Here in Denmark we have an extreme amount of wind power, maybe even the most in the world, GREAT
I can hear many of you dont have that amount, thus not the same experience with the effects on wind and kitesurf ?
Some are situated at open sea, we have one close to where I live, 111 power generators (windmills) far out, they generate sufficient electricity to almost half a million households, excellent
These, and those on land, do not disturb anyone, as long as they are not close to houses where the "wing shadows" (when sun is low) disturb, so there are strict rules for that.
Back to the real problem:
The best wavespots are always behind piers, wind sideshore so long and clean beatiful swells even when wind is nuking, no chop, and it turns perfectly perpendicular to the wind as desired, and bigger distance between them.
We rarely have big ground swells here, so it is only when windy the size builds up, and you need a point break, or much better, a pier, to give you good waves, but then they will be just as good and peel well, just like a clean groundswell on a windless day.
When a windmill (or like we have at a good wavespot close to where I live, with 5 mills on the pier) is placed on the pier, the shadow extends several miles (kilometers) leeward, so far that if you ride downwind for cleaner wind, the waves get bunk and chop
You CAN ride 20 meters behind a big windmill yes, but your kite will be tossed around either powered to nuclear winds, or it will drop like there is no wind at all - it is really a horror movie riding just there
And precisely behind the pier, the best and cleanest waves roll in.
If the pier is long, the waves will work reasonably further down yes, but the wind is really disturbed far far away from the pier.
See this picture from another windfarm that shows this, on a day where the dew point / fog makes this impressive effect that illustrates why you dont wanna ride behind these.
On the picture they are not as close as on a pier where it would be even worse, as they are very close together so no clean wind anywhere behind them:
So no, you can not "just ride at another place", when the waves are only good behind (and some miles behind) the pier.
And as waveriders only go out when sideshore wind, it will destroy everything
There are two mills right now, not on the pier but on land - these make a huge bad shadow a long way behind, so can be scary to go out/in if you dont know this, but when a bit out when bigger waves, it is okay as almost free now.
When several mills are on the pier, they dont only make a shadow behind each, they really extend (as you can see on the picture somewhat) the turbulence into each other, so it is multiplied hugely and true horror behind these
Would just explain the real issue, as I have loads of experience both from wind and kitesurf directly and far behind windmills here
PS: And I am not really picky regarding gusty turbulent winds, so when I ride and think it is okay fine, most others find it gusty and difficult - so when I find it gusty and bad, it is REALLY bad, believe me....