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Offshore wind parks - how does it affect the wind?

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Offshore wind parks - how does it affect the wind?

Postby Toby » Sun Mar 15, 2020 5:53 pm

anyone who knows more about how an offshore wind park will affect the wind 5 km downwind?

Cumbuco is where the left line of the red box hits the shore...wind is E to NE...

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Re: Offshore wind parks - how does it affect the wind?

Postby RustyChain » Sun Mar 15, 2020 7:42 pm


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Re: Offshore wind parks - how does it affect the wind?

Postby Matteo V » Mon Mar 16, 2020 1:23 am

Downwind it does get pretty nasty. My experience is only with snowkiting on land near wind turbines. But you can definitely feel the blade go by at least 500 M down wind to a significant degree, and 1500 m seems like they're still a defined pulse.

But honestly it's just something you try to avoid by a riding outside of the wash of the turbine.

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Re: Offshore wind parks - how does it affect the wind?

Postby kiteykitekite » Mon Mar 16, 2020 1:58 am

It will reduce the wind speed and make it more gusty. How much? You'll have to find out.

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Re: Offshore wind parks - how does it affect the wind?

Postby Kozzie » Mon Mar 16, 2020 2:11 am

Ask on paragliding

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Re: Offshore wind parks - how does it affect the wind?

Postby edt » Mon Mar 16, 2020 4:06 am

It depends on the amount of turbines, I have seen numbers at somewhere around 20% of the wind strength (what they call "wake losses"). My opinion is that is that there's a good chance it will ruin Cumbuco for kiteboarding. Wind energy is such a great thing because it's sustainable. There are always more places to kite.

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Re: Offshore wind parks - how does it affect the wind?

Postby Peter_Frank » Mon Mar 16, 2020 8:31 am

We got many big windfarms here in Denmark.

But they are all located far out from the coast, where noone gets influenced by these :thumb:

Smaller "farms" if one can say that, say 5 to 10 turbines on a harbour, and some places only 3 maybe, are common though, and we have ridden behind these for many years, so my experiences:

You CAN actually ride just behind a line of wind turbines, say only 10 meters away straight along a pier, so kite maybe up only 20-25 meters away, up in the turbulence from the wings.
We do that at wavespots, where the waves are best at this precise location.
BUT, the wind is horrible, kite can suddenly turn "around" and drop, or you get a huge powerspike - really scary the first time you encounter this.
One can learn to handle it though, fly the kite low and fast, then you can cope with these conditions quite well, and enjoy the waves.
Not a chance, forget it...

When you come 500 meters away, the wind is still really shitty, but quite easy to ride.

1 km away, it is sometimes gusty, but okay managable to ride, or jump, very few "dump holes" (wind suddenly drop you) in the air now, but some.

2 km away, you hardly feel anything but "less smooth" wind, not even in 30 knots of wind.

3 km away, free of all (felt) wake turbulence.

When you go past to the outside, the turbulence is, like shown in the photo above, a bit V shaped so ranges wider than the turbines, but wind is very smooth very fast so in free wind :thumb:

Above is when we talk about 3 to 10 turbines exactly upwind of you.
Of course with a little variation depending on wing size and type.

Have no idea about how a 59 turbine wind farm will destroy, assume it will be a lot worse and last further downwind, but now you know what you minimum can expect :-?

8) Peter

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