this post was submitted on 09 Aug 2023
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[–] Hector_McG@programming.dev -4 points 1 year ago (6 children)

While nuclear power produces bountiful clean energy,

Well no, it doesn’t, not at the moment. It may be low carbon, but it certainly isn’t clean, as the £120 billion ( and rapidly rising) costs of cleaning up the Sellafield site demonstrates. A cost so large that the “low-cost electricity” argument used to justify it’s build are proven to be false- the electricity wasn’t cheap, it was very expensive, the bill was just deferred until end-of-life.

[–] Uranium_Green@slrpnk.net 5 points 1 year ago (3 children)

Though it's also worth pointing out that Sellafield is Europe's largest nuclear site and has operated since the 40's and suffered the disaster in 1957 when reactor design, nuclear safety and safe handling were in their infancy, and the world was just starting to explore harnessing nuclear power generation.

And also to be more relevant to the subject of the article; this is one of the reasons why fusion should be being researched, much lower chance of problems arising from waste/risk of meltdown etc.

Fusion isn't fission, it could provide relatively cheap and clean nuclear power.

[–] notapantsday@feddit.de -1 points 1 year ago (1 children)

I find it hard to imagine a future where fusion power would be cheap. The reactors will most likely be highly complex, with very expensive materials and lots of custom parts. Fission reactors are much simpler and even they have become too expensive to run without subsidies. ITER is supposed to cost 22 billion, but the US DOE estimates it will be closer to 65 billion. And ITER is a tiny test reactor that will still draw energy from the grid while running. If we ever get a fusion reactor that can actually produce energy, it's going to be so much bigger and more complex than ITER. And it will have a maximum output and operating life, so a finite amount of energy it can produce during its lifetime. Divide the cost for R&D and construction by the amount of energy produced, and it will most likely come out as much more than solar/wind + storarge.

[–] Uranium_Green@slrpnk.net 0 points 1 year ago

I'm personally quite interested in Helions design of fusion reactor, whilst I don't necessarily think they'll be the first to achieve a design viable of continuous operation, I think the insights gained from the much more complex and expensive "tradition" fusion reactors will hopefully help inform their design and make something viable for smaller scale cheaper operation that could be rolled out on a grander scale.

One thing that is apparent with energy tech is that it always starts out expensive and typically goes down in price due to wide adoption and large scale production.

Re the issues with operating life, etc; there are similar issues with almost every option whether solar/wind etc

Obviously either way we're going to run into issues with large scale energy storage. Here's hoping Sodium batteries provide some effective respite for that in the near future.

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