The Power of Wind Wind energy is a free and limitless power source. No matter where you go, there will always be wind. In the past, wind was captured and controlled through the use of sails for the powering of ships. Now that larger amounts of energy have been found, through the burning of fossil fuels, the art of sailing has faded to a recreational sport. Wind has also been used in the past to power mills, which have been used to pump water and grind grains. Though now these techniques of harnessing wind’s power are now not widely used, even though it is an effective power source