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submitted 1 year ago* (last edited 1 year ago) by lntl@lemmy.ml to c/worldnews@lemmy.ml

Growth in german wind capacity is slowing. Soo... then the plan is to keep on with lignite and gas? Am I missing something?

Installed Wind Capacty - Germany

German Wind Capacity

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[-] Blake@feddit.uk 44 points 1 year ago

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 responsive to changes in energy demands

Why would anyone waste money on the worse option? An analogy: you need lunch and you can choose between a nutritious and tasty $5 sandwich from an independent deli or a $10 expensive mass-produced sandwich from a chain. The independent deli is tastier, cheaper, more filling, and healthier, and it’s easier for you to get since it’s on your way to work. Why would you ever get the $10 sandwich?

According to you, I'm an idiot, and yet no one has debunked a single one of my arguments. No one has even tried to, they immediately crumple like a tissue as soon as they're asked directly to disprove the FACT that nuclear is more expensive, slower to provision and more environmentally damaging than renewables. If I'm so stupid it should be pretty easy to correct my errors?

Either that or you can loftily declare yourself above this argument, state that I am somehow moving the goalposts, say that “there’s no point, I’ll never change your mind” or just somehow express some amount of increduiity at my absolutely abhorrent behaviour by asking you such a straightforward question? You may also choose “that’s not the question I want to talk about, we should answer MY questions instead!”

[-] tex@czech-lemmy.eu 18 points 1 year ago

Tell me how much energy it provides during night and during winter. Thats's why. Coal plant produces more radioactive waste than nuclear power plant. And that feared CO2 too.

[-] EtzBetz@feddit.de 6 points 1 year ago* (last edited 1 year ago)

We need to change how power distribution works. That's just the point. There are easy ways to store power that's generated by day. And since we don't just focus on one single renewable energy source, it's not even half as bad as you're drawing the picture here.

Edit: since this is my only comment in here, I also want to point out that the chart is rising last year, I think/hope that it will continue rising. (Until CDU steps in again because people think "Hey there last years were so terrible, everything got more pricy and so on, that's definitely on SPD, green, FDP, not just a random situation in the Ukraine" and vote for them..)

[-] Ooops@kbin.social 3 points 1 year ago* (last edited 1 year ago)

Coal plant produces more radioactive waste than nuclear power plant.

Tell me you are totally brain-washed without telling me you are totally brain-washed.

The correct take: Coal plants without any environmental requirements 50-60 years ago release more radiation into the area in the form of fly ash (containing natural amounts of radiation like all earth around you) than the radiation escaping from a modern nuclear power plant through it's massive concrete hull.

Or in other worlds: If nothing goes wrong and we completely ignore the actual radioactive waste produced (of which a coal plant obviously produces zero) then the radiation levels in the area around the plant are miniscule and it's really safe. So safe indeed that just the redistribtion of natural radiation via ash when coal is burned has a slightly stronger effect.

That's it. That's the actual gist of the study that is from the 1970s (referencing even older data).

Just the fact that this fairy tale about coal power producing radioactive waste based on some (already then criticised and flawed) old study is still going around shows how lobbyists have damaged your brains.

[-] Iceblade02@lemdit.com 14 points 1 year ago

The criticism is extraordinarily simple and justified.

Which is better, Renewables and Nuclear or Renewables and Fossil Fuels?

Germany could have had an almost entirely fossil free grid by now, but instead they chose renewables & fossil fuels.

[-] Blake@feddit.uk 3 points 1 year ago

Please provide a source for your claim that 100% renewable energy is not possible.

