- cross-posted to:
- memes@lemmy.ml
- cross-posted to:
- memes@lemmy.ml
Source - The colors of the grids represent CO2 emissions
The title is a reference to the 2021 Texas power crisis
Source - The colors of the grids represent CO2 emissions
The title is a reference to the 2021 Texas power crisis
That’s wrong, nuclear doesn’t equal zero CO2, not even close. There are no emissions from producing electric power, but tons of emissions building the plants and reactors, mining the fossils materials (which in large come from Russia, btw), transporting the materials, etc.
Granted, if you’re calculating that into renewables, there are emissions, too, but far less per kWh.
Also, nuclear’s fucking expensive.
And the “hurt themselves in confusion”-move wasn’t to shut down the NPPs (it was originally planned to phase out of coal and nuclear while building up renewables and using gas during the transition), it was to stall the phaseout of coal, expand on gas relying on Russia while halting the expansion of renewables and utterly destroying the PV industry. That’s what a conservative government does to you. Thanks, Merkel.
You are right, but in this specific chart, they don’t include things like building the facilities, mining the materials etc. They just use the CO2 released whilst producing power, which with nuclear is very low. You can click on the chart and zoom in on the data, it’s pretty cool.(This is wrong, see edit)The whole Germany situation is very complex and I was just jabbing, I live very close to Germany and work in Germany part of the time so I know something about it (but probably not everything). To me phasing out the nuclear wasn’t that much of an issue, but it could have been done way slower to make sure renewables filled the gap. Buying gas from Russia with the war in Ukraine is going on permanently hurt my soul.
Quickly phasing out nuclear is also a big middle finger to the countries in Europe that are looking to expand their nuclear power, but run up against long lead times. They would have gladly bought nuclear energy from Germany, which would mean way shorter lead times and prevent a lot of extra CO2 during construction of new facilities. Whilst building new big nuclear probably isn’t useful in combatting climate change, getting the most out of existing nuclear would have been.
The fuel coming from Russia isn’t as big of a deal to me, as there are plenty of sources around the world to buy from. With the amount of gas we’ve bought from the US recently, we could have easily bought some nuclear fuel as well. Now all these sources have their issues, I don’t like being beholden to the US and places like Niger or Namibia can have human rights issues.
Obviously nuclear isn’t the future and needs to be phased out, but in my mind this meant decades yet and not the rushed phasing out Germany did.
Edit: Just checked the source, they actually do include things like mining of the fuel, construction of the facilities, transport of the fuel etc. into the CO2 calculation. Nuclear just blows everything out of the water in terms of CO2. Only renewables come close, but in terms of CO2 nuclear is the best.
Yes, the map sources try to include the CO2 emissions of all the chain.
When doing that you see that nuclear still has very low emissions. Nuclear is a lot of CO2 emissions for construction but after that there is not much. The fact that most of the French nuclear reactor are almost 40 years old means that the impact of construction is already diluted.
Uranium mining is polluting, yes, but you need so little that it does not really have a big impact on the CO2/kWh ratio. 1kg of natural uranium produce as much energy as 14,000kg of coal !
What is interesting on this map is that right now the green countries either have a lot of nuclear, a lot of hydroelectricity or both. Country with a lot of wind and solar struggle to meaningfully lower their CO2 emissions. I think it will come but right now the backup power used for when solar and wind production are low is often polluting and counterbalance the low emissions of renewable energy.
Spain has lots of solar and wind and is fairly green.
The yearly average for Spain in 2023 is 160g CO2/kWh (yellow).
25% of their electricity was produced with wind, 22% nuclear, 16% solar and 10% hydro. And also 22% of gas that brought their CO2 up.
I think you mean mining fissile materials. Nuclear is not in the same category of emissions as fossil fuels that burn carbon directly…
Yes, I mean fissile. Damn autocorrect.
That’s technically true, but more a consequence of fossil fuel infrastructure peripheral to the power plant itself. Switch your rail network to full electric and use more electricity in your steel manufacturing (already the predominant modern foundry production technique), you’ll solve a big chunk of this problem.
After that you’re talking about CO2 produced by setting concrete to build the plant, and that’s functionally a push relative to any other power plant that also uses concrete (basically all of them, concrete is popular for a reason). You’re also moving well below the carbon emissions targets we need to hit by 2050, so its an efficient move.
