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Monday, January 23, 2023

The taller the wind turbine, the harder they fall. And they sure are falling.



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More from the article...

...Wind turbine failures are on the uptick, from Oklahoma to Sweden and Colorado to Germany, with all three of the major manufacturers admitting that the race to create bigger turbines has invited manufacturing issues, according to a report from Bloomberg....

Turbines are falling for the three largest players in the industry: General Electric, Vestas, and Siemens Gamesa. Why? "It takes time to stabilize production and quality on these new products," Larry Culp, GE CEO, said last October on an earning call, according to Bloomberg. "Rapid innovation strains manufacturing and the broader supply chain."

Without industrywide data chronicling the rise"and now fall"of turbines, we're relying on industry experts to note the flaws in the wind farming. "We're seeing these failures happening in a shorter time frame on the new turbines," Fraser McLachlan, CEO of insurer GCube Underwriting, told Bloomberg, "and that's quite concerning."...

#1 | Posted by LampLighter at 2023-01-23 02:59 PM | Reply

There has to be quite a moment arm at ground level on those things. They go up so fast I've always wondered how they are anchored.

#2 | Posted by REDIAL at 2023-01-23 03:04 PM | Reply

Saw one on its side in Germany a few years ago. Blocked the highway.

#3 | Posted by LegallyYourDead at 2023-01-23 03:12 PM | Reply

@#2 ... There has to be quite a moment arm at ground level ...

My thought also.

How Are Wind Turbines Made?

...The foundation: Once developers select a site for a land-based turbine tower, they level the ground and lay down a concrete foundation, which can use as much as 600-1000 tons of concrete and 165 tons of steel....

#4 | Posted by LampLighter at 2023-01-23 03:25 PM | Reply

"600-1000 tons of concrete"

Concrete is the #2 source of manmade CO2 emissions, about 15%-ish if I recall correctly.

#5 | Posted by snoofy at 2023-01-24 12:00 AM | Reply

#2 Spar buoys seem less likely to stay verticle.

#6 | Posted by bored at 2023-01-24 12:40 AM | Reply

"600-1000 tons of concrete"

That's a lot. Isn't that like 100ish truckloads?

#7 | Posted by REDIAL at 2023-01-24 12:58 AM | Reply

#6 "Spar buoys have been used by the oil and gas industry for years for offshore operations."

Sounds like a proven technology in a similar application in the energy industry.

#8 | Posted by snoofy at 2023-01-24 02:18 AM | Reply

That's a lot. Isn't that like 100ish truckloads?

#7 | POSTED BY REDIAL AT 2023-01-24 12:58 AM | FLAG:

30 to 50. Should be 20 tons per load. It's 3 to 5 trucks on average for a suburban home foundation.

#9 | Posted by sitzkrieg at 2023-01-24 08:11 AM | Reply

It's the cancer...they're falling over because of the cancer.

#10 | Posted by chuffy at 2023-01-24 10:12 AM | Reply

On the Altamont wind farm they dug a hole into the ground about 15 feet deep. We put in forms and poured 4/6 foot thick reinforced concrete footings with rebar sticking up. The ground was backfilled and tamped firmly. A large form was built to ground level and a bracket that held the very long 2 1/2 inch thick bolts were suspended in the correct circular configuration This was filled with concrete/rebar cage. The Tower pieces were put in place with a crane (they came nested within each other by diameter from Europe.) The many big nuts were torqued to very high ft/lbs. The iron workers assembled the various sections and a huge crane placed the generator part and the assembled wings (huge and long)on top. Unless the bolts are failing or some such there is not much chance of the tower tips with the concrete pulling out of the ground.

Working from memory of a 1987 construction job.

#11 | Posted by randomcanyon at 2023-01-24 11:43 AM | Reply

@#7 ... That's a lot. ...


But, as you commented... moment arm.

#12 | Posted by LampLighter at 2023-01-24 12:50 PM | Reply

#5 | Posted by snoofy

Here's a link: Wiki

It is about 5%. So yes but it seems about half of that is from burning fossil fuels not from the concrete itself.

#13 | Posted by GalaxiePete at 2023-01-24 01:59 PM | Reply

Hmm which is worse...A toppled windmill or an oil leak at the bottom of the sea that can't be stopped and ruins the local ecosystem for years?....Such a hard decision.

#14 | Posted by SpeakSoftly at 2023-01-25 01:05 PM | Reply

Accidents and mistakes will happen with any source of energy. The accidents and mistakes that happen with solar and wind are minuscule compared to fossil fuel or nuclear.

#15 | Posted by SpeakSoftly at 2023-01-25 01:07 PM | Reply

Just like professional athletes, they are dropping dead because of the COVID vaccine.
Specifically, the radiation from the 5G chips in the vaccine interferes with the hardening of the concrete.
I will not be taking questions.

#16 | Posted by snoofy at 2023-01-25 01:10 PM | Reply | Funny: 1

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