I disagree that turbines add much to energy needs - sadly they are more often a blight for many years to come on our otherwise open and wild landscapes - the statistics showing that wind power plants which is what they are do not contribute as much as is often claimed by those with a financial interest in them are worth reading. The quantity of turbines needed to make much difference would be very great ... now solar energy or offshore windturbines are a better alternative in my opinion rather than destroying our remaining wild landscapes and a threat to our wildlife - e.g large birds etc ...