Actually you can save yourself the time, because here’s two sources which show it is possible.

https://www.sciencedirect.com/science/article/pii/S0306261920316639?via%3Dihub

https://link.springer.com/book/10.1007/978-3-030-05843-2

[-] Ooops@kbin.social 2 points 1 year ago

Or (as this is in the context of Germany) one of the studies even modeling different acceptance levels of renewable energy in the transitioning until 2050:

https://www.ise.fraunhofer.de/en/publications/studies/paths-to-a-climate-neutral-energy-system.html

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[-] lntl@lemmy.ml 13 points 1 year ago* (last edited 1 year ago)

Silverseren: Germany made a foolish choice shutting down their nukes

Blake: Renewables are a deli sandwich

The room: ...?

[-] Blake@feddit.uk 17 points 1 year ago

Sorry if the analogy was too hard for you. Feel free to ignore it and address the remaining 90% of the comment which was not an analogy.

[-] lntl@lemmy.ml 9 points 1 year ago

Why would I do that? You've made it clear that you don't read people's comments. Instead of reading and responding, you copy paste from thead to thread the same disjointed bullet points.

[-] Blake@feddit.uk 12 points 1 year ago

I have read absolutely every single word you have written and responded to them in kind. After your last comment, I went back over the thread from beginning to end and my conversation with you was lucid and coherent the entire way through.

I do appreciate the attempt at gaslighting, though. It’s a good feeling knowing that I’m having such a strong impact that you’re willing to try and psychologically manipulate someone.

Anyways, look, drop me a line, if you’ll send some of that sweet sweet nuclear lobby money my way I’m sure it would be a very worthwhile investment for your company or think tank or what-not. I have reasonable rates and give good results!

[-] derGottesknecht@feddit.de 3 points 1 year ago

Are you hallucinating? What part of your comments do you think was ignored?

Because it certainly seems like you got your ass handed to you in this thread by someone who had the knowledge and could back it up with sources.

And your general framing of the issue, ommitance of the stong uptick in new renewables after the new government took power pisses me off as a german.

[-] lntl@lemmy.ml 2 points 1 year ago

I'm taking about another thread in this post.

[-] Rooty@lemmy.world 8 points 1 year ago* (last edited 1 year ago)

You forgot:

  • Not able to provide energy during the night/calm days
  • Not energy dense - require enormous amount of land that can be put to better use
  • Rely on battery storage - huge fire and explosion hazard
  • Need to be replaced and serviced much more often - the lack of density means that repair and maintenance crew have a lot of ground to cover
  • Energy output wildly fluctuates due to weather conditions.

Renewables have their place, but they cannot sustain the entire grid. At this point, going all in on renewables means either prolonging fossil fuel usage, or condemning vast swaths of the population to brownouts and energy poverty.

[-] Blake@feddit.uk 5 points 1 year ago

Look at all of these wrong arguments. It’s so thoughtful of you to bring them all together like this.

  1. It’s always day somewhere. Also there’s still wind, wave, geothermal, hydroelectric, etc. not to mention interconnectors. Additionally, energy demand during the night is very low. Peak energy usage is at the same time as peak solar generation. The idea is that if you spread renewables across a large enough area, natural shortages of wind/sun in one area is compensated for the wind/sun being in another area.
  2. It’s true that it isn’t energy dense, but it’s definitely not true that it can be “put to better use”. 5% of the US is covered in parking spaces, enough to provide 8 spaces for every car. If 10% of that land was allocated to solar power it would be enough to meet the electricity demand of the entire United States.
  3. Doesn’t rely on energy storage. Just build interconnectors. Electrical energy can be moved from where it is greatest in supply to where it is greatest in demand. Additionally, electrochemical batteries aren’t the only choice, there are countless ways to store electrical energy - pumped storage, thermal storage, etc.
  4. This is outright wrong. Source your claim that nuclear is easier and cheaper to maintain than renewables. I’ll wait.
  5. This is the same as your first point. See 1.

