permalink
report
reply
2 points
*

Unfortunately everything I have read indicates very few experts in nuclear energy believe it could be possible in the future.

permalink
report
parent
reply
2 points

I have very significant doubts myself yeah

permalink
report
parent
reply
6 points

It will work eventually. Just give them another 25 years.

permalink
report
reply

News

!news@lemmy.world

Create post

Welcome to the News community!

Rules:

1. Be civil

Attack the argument, not the person. No racism/sexism/bigotry. Good faith argumentation only. This includes accusing another user of being a bot or paid actor. Trolling is uncivil and is grounds for removal and/or a community ban. Do not respond to rule-breaking content; report it and move on.


2. All posts should contain a source (url) that is as reliable and unbiased as possible and must only contain one link.

Obvious right or left wing sources will be removed at the mods discretion. We have an actively updated blocklist, which you can see here: https://lemmy.world/post/2246130 if you feel like any website is missing, contact the mods. Supporting links can be added in comments or posted seperately but not to the post body.


3. No bots, spam or self-promotion.

Only approved bots, which follow the guidelines for bots set by the instance, are allowed.


4. Post titles should be the same as the article used as source.

Posts which titles don’t match the source won’t be removed, but the autoMod will notify you, and if your title misrepresents the original article, the post will be deleted. If the site changed their headline, the bot might still contact you, just ignore it, we won’t delete your post.


5. Only recent news is allowed.

Posts must be news from the most recent 30 days.


6. All posts must be news articles.

No opinion pieces, Listicles, editorials or celebrity gossip is allowed. All posts will be judged on a case-by-case basis.


7. No duplicate posts.

If a source you used was already posted by someone else, the autoMod will leave a message. Please remove your post if the autoMod is correct. If the post that matches your post is very old, we refer you to rule 5.


8. Misinformation is prohibited.

Misinformation / propaganda is strictly prohibited. Any comment or post containing or linking to misinformation will be removed. If you feel that your post has been removed in error, credible sources must be provided.


9. No link shorteners.

The auto mod will contact you if a link shortener is detected, please delete your post if they are right.


10. Don't copy entire article in your post body

For copyright reasons, you are not allowed to copy an entire article into your post body. This is an instance wide rule, that is strictly enforced in this community.

Community stats

  • 14K

    Monthly active users

  • 20K

    Posts

  • 525K

    Comments