GE describes the capacity of the Haliade-X:
One Haliade-X 12 MW can generate enough clean power to
supply 16,000 European households according to wind conditions on a
typical German North Sea site. Based on a 750 MW windfarm and an
estimated AEP, the Haliade-X 12 MW could produce enough power for up to 1
million households.
At 12 MW apiece, it would take 63 of these monsters to constitute a
750 MW wind farm. How they would be placed in the ocean, I don’t know.
If it happens, it will be an engineering marvel. I suppose they would
need to put lights on the rotors to warn low-flying aircraft, but that
won’t help the sea birds. And even if someone installs 63 of these
beasts in the North Sea, it won’t permit retirement of any conventional
power plants, since the wind turbines will be useless whenever the wind
doesn’t blow, or blows too hard. This is the kind of crazy project that
can be explained only by the existence of massive subsidies for
government cronies.
Wind, as well as solar work to produce electricity. Some of the time. Among the pitfalls of the technology though is the lack of constant production, the lack of consistent/reliable production, and the existence of electricity storage which would overcome the production vagaries.
Perhaps, we will one day see these technologies flourish, at this time I find it more likely that people will accept having electricity only when the sun shines or the wind blows, (mildly not too hard).
When speaking of wind generation, it is always mandatory to note the fan blades kill birds and insects.