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schizoidman @lemmy.ml

11mo ago

China installs world’s 1st 18 MW wind turbine, to power 36,000 homes/yr

interestingengineering.com

China installs world’s 1st 18 MW wind turbine, to power 36,000 homes/yr

21 comments

That's 360,000 homes in 10 years! The growth is unstoppable!
/s parodying the idiotic misuse of units

Holy guacamole I need more pictures of this giant.
- I am having trouble comprehending how large that is. 260 m blade diameter, means at least 500 m tall. The CN Tower is 550 m tall.

Are there particular pros and cons to the scale of each individual turbine? I think this is the first time I've seen that figure reported as opposed to the capacity of the wind farm as a whole
- With larger turbines you need fewer for the same capacity. This means less manufacturing, easier maintenance, they are taller, which means more stable and stronger wind, and a lower price of construction. However larger turbines also lead to greater stresses on the system, so that can again increase maintenance and large blades are hard to transport on land.
  So it is a compromise. Up to now offshore wind turbine manufacturers always built bigger turbines with newer generations. However the engineering challenges increases, so many have stopped going for bigger then 14-16MW and instead go for increased numbers of turbines with higher reliability.
  
  I can picture the equipment procurement meeting perfectly based on this description, good analysis
  
  Last issue. The forces on the tips of the wind turbines are insane.
- Over a large range of sizes for many physical reasons larger turbines can be more efficient per space and per cost. For example there is less ground effects for larger turbines and the rotor area scales quadratically with hub height.

How do the units even work out? That's 0.5 kW per household, a ridiculously low number.
- It might power 36k households on average but definitely not during times of any serious load.
  At night all I've got running for several hours is my fridge.

Nice! Just think of the number of Xinjiang internment camps they could power! (https://en.m.wikipedia.org/wiki/Xinjiang_internment_camps).
- China pushing hard on renewables is objectively a good thing for the world.
  China is also a human rights disaster and deserves to be shamed for its disgusting treatment of Uyghurs.
  
  While I agree that China pushing renewables is good, shaming them for a genocide doesn’t seem like an appropriate response.
  If some guy in your high school beats the crap out of every disabled kid he sees, but on the weekends he hands out soup at a soup kitchen, should that person be celebrated?
- Imagine if every time something inside the United States got discussed someone popped in to say "remember how we have the most enslaved people of any developed country on the planet"?
  I'd be fine with it personally. But if you think that would be annoying, maybe you should stop doing the same thing.
  
  I wouldn’t find it annoying. I think it is important to remind the populace of the abhorrent things governments do, ESPECIALLY when they continue to do these things. The camps are still operational. So I’ll be happy to shut up when they shut them down.

Surprised they aren't pushing more aggressively into floating offshore.
Does anyone known why they aren't?
- It's freaking hard

21 comments