You’re wrong. There are numerous studies which say a 100% renewable future is entirely possible with current technology. Since you’re incapable of googling this basic fact here’s a link for you. https://en.m.wikipedia.org/wiki/100%25_renewable_energy

[-] Rooty@lemmy.world 6 points 1 year ago
  1. Power lines are not superconductive, there are always losses when electricity is moved long distance
  2. You sidestepped my point and went on a tangent
  3. Again, there are losses when electric energy is converted into other types - pumped storage requires large reservoirs, and you're basically making ineffective hydro.
  4. I never stated that renewables are easier to maintain than nuclear, just that the monetary and enviromental cost of maintenance is swept under the rug by anti-nuclear zealots.
  5. Again, renewables have a reliabilty problem that cannot be handwaved by "just move the power somewhere else.

Judging by your sneering tone, I doubt you're going to be receptive to any further points.

[-] Blake@feddit.uk 4 points 1 year ago
  1. Sure, but it’s so much cheaper than nuclear, that it’s nearly irrelevant. A typical loss for 800 kV lines is 2.6% over 800 km. That means it’s cheaper to generate renewable energy 16,000km away from the point of consumption. That’s almost half the circumference of the Earth.
  2. You claimed that renewables would take up too much space. I provided an explanation backed up by facts and figures which clearly demonstrate that claim was false. You clearly can’t refute my point or you would have done so.
  3. Again, yes, but again, it’s so much cheaper that it doesn’t matter. Even with a conservative estimate, pumped storage is 70% efficient. In reality, it’s closer to 80%. This means that it’s still much cheaper to generate electricity and store it with pumped storage than it is to directly produce electricity with nuclear sources. 99% of the world’s electrical storage is pumped storage. Do you think you know better than industry experts?
  4. Good, I’m glad you’re willing to walk back this argument. The fact of the matter is that renewables are the cleanest, cheapest, safest source of energy available to us, and so that is what we should be investing in. That’s all that matters. Everything else is propaganda and rhetoric.
  5. No, they don’t. Again, this is just the same argument as argument 1. There’s no point in arguing it twice. People need to eat food, we produce food all over the world. People need to power their homes? We should produce power all over the world. It’s not a hard concept.
[-] Zuberi@lemmy.dbzer0.com 2 points 1 year ago

You didn't provide any sources.

If you're trying to wave your dick around you better provide more sources than Blake did above. Moving electricity long distances isn't really losing much anyway.

[-] vodnik@lemmy.world 2 points 1 year ago

It’s always day somewhere

Pretty obvious you have no idea what you are talking about. You can't transfer power from the other side of the planet.

[-] Blake@feddit.uk 2 points 1 year ago* (last edited 1 year ago)

Nice, ignoring 99% of my comment to attack a strawman. The sun covers half the globe at any one time. I’m not suggesting that somewhere in midnight takes solar power from somewhere in midday. For example power can be moved across the US grid, which covers three timezones, which gives solar 3 hours more viability.

[-] PhantomPhanatic@lemmy.world 3 points 1 year ago

Not a strawman when you respond to "sometimes it's night and solar doesn't work" with "it's daytime somewhere". The natural assumption is that your intention was that day side power could be used on the night side.

Do you have anything to back up your idea that the US grid can or does actually supply power across the entire nation?

[-] Blake@feddit.uk 1 points 1 year ago

Your assumption is mostly correct - “day side power can be used on the night side”. Say that you live in a city where the sun sets at 7pm. The largest synchronous power grid in the world is in Continental Europe - from east to west, it’s approximately 5600 km, and connects Portugal (UTC 0) all the way to Turkey (UTC +3), covering three time zones. That means when the sun sets in Portugal, solar panels in Turkey are still generating power at 75% efficiency.

As you can understand, this is an entirely different claim from “we would get power from the other side of the world”. It’s a strawman because that’s the weakest possible version of the argument I made.

As for the US power grid, no, you’re right, I was totally wrong about that. I had thought that the east and west power grids were connected, but it seems that they still haven’t sorted that out yet. Thanks for correcting me. It looks like they have a project in the planning stage to make it happen (Tres Amigas SuperStation) but it probably won’t be for a while. It’s absolutely achievable, though, and pretty easily.

