this post was submitted on 25 Oct 2023
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Well, this is something! (files.mastodon.social)
submitted 1 year ago* (last edited 1 year ago) by [email protected] to c/[email protected]
 

Meanwhile in Germany:

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[–] [email protected] 20 points 1 year ago (1 children)

I couldn’t be less surprised

[–] [email protected] 13 points 1 year ago (2 children)
[–] [email protected] 5 points 1 year ago* (last edited 1 year ago)

Like most of the time, the answer is complex: Yes, there is less wind in the south, but also yes, the south could approve more wind turbines. Yes, the south slows down the construction of high voltage power lines from the wind-rich north to the energy-hungry south, but the states that have to be crossed also do "their part".

In the end a couple different electricity-pricing regions would help in balancing all of this.

[–] [email protected] 4 points 1 year ago (2 children)

So you say they would also be at 100% wind energy if they only had more wind? And it has nothing to do with the miniscule amount of wind turbines?

[–] [email protected] 3 points 1 year ago (2 children)

I think that map shows more that the southern states don't have much wind which is why that region is "lagging behind". There's plenty in the north and off the coasts so it should be built there and sent down south.

[–] [email protected] 2 points 1 year ago (1 children)

No, the south is lagging behind, because of incompetent governors, like the one in Bavaria who is well known for blocking the construction of wind turbines.

[–] [email protected] 0 points 1 year ago (1 children)

That's the popular opinion, but the reality is also that Wind Turbines are a no brainer in the North, and in the south it's often barely worth it

[–] [email protected] 1 points 1 year ago (1 children)

TL;DR:
From what I know, you are wrong.

Long version:
Thanks for pointing out that this might be just the popular opinion. I took this as an incent to dive a bit deeper and I look now especially at Bavaria, the state with the largest area in Germany, while also being one of the southern states.

Bavaria, with Söder as the governor, has been known and critisised for their lagging wind energy expansion. (I can provide you with various sources on that, but since you are already aware of this public opionion, I will provide them when requested.) This was also due to the 10H regulation, which mandated that wind turbines must maintain a minimum distance from residential buildings, equivalent to ten times their height, within certain designated areas. With heights of about 200 m for wind turbines, this means a distance of at least 2 km to residental areas. As a consequence this renders the usable area for wind energy in Bavaria to less than 0,05 % of it's size and effectively stopped progress in the construction and installation of wind energy plants. Source: https://kommunalwiki.boell.de/index.php/10H-Regelung

This regulation was loosened a bit in November 2022, some exceptions were made and the minimum distance was reduced to 1000 m . Source: https://www.verkuendung-bayern.de/gvbl/2022-650/

That loosening should allow for 800 to 1000 new wind turbines (Number sources: 800: https://www.sueddeutsche.de/bayern/bayern-windkraft-gesetz-kritik-1.5642558 , 1000: https://www.bayern.de/bayerischer-landtag-beschliet-lockerung-von-10h/ ). However, of those 1000 wind turbines exactly 4 were constructed and put into operation about one year after loosening the regulation (well, there were 5 constructed, but one was deconstructed again, lol). Source: https://www.br.de/nachrichten/bayern/bayern-hat-2023-bislang-vier-windraeder-genehmigt-faktenfuchs,Tqwfrvt .

What a marvellous achievement... /s

Moving on to the next point. You said, that wind turbines are often barely worth it in the southern states. Still looking at Bavaria, the "Energie Atlas" (energy atlas) of the state's government says:

Da die Windgeschwindigkeit mit der Höhe über dem Boden zunimmt, können heute mit modernen, technisch weiter entwickelten und höheren Windenergieanlagen auch in zahlreichen Regionen Bayerns gute Stromerträge erwirtschaftet werden.

https://www.energieatlas.bayern.de/thema_wind/potenzial

Translation by me:
Since wind speeds increase with height, good power yields can be generated in numerous Bavarian regions due to todays modern, technologically advanced and higher wind energy plants.

Some contributing factors are also that wind turbines are getting cheaper ( https://www.nature.com/articles/s41560-021-00810-z ) and in Germany there are subsidies for renewable energy sources, including wind energy ( there is the Erneuerbare-Energien-Gesetz (renewable energy law) for that, e.g., https://www.gesetze-im-internet.de/eeg_2014/__28.html , https://www.kfw.de/inlandsfoerderung/Unternehmen/Energie-Umwelt/F%C3%B6rderprodukte/Erneuerbare-Energien-Standard-(270)/?kfwmc=vt.sea.bing.SEA_VT_EEU_Windkraft_GC_F%C3%B6rderung.Windkraft-Foerderung_GC.windkraft%20f%C3%B6rderung&wt_cc1=umwelt&wt_cc2=unt|energie-umwelt&wt_cc3=78753109004179_78752692575892_bp_m, there are various resources on that and I'm too lazy to list more of them now ).

Even though wind speeds are not that high in Bavaria, it is surely far from "barely worth it". If you disagree, please provide reasons and according sources for your conclusion.

[–] [email protected] 1 points 1 year ago

Your TLDR didn't quite catch me there. I don't think we're disagreeing actually. I know all about that first point of yours and I'm entirely with you - the red tape is stupid and should go away. Wherever turbines are worth it they should happen

My example was probably one of the outliers, and surely also due to poor management in part. But the point is, in the long term these turbines need to work without subsidies - and that's much more likely in the North (or some elevated locations in Bavaria that are not protected)

[–] [email protected] 1 points 1 year ago (1 children)

They could at least build solar energy. They don't.

[–] [email protected] 1 points 1 year ago

Of course they do:

[–] [email protected] 1 points 1 year ago* (last edited 1 year ago)

I'm saying the south would need at least 5x (you can fight me on the exact number) the turbines of the North to get to 100%.

This is due to

  • higher energy consumption due to energy intensive industry
  • lower wind turbine output due to less wind

Therefore it's not worth it to build a ton of turbines in the south. Sure, we could have more in those locations where it's worth it (dark spots on the map).

I grew up in a village near the Alps, one of the few with it's own citizen-financed wind turbine. My parents invested. They're lucky to get their money back because the return is so bad. Once the state money ran out it barely paid for itself