Redditors are unbelievably brainwashed in this topic, and a lot of Redditors moved over to Lemmy. I have dragged this metaphor to water countless times before, and when I suggest that they could consider drinking, they just arrogantly declare that I don't understand the facts around liquids, that I don't have any basis for my claims that they should drink it, and that by arguing that people should drink more water, I somehow supporting Coca-Cola.

It's also common knowledge that the more often you build something, the lower its price tends to go as that knowledge spreads. It's part of the reason it's so expensive to build trains in the US and so cheap in South Korea and Spain.

You can have this copy/paste from like 5 minutes of googling. 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. This is extremely simple stuff, guys. I am basically saying, "lentils are cheaper than steak" and you're asking for citations.

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

Wow look isn't it crazy how nuclear is the most expensive one?

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. "

Also solar panel manufacturing is a very intense process with a lot of carbon impact

The carbon impact mostly is energy used in production. So it's high when you produce solar panels powered by shitty coal plants and basically non-existent when you have build them once and are constructing replacements with solar energy. (The same is true for nuclear btw and also often completely misrepresented in discussion. Nuclear plants in a country full of nuclear plants have a much lower carbon footprint. That's not some technological or scaling effect as often claimed but the simple fact of building the reactor and enriching the fuel with energy already green)

A 100% renewable grid would need a lot of batteries and that too could drive the price up

Actually no. The grid would need batteries (but also alternatives like capacitors or fly-wheels) for short-term stabilisation, but the amount is limited. The grid also need long-term storage but here batteries are completely inadequate. Also the requirements for batteries are usually misrepresented. No, we don't neen some bullshit Lithium-ion batteries or similar stuff requiring rare earths and other rare ressources. Those are used in handhelds where energy density is the main concern. I can perfectly build a stationary grid battery cheaply and without rare ressources as nobody cares if that building-sized installation is 5% bigger and 30% heavier than a build with lithium-ion batteries and also gets 20° hotter in operation... because it's not a handheld.

Case in point: One of the very first things that happened in Germany the moment the new government was sworn in and long before they could actually do anything: energy companies started installing the first battery-based storage units as they now were no longer intentionally sabotaged in creating storage infrastructure for renewables. What did they use? Car battereis. Used ones that were already deposed. Dirt cheap for costs barely above the recycling value. Because the requirements in grid stabilisation and short-term storage are indeed completely different that in cars (again: energy densitiy vs. low price and car batteries with only 60% of their capacity left were completely okay for that job).

…which is hugely worse for nuclear? What is your point?

Nuclear power plants require eye watering amounts of concrete.

They require continuous (and ever-increasing) extraction of fissile matter such as uranium ore (a limited resource, by the way - if we used nuclear power instead of fossil fuels we would run out pretty quickly, too, all things considered).

Nuclear power also consumes (and irradiates) vast quantities of water.

They are huge nightmares for biodiversity as they are massive projects usually flattening large swathes of land.

They produce waste which is not only irradiated and hazardous but also a major security risk, so it has to be safeguarded… and/or sealed into a hole in the ground where it will remain a risk for years to come.

The building projects themselves are astronomical in scale and require huge quantities of materials to be shipped by fleets and fleets of trucks followed by a lot of industrial work. Then in a couple of decades the site has to be decommissioned which is even more work.

Estimates for the lifetime emissions (extraction, commission, operation, etc.) CO2EQ of nuclear power are commonly thought to be between 60-100g per kWh. Solar power is somewhere in the region of 20-40g per kWh, and wind is somewhere around 10-20g per kWh.

So again, no, nuclear energy is not what we want. Support ONLY renewables. Nuclear power is wasteful.