You are viewing a single thread.
View all comments View context
15 points

Because there are nights there are winters there are cloudy and rainy days, and there are no batteries capable of balancing all of these issues. Also when you account for those batteries the cost is going to shift a bit. So we need to invest in nuclear and renewables and batteries. So we can start getting rid of coal and gas plants.

permalink
report
parent
reply
25 points

But Germany has no space for nuclear waste. They haven’t been able to bury the last batch for over 30 years. And the one that they buried most recently began to leak radioactivity into ground water.

And… why give Russia more military target opportunities?

permalink
report
parent
reply
12 points

I’m not a rabid anti-nuclear, but there are somethings that are often left out of the pricing. One is the exorbitant price of storage of spent fuel although I seem to remember that there is some nuclear tech that can use nuclear waste as at least part of it’s fuel (Molten salt? Pebble? maybe an expert can chime in). There is also the human greed factor. Fukushima happened because they built the walls to the highest recorded tsunami in the area, to save on concrete. A lot of civil engineering projects have a 150% overprovision over the worst case calculations. Fukushima? just for the worst case recorded, moronic corporate greed. The human factor tends to be the biggest danger here.

permalink
report
parent
reply
3 points

Not an expert, but molten salt reactors are correct. MSRs are especially useful as breeder reactors, since they can actually reinvigorate older, spent fuel using more common isotopes. Thorium in particular is useful here. Waste has also been largely reduced with the better efficiency of modern reactors.

Currently, Canada’s investing in a number of small modular reactors to improve power generation capacity without the need to establish entire new nuclear zones and helps take some of the stress off the aging CANDU reactors. These in particular take advantage of the spent fuel and thorium rather than the very expensive and hard to find Uranium more typically used. There’s been interest in these elsewhere too, but considering how little waste is produced by modern reactors, and the capacity for re-use, it feels pike a very good way to supplement additional wind and solar energy sources.

permalink
report
parent
reply
2 points
*

… there are somethings that are often left out of the pricing

Another example that gets skimmed over or ignored is the massive cost of decommissioning a nuclear power plant. It typically ranges from $280 million to $2 billion, depending on the technology used. More complex plants can be up to $4 billion. And the process can take 15 to 30 years to complete.

permalink
report
parent
reply
2 points

there is some nuclear tech that can use nuclear waste as at least part of it’s fuel

Those are less competitive, and salt reactor attempts have historically caused terminating corrosion problems. The SMR “promise” relies on switching extremely expensive/rare/dangerous plutonium level enriched fuel, that rely on traditional reactors for enrichment, for slightly lower capital costs.

permalink
report
parent
reply
8 points

If France can find space, surely Germany can.

permalink
report
parent
reply
3 points

If Finland could find space, Germany definitely can.

permalink
report
parent
reply
22 points
*

Also when you account for those batteries the cost is going to shift a bit.

You better be bringing units if you’re going to be claiming this.

Still less than half of the LCOE of nuclear when storage is added: https://www.statista.com/statistics/1475611/global-levelized-cost-of-energy-components-by-technology/

Given that both solar and storage costs are trending downwards while nuclear is not, this basically kills any argument for nuclear in the future. It’s not viable on its face - renewables + storage is the definitive future.

permalink
report
parent
reply
3 points

And cheaper solar and batteries permits cheaper Hydrogen which provides unlimited and 100% resilient renewable power, and still cheaper than nuclear.

permalink
report
parent
reply
1 point

I have a generally negative impression of hydrogen because many of the intended use-cases seem to be a cover story for the gas industry to keep existing, which it very much should not be any more.

Do you know any use-cases where hydrogen is truly warranted, outside for example steel production, which I think might be legit?

permalink
report
parent
reply
13 points

You’re using factors of less than 10 to argue against a factor of 100.

permalink
report
parent
reply
2 points

The batteries needed are a lot less than you might think. Solar doesn’t work at night and the wind doesn’t always blow, but we have tons of regional weather data about how they overlap. From that, it’s possible to calculate the maximum historical lull where neither are providing enough. You then add enough storage to handle double that time period, and you’re good.

Getting 95% coverage with this is a very achievable goal. That last 5% takes a lot more effort, but getting to 95% would be a massive reduction in CO2 output.

permalink
report
parent
reply

Technology

!technology@lemmy.world

Create post

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


Community stats

  • 14K

    Monthly active users

  • 6.8K

    Posts

  • 156K

    Comments