It would also be achievable to get a single planetary power grid, theoretically, but I think it’s practically impossible to achieve that at the moment. It would need a level of global cooperation far beyond what we have ever accomplished. Definitely a future goal for our species!

[-] PhantomPhanatic@lemmy.world 2 points 1 year ago

Transmission losses prevent most of what you are suggesting. Across a continent, even with high voltage low loss power lines, you lose 35% to resistance. This doesn't count the added loss from stepping down the voltage at various substations and transformers along the way. You can expect another 8-15% more reduction from that.

You're suggesting that the amount of excess power from one side of the country could be enough to power the other side (while still meeting the demands locally) with 40-55% losses. Come on.

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[-] hh93@lemm.ee 2 points 1 year ago

For #2 to add: you can just install them over a parking lot, too

Makes people happy that their car isn't exposed to the sun/rain anymore and not removing anything from NIMBYs that fear for their car-privileges

[-] theherk@lemmy.world 7 points 1 year ago* (last edited 1 year ago)

How are renewables more responsive to changes in demand? I don’t know how to make the sun shine brighter or the wind blow harder. That seems like one of the weakest points for the case. And how much much safer are they as a function of unit of power generated?

In any case the argument between renewables or nuclear baffles me. Both are, in my view at least, an improvement over our current primary fossil fuel power generation systems.

Edit: I mistyped fossil as fissile, which while funny undercut my sentiment.

[-] Blake@feddit.uk 2 points 1 year ago

By angling the wind turbine blades, rotating the turbines, pitching the rotors, using breaks, gearboxes, etc.

It doesn’t really matter how weak this point is, to be honest. It’s just a bonus. The ultimate trifecta of “renewables are cheaper, better for the environment and faster to build” mean that renewables always win.

They’re both an improvement over fossil fuels, sure, but one is clearly the superior choice and resources are limited. It’s very important that we push for the right choices to be made to reduce the impact of climate change as quickly and effectively as possible. It’s literally one of the most important issues facing our species.

Every $1 spent on nuclear power is basically stolen from renewables. $1 spent on renewables generates 150%-200% more power than nuclear and it does it safer and cheaper. Why invest in nuclear at all.

[-] theherk@lemmy.world 3 points 1 year ago* (last edited 1 year ago)

Well I suppose there is a lot to unpack there but I want to hold to the one point. Renewables are absolutely in no way more responsive to demand. I’m not sure where you got that, but it seems clear you don’t even want to defend it when challenged.

It is in fact their Achilles heel, and regularly pointed out as the one reason why they are an incomplete solution requiring other solutions like batteries, or other storage and distribution.

Simply pitching blades cannot increase power in accordance with demand spikes. One would expect the current brake, blade pitch, and other controls to be set for current maximum generation capability given the current wind.

[-] Blake@feddit.uk 2 points 1 year ago

It’s easy to turn off wind turbines. It’s much harder to turn off nuclear reactors. That’s what responsive to demand means.

[-] theherk@lemmy.world 4 points 1 year ago* (last edited 1 year ago)

Without disputing any of your other points, you're just dead wrong about this one. Look up dispatchability. Turbine driven power can go from zero to full multimegawatt power and back in very little time since we control the fuel. You cannot turn up the wind, nor the sun at night.

Nuclear power can be shut down very quickly, even more quickly in gen4. You have good points and you need not disrupt them by claiming renewables are good for demand response.

To clarify, I mean steam turbines but the same is true of wind turbines. Like you said, easy to disconnect them from generation. The difference is maximum power is limited by fuel rather than nature.

[-] Blake@feddit.uk 2 points 1 year ago

Again, I am talking about NUCLEAR VS. RENEWABLES. If you bring up fossil fuels once more I will just block you.

Nuclear power can be shut down very quickly

Provide a source of a nuclear power plant in operation which is capable of going from 100% to 0% in seconds.

