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For additional context, one of the reason for the delay and cost increase was the absurdly complex design due to French and German companies trying to collaborate on a new design as Germany was turning anti-nuclear, which culminated with Germany deciding to stop nuclear energy after the Fukushima Daiichi event.
Another big reason is the knowledge loss due to almost one generation without any reactor built in between.
Now do Georgia's Vogtle reactors 3 and 4, which came in at 34 billion for 2 x 1200mw plants, 21 billion over the original 14 billion estimate, and took over 14 years to build, 8 years behind schedule.
Im glad these powerplants finally got built. They will help, but nuclear is just not reasonable anymore. Its a slow, expensive tech, especially when we are making such leaps and bonds with solar/battery.
Even if wind and solar make huge progress, they will likely never be as efficient regarding raw materials efficiency and land use. Land use is the main contributor to biodiversity loss.
I don't think peremptory opinions about technologies are going to help. We should use what ever technology is the most reasonable and sustainable for each specific location.
Total land used for all power to be supplied by solar would be a hilariously tiny percentage of land, so this just reads like a solar version of "its killing birds" to me.
Agrivoltaics also side steps this non issue, as interlacing solar panels into farm land increases yields for many crops while making efficent use of space that's already spoiled any biodiversity. Can you do that with a nuclear reactor?
Nuclear could take over existing coal plants which would allow use of otherwise unusable land that's been polluted by coal. It would require regulatory changes though, as the coal plant is already irradiated beyond allowed levels for nuclear.
Yeah in a perfect world based on some rough data you could supply the entire planet’s energy requirements with a solar plant about 300,000 square kilometers, or basically the size of Arizona, which translates to about 0.2% of the total landmass on earth. That being said, I’m curious what a solar plant the cost of this nuclear plant would look like, and where they’d put it. I think centralized vs distributed land rights and compensation is really tougher than the tech at this point.
Nevada just built a hybrid 1400MW solar/battery plant for 2 billion dollars in 2 years.
That 1400MW is solar panel + battery output, so it doesnt match nuclear's steady state, but ive done the math on these projects before. We should be able to can build a 3000MW solar generating plant with 1200MW battery supply for 16hrs at roughly a cost of 17 Billion dollars, or 1 Vogtle nuclear plant. My time estimate was 6 years. This would output 2x the power of the Vogtle plant during the day, and output just as much as it over the night.
The above makes solar/battery not only way more productive than nuclear, but way safer, and way faster to built. All of that is just with demonstrated, everyday tech available today. It ignores all the huge advances being made in various batteries and panels. In the decade+ that it would take to open just one more reactor, we will likely be able to 2x-3x the power and speed to build at a lower cost with just solar/battery.
Nuclear was the right answer for the last 50 years. That's no longer the case.
wtf? Decentralized production is one of solar's greatest advantages.
There is no particular reason solar "needs" to use any new land at all, given that we can just put it on the roofs we already have.
And the fact that we do dedicate land to it instead of only doing rooftop just goes to show that land use isn't anywhere near as important a problem as you insinuate.
Your comment is pure FUD.
You are very quick to deduct things. The reason land is dedicated to it is that it is not easy to organize with building owners to get it on the roof, compared to buying land building what you want on it, and equipping roofs is obviously more technical than building on the ground. We can't just think it terms on what could be possible but what the reality is.
Countries who try to stop land artificialization to reduce impact on biodiversity struggle to, because of all the economical pressure where renewables may contribute, it's not an easy subject.
Please try not to look for negative intentions, I am here to participate in the debate and learn with others.
Something to note about this chart is that ground-mount silicon solar PV isn't considered for sharing land use with activities such as farming in comparison to how onshore wind is (i.e. agrivoltaics).
NREL in the US estimates that there are currently ~10.1 GW of agrivoltaics projects spread across ~62,400 acres (or ~7 m^2 / MW).
Even this being said, I think brownfield or existing structures for new PV is the way of the future for solar PV. There is so much real estate that could be used and has the potential to offset grid demand growth while providing greater reliability for consumers. You'll need the big players to help with industrial loads, but even then, the growth of Virtual Power Plants (VPPs) has the potential to balance loads at the same scale as the big players for the prosumer market.
Edit: I'll also make mention of floatovoltaics, or the installation of solar PV on bodies of water, either natural or artificial. This is a burgeoning side of the industry, but this is another area that could present net zero or even negative land use per unit of energy.
