Sadly though, wind farms haven't been built in Australia for advantageous environmental reasons at all. They are from big business for bigger profits.
Have you ever wondered when driving past one on a windy 25 degree C day that many or all the props are parked? Why would that be? They are U/S?
I think because of the ridiculous "competitive" electricity market on the East coast of Australia. Wind power waits until base load (coal and gas fired) peaks and the spot price skyrockets and then they come on line.