this post was submitted on 01 Aug 2023
11 points (100.0% liked)

Technology

59174 readers
2689 users here now

This is a most excellent place for technology news and articles.


Our Rules


  1. Follow the lemmy.world rules.
  2. Only tech related content.
  3. Be excellent to each another!
  4. Mod approved content bots can post up to 10 articles per day.
  5. Threads asking for personal tech support may be deleted.
  6. Politics threads may be removed.
  7. No memes allowed as posts, OK to post as comments.
  8. Only approved bots from the list below, to ask if your bot can be added please contact us.
  9. Check for duplicates before posting, duplicates may be removed

Approved Bots


founded 1 year ago
MODERATORS
 

First U.S. nuclear reactor built from scratch in decades enters commercial operation in Georgia::ATLANTA — A new reactor at a nuclear power plant in Georgia has entered commercial operation, becoming the first new American reactor built from scratch in decades.

top 16 comments
sorted by: hot top controversial new old
[–] [email protected] 1 points 1 year ago (1 children)

Good news. Anything but fossil fuels at this point.

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

The reduced operating emissions take 10+ years to outweigh the enormous construction emissions of nuclear. (Compared to gas.)

[–] [email protected] 1 points 1 year ago

Fortunately the nuclear reactor can be operated for >50 years :)

[–] [email protected] 1 points 1 year ago

Ooh a lot of people here seem very pro-nuclear-power. That's cool!

[–] [email protected] 0 points 1 year ago (1 children)

Oh, neat. My state did something not completely stupid. I've got some reservations about nuke power as opposed to renewable, but this is definitely better than continuing fossil fuels.

[–] [email protected] 0 points 1 year ago (1 children)

Fission and fusion reactors are really more like in-between renewable and non-renewable. Sure, it relies on materials that are finite, but there is way, way more of that material available in comparison to how much we need.

Making this distinction is necessary to un-spook people who have gone along with the panic induced by bad media and lazy engineering of the past.

[–] [email protected] 1 points 1 year ago* (last edited 7 months ago) (1 children)
[–] [email protected] 0 points 1 year ago (1 children)

I'm spooked by the fact that you have no idea how the US enriches uranium, or the difference between a power pressurized water reactor and a fast "breeder" reactor (if you were thinking of plutonium) or a centrifuge.

The US enriches uranium using a gas-centrifuge. The US also no longer recycles spent nuclear fuel, but France does.

[–] [email protected] 1 points 1 year ago* (last edited 7 months ago)
[–] [email protected] 0 points 1 year ago (1 children)

Oh wow really? Hope it kicks off some good news for other plants in the future.

[–] [email protected] 0 points 1 year ago (1 children)

The good news - it's online, generating clean power, and hopefully demonstrating the safety and benefits of modern nuclear plants.

The bad news - it's $17B over budget (+120%) and 7 years behind schedule (+100%). Those kind of overages aren't super promising for investors, but perhaps there are enough lessons learned on this one that will help the next one sail a little smoother.

Either way, good to see it can still be done in the US.

[–] [email protected] 0 points 1 year ago (1 children)

Let it run 5 months and the money is back in.

[–] [email protected] 0 points 1 year ago (1 children)

Not really. All costs considered, nuclear is one of the most expensive energy sources.

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

Yes nuclear power plants are very expensive. But the energy density is phenomenal.

Energetic armortisation is far quicker on a nuclear plant than on solar panels.

And the argument of subsidies is usually a fake one, since governments also pour millions into renewable energies.

Broken down to lifetime cost to the cost of comparable technologies, nuclear is still on the same level as solar and wind.

Since I am from Germany, and German sources might not be ideal to share, let me explain it this way: People are not stupid. They will never choose the financially unwise option, if the other one would seriously be the better one.

[–] [email protected] 0 points 1 year ago* (last edited 1 year ago) (1 children)

Can you find any recent analysis that supports your claim that nuclear costs are at the same level as solar?

The only one I’ve seen suggest this was from a nuclear industry lobby group, and it inflated the costs or solar by insane amounts.

In Australia this is a bit of a hot topic and all impartial estimates suggest that nuclear will not get close to renewables in any way, even taking into account storage and grid costs.

In the 10 years since this single reactor was built, one of our states has transitioned to almost 100% renewables. Wholesale costs have plummeted, but renewable projects are still profitable in the market. I was involved in a reactor project in a western nation some time ago (it’s still being completed unsurprisingly), and the lock-in wholesale price to support that project was simply extortionate. Solar generation prices are a whole magnitude smaller.

[–] [email protected] 1 points 1 year ago

This is a German source that incorporates many studies and presents their results. Some agree with my statement, some with yours. But fact is, that the financial difference is very small.

https://www.bundestag.de/resource/blob/887090/1867659c1d4edcc0e32cb093ab073767/WD-5-005-22-pdf-data.pdf

Page 23 for example suggests my statement.

On page 32 you can see the development that suggests that you are right.

But considering the costs for the expansion of the energy grid, battery storage systems, and the rising production costs of everything, I believe Nuclear to be the cheaper option and the far more reliable one.