this post was submitted on 04 Sep 2023
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With climate change looming, it seems so completely backwards to go back to using it again.

Is it coal miners pushing to keep their jobs? Fear of nuclear power? Is purely politically motivated, or are there genuinely people who believe coal is clean?


Edit, I will admit I was ignorant to the usage of coal nowadays.

Now I'm more depressed than when I posted this

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[โ€“] [email protected] 7 points 10 months ago (2 children)

In my country, because of a decades long fearmongering and disinfomation campaing that destoyed the nuclear energy industry. So now we're stucked with coal to keep the power running at night and during winter.

[โ€“] [email protected] 2 points 10 months ago* (last edited 10 months ago) (2 children)

Well, nuclear energy is expensive anyways and the amount of uranium on this world seems quite limited.

It's just not the technology of the future. In the long term we should use regenerative energies that are way cheaper.

[โ€“] [email protected] 2 points 10 months ago (1 children)

Right, but that's why people are talking about nuclear as a bridge technology, not as a permanent solution. Whether or not we can make it pencil out before smashing through all of the critical tipping points in global temperature averages is not something I'm qualified to have an opinion on, but I'm credibly informed that we might at least want to give it a serious look.

[โ€“] [email protected] 2 points 10 months ago

At one point in the future I'm sure we can look back, do the calculations and see if that had been a good bridge or an expensive thing for the taxpayer to deal with the dismantling and long time storage.

As of now I think the time of that bridge technology has come to an end anyways. We now have efficient renewable energies available. And concepts for energy storage. I think we should invest in that instead of putting the money into a thing of the past.

[โ€“] [email protected] -1 points 10 months ago (1 children)

Well you didn't google any of that.

Nuclear power plants are expensive to build but the cost of running one especially when adjusted to the amount of electricity it produces is not significantly more than running any other power plant. Also uranium is not considered to be a gobally scarce resource.

[โ€“] [email protected] 3 points 10 months ago* (last edited 10 months ago) (1 children)

That's also what I believed. But turns out nuclear is the most expensive kind of energy.

Here's a good summary: https://www.youtube.com/watch?v=0kahih8RT1k

(Seriously, watch it)

[โ€“] [email protected] 0 points 10 months ago* (last edited 10 months ago) (1 children)

The high cost is largely explained by the fact that there's no "standard model" for nuclear power plants but instead they're all designed and built from scratch which can make them really expensive. Olkiluoto 3 nuclear power plant in Finland is the world's 8th most expensive building at whopping 12 billion dollar cost to build. The original price estimate was 3 billion. Many of the buildings on that list ahead of Olkiluoto 3 are also nuclear power plants.

This however isn't some inherent probem about nuclear power itself but rather the way we do it. It doesn't need to be that expensive.

[โ€“] [email protected] 2 points 10 months ago* (last edited 10 months ago) (1 children)

Yeah, I'm still not convinced. If current state of the art makes it 5 times more expensive than current state solar or wind. Your explanation needs to be more than 'but we choose to build it more expensive than it needs to be'.

Sure theoretically this might not be an inherent problem. But the same applies to renewable. I'm not sure if solar or wind are close to something limiting their efficiency or cost of production. There might be new technology advancing both of them. We can talk about this and look for more information. But it's a very hypothetical discussion. As of now in the real world, there are real-world power plants and if no-one can demonstrate to bridge that big gap in economic efficiency... Maybe there's something to it...

And apart from that. I'd argue that there are some inherent problems. For example mega-projects having issues with their budget. That's a very interesting topic but inherent to big and complex projects for several reasons. Also a nuclear plant and all the infrastructure around it is inherently more complex and more expensive than for example a wind turbine and what we need to assemble a bit of steel tubing, wings and a bit of copper. (Broadly speaking.) I think it's a combination of factors. But I'd be surprised if the future holds something increasing the economic efficiency of nuclear (fission) power plants by that factor.

(Edit: Those numbers from the video are for the US. But 5 times more expensive is huge.)

[โ€“] [email protected] 0 points 10 months ago (1 children)

We don't choose to build it more expensive than it needs to be. It's by nature always going to be more expensive to build one of something instead of what the cost per unit is going to be when you make many.

Wind and solar isn't going to solve the issue untill we come up with a way to store energy on large scale. When you plug in an appliance that electricity is not taken from a reserve but it's produced for you in real time. Wind doesn't blow and sun doesn't shine according to how much electricity is needed at each moment. Finland produces all its electricity basically by hydro, wind and nuclear power. When it's windy we have excess electricity and the prices drops to negative and we got to sell it abroad but when it's calm the opposite is true. This wouldn't be the case if we could somehow store that excess energy.

[โ€“] [email protected] 4 points 10 months ago* (last edited 10 months ago)

cost per unit

We're talking about effective cost of the resulting power, altogether. All things included. (Except for nuclear waste, which is a topic for a different discussion and difficult to quantify.) Just comparing one aspect wouldn't be fair.

store energy on scale

Yeah, and science and investors are way ahead of politics. There are several concepts already available or already in place somewhere. Several promising ideas and projects that need funding. Storage facilities that aren't able to store energy because Bavaria is not willing to run cables across the country. It is a complex topic that also needs individual solutions. For example depending on geography you could have dams and pump water. Or one of the concepts that work everywhere. Infrastructure and cunsumer get more advanced/intelligent. You could charge your car automatically during periods where renewable is abundant. You can fine-tune factories, maybe have the large heat pump of an office building vary temperature a bit when there is a Dunkelflaute. Some countries just get geothermal power for free because of their location.... You can put those storage facilities close to energy generation or close to the consumer. And as supply and demand changes prices, it's also well aligned with the way our economy (and capitalism) works.

We should really hurry up and put in the effort this needs. Because we really need those storage facilities. And I'd like energy costs to come down again, and CO2 emissions also.

And if I remember correctly, the current natural gas power plants are the ones that can react to supply and demand the most quickly. But this seems not to be a good idea anymore, now that we have enough problems with the natural gas in central europe. I (personally) would be happy if there was an alternative.

I haven't heard any scientist in the last years tell something different from renewable plus storage is the way. Not unless some miracle happens and we get fusion reactors or something. But it's still unclear it that's going to happen.