@Gerhardt again
Your thinking round turbine again!!!
Don't think round turbine with all those bits going at different speeds. Think lots of little sailing boats wired together going round.
Then go and sit on the apex of a pitched roof on a calm day and tell me theres no breeze. The winds already avoided your house - its not worried by low demands from an open fence of sails. Or try and stick your head out of a window on the edge of a tower block. No wind in urban areas - try walking between 300m tower blocks in a Chicago street in late autumn!
Dont think maximum efficiency - think bangs per buck. Think impedance matching. The wind will only get out of the way if you ask too much of it.
Take a piece of plain plastic or cloth 15m long by 2m wide and hold one end of it in a gentle breeze. Pick yourself up and tell me theres no power to be had there.
To say wind power will never work because a 3000 year old modification of a brick has not been improved on is, frankly, shortsighted. Though I do have to admint that if global warming kicks in we wont have to worry about the cost decomissioning NP stations - the sea will be doing it for us.