German domestic firms were making huge margins on Russian gas imports right up until the Ukraine War broke out. That’s a big problem with fossil fuels. They’re still incredibly cheap to mine, with a lot of the cost coming via markups in the retail sector. There’s also a huge incentive to simply import PVs from countries with dirt cheap labor costs. So… mostly China with a bit of Canada thrown in there. Germans, like the Americans before them, no longer want to invest in industrial capital because it has a shit ROI. They want to invest in the FIRE and Tech Sectors, because they’ve got crazy high returns.
So more and more industrial capital keeps getting dismantled, with imports filling the gap. And nobody really seems to care about what this does to domestic security or capacity in the event of supply chain disruptions, because that’s Future Peoples problem and we’re making so much money right now.
https://www.researchgate.net/figure/Carbon-footprints-of-various-energy-sources-based-on-32-for-all-energy-sources-other_fig1_308114828
https://ourworldindata.org/land-use-per-energy-source
When accounting for construction, lifetime production, decommission and disposal per mwh produced for all energy sources, nuclear still takes the lead. And it further pulls ahead when you compared land useage per mwh produced per square meter. The only place where Nuclear doesn’t have a cutting edge advantage is cost per kwh, and frankly if you’re putting profits over sustainability then welcome to being part of the problem that lead to us burning coal cause it was cheap.
The best possible solution for a sustainable future is baseline nuclear power to cover average usage of loads, rooftop solar on existing buildings to make use of surface area not otherwise being used for something useful, and wind turbines added to areas where wind production is viable without displacing other production needs, such as adding it to agriculture fields or low impact areas. This ideal circumstance would also have people abandoning low density housing (specifically suburban single family homes) to move to more high density housing (apartments or multiplex homes that host multiple families) to allow additional land to be set aside for ecological restoration to better balance and preserve what climate we still have and enhance carbon capture. This is obviously a goldilocks solution that will never happen because humans will be humans, but that doesn’t mean we shouldn’t be encouraging it and taking steps to emulate it as realistically as possible.
This is incredibly naive. We have a limited amount of money for the energy transition (because otherwise the problem would already be solved), and the more efficiently you spend that money, the faster we stop pumping greenhouse gases into the air.
Nuclear is by far the most expensive form of energy. If it takes you 30 years instead of 10 to replace all other forms of energy production, you haven’t won anything.
If Nuclear was 50%-100% more expensive you might have a point.
But it’s not. It’s barely more than 10-20% on the most pessimistic charts over lifetime. Civilization can afford nuclear and can’t afford to ignore it. And Nuclear price tag only goes down as it benefits from economy of scale, the only thing really hindering it. It doesn’t take 30 years to build a reactor, it takes 5-10 depending on bureaucracy people using protest or legal measure to delay it. The time it takes to build a 1,000mW reactor is roughly the same amount of time it’s going to build 1,000mW of Wind or Solar production anyways. So to get back to the point: What exactly is yours?
Nuclear is literally 3-4 times as expensive: https://en.wikipedia.org/wiki/Levelized_cost_of_electricity
The levelized cost of electricity is exactly the metric you were talking about, over the whole lifetime of the power plant. Nuclear costs are also increasing, not decreasing as you claimed. Building reactors also takes way longer - you can deploy solar and wind in a couple of months to years, whereas all existing nuclear reactors took at least 10-20 years to build. While you’re continuously building up renewable capacity , it already starts producing energy, whereas a nuclear reactor will only start producing once it’s fully built, meaning that it simply doesn’t help us reduce carbon emissions until then, whereas renewables can. How can you be so wrong on a topic you talk so confidently about?
The propaganda of the nuclear industry is truly incredible.
IEA refutes the LCOE figures and gives significantly lower values. And many other experts in the field criticize LCOE as being overly simplistic in ignoring several factors, such as disregarding inflation entirely (over 80% of a NPP’s LCOE), giving hilariously optimistic lifespans for renewables (30+ year turbines and solar, most are lucky to still produce power after 20 without serious upkeep) and assuming 100% load conditions throughout the year, something only Nuclear and potentially hydro can hope to achieve, every other form of energy generation having significantly less and more variable output. When you actually account for these factors, lifetime nuclear cost is not 3-4 times greater, especially when you factor in construction and decomission and disposal pricing that always gets packed in with nuclear but somehow never even considered for other types.
