Wind Wind Installation cost of a turbine depends on the diameter of the machine. As the size increases the installed cost rises, but the specific cost per square mile greatly decreases. This is why many prefer a medium to a smaller size. In the future, if the turbines had to be decommissioned, the cost would be very small. To some, this is large amount of money just to remove one turbine, but to put it into perspective, to decommission the nuclear plant at Three Mile Island the cost has surpassed 3 billion dollars.
Wind energy is a very economically efficient source of energy.
In order to create wind energy there is a process that must be completed to turn the wind into electricity used in the home and office. To start the process, the wind must pass over the airfoil shaped blade. It passes more rapidly over the longer or upper side of the airfoil, which creates a lower air pressure area above the airfoil. The pressure difference between the top and bottom surfaces of the blade results in a force called an aerodynamic lift. This ratio can be varied along the length of the blade to optimize the turbine's energy output of various wind speeds.