[-] tooLikeTheNope@lemmy.ml 6 points 1 year ago

Decentralised

I was rummaging this is probably the main reason for which they are pushed back in an excessively popular narrative in favour of nuclear: of course it is way harder to exercise capitalism when you can't centralize power and control, with renewables instead it could probably only exist a form of cooperative enterprise with the business of managing the energy production, immagine the loath of some individuals even acknowledging some utterly leftist term such as "cooperative" even exists, let alone even works. Better.

[-] PhantomPhanatic@lemmy.world 2 points 1 year ago

Why would anyone waste money on the worse option?

Why do people have diverse stock portfolios?

Hedging and diversification is important. Unforseen consequences and unknown future conditions can screw up your long term plans for 100% renewables. The more diverse our energy portfolio is, the unknowns become easier to weather.

That is the answer for why we build and research something that is more expensive and may divert resources away from better options. To argue that there is literally no place for energy development other than purely renewable is a difficult position to defend.

Your sandwich analogy is lacking because we're talking about far future consequences of our decision. Maybe you plan to eat the sandwich a week from today. Which do you buy? You don't have enough information to determine which will be better in a week. Do you pick the chain store's because it's full of preservatives? Do you decide to buy both in case one of them gets moldy just to make sure you have anything to eat?

The consequences of developing or not developing potential viable solutions to energy requirements can be far reaching. Completely dismissing alternative options is just not rational.

[-] Blake@feddit.uk 1 points 1 year ago

I support continued research and development into nuclear power, but I oppose the construction of nuclear power plants for reasons beyond scientific research. My very first comment in my thread said as much. Perhaps you should read more closely?

I agree that diversification is important. Luckily, when it comes to renewables, we have an absolute feast of options:

  • Solar photovoltaic (generating electricity directly)
  • Solar thermal (heating water)
  • Wind, onshore
  • Wind, offshore
  • Geothermal
  • Hydroelectic (dams, rivers, etc.)
  • Wave
  • Biomass & biofuel
  • Artificial photosynthesis
  • Infrared thermals
  • Water vapor hydrostatic charge

You say that we should consider the long term implications of our decisions, and I wholeheartedly agree with you. That is another reason to favour renewable sources. The sun is the only thing we can be 100% sure that will always be there for humanity. If it’s gone, then so are we. Likewise for the wind - it’s guaranteed as long as the sun shines and that physics continues to work as expected.

Meanwhile, nuclear fissile material is a limited resource with extremely complex supply chains involved, with huge disruptions potential at any point in the extraction, refinement, handling, shipping, use and disposal of the material. Not to mention all of the things that can go wrong with a nuclear power plant - mistakes in maintenance or operation can leave it inoperable in a way which is extremely expensive and complex to fix.

Solar panels and wind turbines are so easy to install, maintain and repair that you could do it safely by having a high school level understanding of electronics and following a 20-minute YouTube tutorial.

A thought experiment for you: Can you describe a scenario where either solar power or wind power are no longer viable sources of electrical supply, without a mass extinction event also occurring?

[-] PhantomPhanatic@lemmy.world 2 points 1 year ago

Why would we limit our hedging to non-world destroying scenarios? It seems we're already on track for a mass extinction event anyway. The reason you hedge is exactly for the worst case.

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[-] Zuberi@lemmy.dbzer0.com 2 points 1 year ago

Can I follow a particular user? I just want Blake energy in my life.

[-] Blake@feddit.uk 3 points 1 year ago

Hahah, that’s sweet of you to say, thanks - I’m not usually so self-assured, but I do have a lot of opinions. Usually they’re just opinions rather than provable scientific facts though, so I don’t go quite as hard. As to your question, genuinely, I don’t know, but you can probably do something with an RSS feed? You can also add me on Discord if you want, DM me if you want my username.

this post was submitted on 02 Sep 2023
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