Don't forget solar fences
Something to note about your link to solar fences is that one of the cons mentioned is that panels can't produce power for half of the day because they'll be facing away from the sun.
Bifacial panels exist and can collect energy from both faces of the module. We in the utility-scale space use these all the time. You'd want these over monofacial panels for fence applications
This is a poor argument. You just did what you explicitly should not do with Life Cycle Assessment (LCA) results.
The ISO 14044 specifically requires life cycle assessment to include all relevant impact categories. In particular in comparative analysis it is crucial to not single out any one category, but look at the impact on the endpoints, e.g. ecosystems or human health.
https://www.h2.de/fileadmin/user_upload/Einrichtungen/Hochschulbibliothek/Downloaddateien/DIN_EN_ISO_14044.pdf
See page 37 onwards.
Here is the full LCA study, that you drew only one category from
https://unece.org/sites/default/files/2022-04/LCA_3_FINAL%20March%202022.pdf
Look at the Endpoint indicators, like "Lifecycle impact on ecosystems, per MWh, in pointes", "Life cycle impacts on ecosystems, no climate change,per MWh, in pointes", "Life cycle impacts on human health,per MWh, in pointes" etc.
Nuclear power does fare well in these categories, but often only marginally different to Wind Power and Solar Power. It certainly does not offset the cost difference, when you also have to include the opportunity costs of running coal or gas plants longer.
It's slow expensive tech because we don't invest in it.
Every technology is slow and expensive when you have nearly an entire generational gap in knowledge and experience.
You'll know that I'm not saying solar and wind are not cheaper, they all exist in a different capacity and fill in the gaps they best fit.
We have invested decades and billions into reactor tech. The DOE just announced another 900 million for SMR, on top of previous billion dollar grants. So far, every SMR company has failed to make any progress. The DOE even certified one for use and it still can't get it done.
Meanwhile, solar/battery research is getting funding from tons of sources, government and corporate, and exploding forward in every direction. Solar arrays are being deployed all over the world at insane rates, propelled mostly by just how inexpensive, safe, effective and easy it is to deploy. Its because of solar/battery that we may even hit some of the 2030 "pie in the sky" climates goals that were set across the world.
Its pretty clear which of the two techs we should be spending time on.
Nuclear reactors have always been subsidized by the military. Solar and wind are so much cheaper than anything that came before.
Hey, you don't know where the next tsunami will happen. Have to be proactive.
The real irony being that all Japanese reactors shut down due to the quake as designed, and the tsunami wouldn't have been a factor had money not been saved by shortcutting backup generator protection from flooding in a FLOOD ZONE.
Bro, THE FUCKING BACKUP DIESEL GENERATORS FOR THE PLANT WERE BELOW SEA LEVEL.
Make it make sense. If those generators had been above sea level, well probably above 100-year tsunami levels, we likely would not have seen the plant catastrophically fail.
That was part of the problem. Built where it was cheaper, ignoring literal ancient markers saying not to live there because of the past. But they would have still not failed, had they been designed for the potential of being submerged. Again, they were not because that would cost more for a long range risk. It all falls into bad planning and profit, not in any way because it was a nuclear plant.
bad planning and profit are of course words never uttered in connection with German infrastructure projects.
This just serves as a lesson to the "failsafe technology" crowd: That also involves failsafe humans. Those, to the best of my knowledge, have yet to be invented.
Oh and relatedly some German reactor ran for decades without a backup power generator. It was there, present, physically, that is, but noone bothered to check whether it actually worked. Merkel justified her flip-flop on the nuclear exit (shortly before Fukushima, she delayed the exit that SPD+Greens had decided on) by saying, more or less, "If the Japanese can't do it we can't do it either" but if she had been paying attention, it should've been clear that we couldn't do it. That became clear when the first SPD+Green coalition moved responisibity for nuclear safety from the ministry for economy to that for the environment, run by a Green, and they made a breakfast out of all that shoddy work that the operators had done. Oh the containment vessel is riveted... figures they put the rivets in the wrong way. Shut it down, have fun re-doing every single one of them before starting it up again.
Thus, my conclusion: The only people you can trust to run nuclear reactors safely are people who don't want nuclear reactors to exist in the first place.
It's always Germany's fault when it comes to nuclear, isn't it?