As for 30 year construction time? Cite your source, because the global median is 7.5 years. 5.5 years if you remove outliers such Watts Bar which was literally halted for almost a decade due to other difficulties. Most reactors are finished quicker than this. Japan meanwhile is going from breaking ground to connecting to the grid in just about 4 years. It takes a couples months to put up a turbine, but how long do you think it takes to put up 300 turbines? I live in area surrounded by wind turbines, and I’ll tell you they aren’t putting up 300 in under a year. The park I leave near has slightly over 200 and that took over 10 years to complete despite constant construction crews working to erect them.
https://www.statista.com/statistics/712841/median-construction-time-for-reactors-since-1981/
https://radiyozh.substack.com/p/how-long-does-it-take-to-build-a-nuclear-reactor-c2a0c6b29116
https://i.imgur.com/KvnkXe6.jpeg
It’s the anti nuclear thats astounding, the figures you’re presenting are a best misleading when sourced to outright fabrications and lies.
Why don’t you share your sources for 10-20% increased costs then? Let me see what you’re working with.
I didn’t claim 30 years of construction time, what are you talking about? You’ll also surely know that you can’t just randomly start building a nuclear reactor anywhere - there’s a lot of steps beforehand you have to take care of (if you don’t want to damage the local ecosystem). These steps take way longer for nuclear than for renewables, pushing your 7.5 years to double or even more. This, in combination with the increased cost as well as the long time until power production starts, makes it a non-starter to solve the climate crisis.
I can see how you might think that when you’re inventing things I’ve said.
https://lemmy.world/comment/11278397 you can’t even keep your story straight in the same comment chain.
Can you… can you literally not read? That comment doesn’t say anything about nuclear reactors taking 30 years to build. Or do you think a single nuclear reactor is enough to replace all fossil fuels? I wasn’t talking about a single nuclear reactor in that comment.
I don’t know how to better explain it to you. Re-read the comment a couple of times, maybe you’ll notice?
they absolutely should be decreasing, the problem is that gen 4 plants don’t exist yet, if they did it would be substantially lower.
Also this isn’t propaganda, you’re pulling this out of your ass, the nuclear industry is fucking DEAD homie.
Well, if reality disagrees with you, it’s usually not reality that’s wrong. You can say that prices should have been decreasing, but I can show you that prices did not decrease, they increased, whereas prices for renewables have been decreasing.
Also, nuclear energy is the dream of the current fossil fuel industry - it’s centralized (no individuals can produce their own energy), it’s heavily subsidized (otherwise it would be way too expensive), and negative effects are socialized (cleanup is oftentimes not fully covered by the operator, and they also won’t be held accountable in the case of accidents). They are terrified of renewables, as they’d lose control and gain more competition.
and housing prices are fucking insane, it doesnt mean that building houses is expensive.
Prices should have been decreasing, like they should have been with housing. But due to a lack of funding and manufacturing, modern nuclear power plants have very little R&D investment, and the entire labor pool surrounding nuclear plant fabrication doesn’t really exist anymore.
The primary reason for the prices of renewables falling is more than likely china and chinese subsidies gunning for a market dominance, followed by technological advancement, Unfortunately these advances don’t solve the problem of solar panels needing silicon, and batteries being expensive, and wind turbines being a maintenance nightmare, as well as a disposal nightmare (most wind turbine blades are made out of fiber glass, good luck have fun)
It’s not the dream of the fossil fuel industry, if it were, it would be a successful technology that was actively in use, because the only thing fossil fuel companies care about is making money. Why do you think they wouldn’t do nuclear if it was feasible? The answer is that it isn’t in comparison to fossil fuels like oil and coal. And that’s it.
Yes the grid is centralized. What next, going to the grocery store is centralized? Wait until you figure out what walmart did.
Exactly. This means that pumping money into this sector is ineffective if the goal is to combat climate change - the optimal build times will most likely not be met for any of the initial reactors that could be built, which pushes the first day of power generation back further and further. Renewables start to give some power immediately while you’re building up more and more capacities.
Given the technological advancements and the current prices, it’s a good idea to start investing massively. If this should affect pricing negatively instead of positively (it was the latter before), investments could ensure local production. Every country will want access to silicon anyway for chip production, so this is not a new problem, just a difference of scale.
The price of batteries keeps falling and falling. Recently, the price of renewables + grid-scale storage has fallen below the equivalent price of nuclear energy. Given the current pricing trends, investing in nuclear means hoping that the trend reverses. With renewables and grid-scale storage, you’re simply betting on the same trends of the last decade continuing.
Just like with nuclear energy, these are problems of investments and scale. Because of the supply of used turbine blades increasing, there has been a lot of development and investment into recycling them, and the situation has already improved a lot. You’re, again, hoping that the same will happen for nuclear energy on a short-enough timescale.
And that somehow means it should stay centralized? A decentralized grid has a bunch of advantages: lower costs for the individual participants, higher resilience during catastrophes, lower impact of maintenance/disruptions/attacks, and a much shorter time to first production.