[RayChuang88]

Here's the thing: these types of wind turbines shown in your pictures may be already obsolete.

A new wind turbine technology called the Windtamer turbine as shown here by this picture:

...When scaled up could generate just as much power as a conventional wind turbine, but it has the advantages of 1) no needing towers hundreds of feet high, 2) automatically follows wind direction and can operate in high and low wind speeds, eliminating the need for mechanically-expensive gearbox systems to control turbine speed and to turn the wind turbine to face the wind, and 3) because birds see it as a solid object it will mostly eliminate the problem of bird kills.

[Daffynition]

Thanks. I’ve not seen that design before.

[palmer]

Vacuous website doesn’t tell me what it produces at various windspeeds or how they keep it pointed into the wind.

[Lakeshark]

And of course, it blows when the wind doesn't.........

Until effective storage is invented, wind is a total loser. Totally useless for major power generation.

But it'll make you feel good........