this post was submitted on 08 Sep 2023
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Nuclear capacity is expected to rise by 14% by 2030 and surge by 76% to 686 GWe by 2040, the report said

This is only good news if it displaces thermal coal and gas generating stations.

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[–] [email protected] 22 points 1 year ago* (last edited 1 year ago) (41 children)

When it comes to generating electricity, nuclear is hugely more expensive than renewables. Every 1000Wh of nuclear power could be 2000-3000 Wh solar or wind.

If you’ve been told “it’s not possible to have all power from renewable sources”, you have been a victim of disinformation from the fossil fuel industry. The majority of studies show that a global transition to 100% renewable energy across all sectors – power, heat, transport and industry – is feasible and economically viable.

This is all with current, modern day technology, not with some far-off dream or potential future tech such as nuclear fusion, thorium reactors or breeder reactors.

Compared to nuclear, renewables are:

  • Cheaper
  • Lower emissions
  • Faster to provision
  • Less environmentally damaging
  • Not reliant on continuous consumption of fuel
  • Decentralised
  • Much, much safer
  • Much easier to maintain
  • More reliable
  • Much more capable of being scaled down on demand to meet changes in energy demands

Nuclear power has promise as a future technology. But at present, while I’m all in favour of keeping the ones we have until the end of their useful life, building new nuclear power stations is a massive waste of money, resources, effort and political capital.

Nuclear energy should be funded only to conduct new research into potential future improvements and to construct experimental power stations. Any money that would be spent on building nuclear power plants should be spent on renewables instead.

Frequently asked questions:

  • But it’s not always sunny or windy, how can we deal with that?

While a given spot in your country is going to have periods where it’s not sunny or rainy, with a mixture of energy distribution (modern interconnectors can transmit 800kV or more over 800km or more with less than 3% loss) non-electrical storage such as pumped storage, and diversified renewable sources, this problem is completely mitigated - we can generate wind, solar or hydro power over 2,000km away from where it is consumed for cheaper than we could generate nuclear electricity 20km away.

  • Don’t renewables take up too much space?

The United States has enough land paved over for parking spaces to have 8 spaces per car - 5% of the land. If just 10% of that space was used to generate solar electricity - a mere 0.5% - that would generate enough solar power to provide electricity to the entire country. By comparison, around 50% of the land is agricultural. The amount of land used by renewable sources is not a real problem, it’s an argument used by the very wealthy pro-nuclear lobby to justify the huge amounts of funding that they currently receive.

  • Isn’t Nuclear power cleaner than renewables?

No, it’s dirtier. You can look up total lifetime emissions for nuclear vs. renewables - this is the aggregated and equalised environmental harm caused per kWh for each energy source. It takes into account the energy used to extract raw materials, build the power plant, operate the plant, maintenance, the fuels needed to sustain it, the transport needed to service it, and so on. These numbers always show nuclear as more environmentally harmful than renewables.

  • We need a baseline load, though, and that can only be nuclear or fossil fuels.

Not according to industry experts - the majority of studies show that a 100% renewable source of energy across all industries for all needs - electricity, heating, transport, and industry - is completely possible with current technology and is economically viable. If you disagree, don’t argue with me, take it up with the IEC. Here’s a Wikipedia article that you can use as a baseline for more information: https://en.m.wikipedia.org/wiki/100%25_renewable_energy

[–] [email protected] 1 points 1 year ago (3 children)

Here are some sources. You can also run your own study yourself by just googling "average kwh price nuclear" and "average kwh price wind" and see how it looks. You can also google "average co2 eq emissions total lifetime nuclear" and likewise for wind/solar PV.

2022 Electricity ATB Technologies and Data Overview, annual technology baseline:

https://www.dw.com/en/fact-check-is-nuclear-energy-good-for-the-climate/a-59853315

Mycle Schneider, author of the World Nuclear Industry Status Report: "Nuclear power plants are about four times as expensive as wind or solar, and take five times as long to build. When you factor it all in, you're looking at 15-to-20 years of lead time for a new nuclear plant."

Differences in carbon emissions reduction between countries pursuing renewable electricity versus nuclear power, published in nature energy: "We find that larger-scale national nuclear attachments do not tend to associate with significantly lower carbon emissions while renewables do. "

[–] bouh 11 points 1 year ago (2 children)

The last paper is insane. France has one of the lowest co2 emission in the world because of nuclear. Meanwhile Germany and Spain have increased their emission despite insane investment in renewable.

As for average costs it's a farce. Renewable prices are negative sometimes because you produce loads of energy when you don't need it. If it wasn't for nuclear and fossile to produce energy when you need, there wouldn't even be a functioning power grid.

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