There are many who think that the concept of wind energy is relatively new. However, this is not the case. About five thousand years ago, the Egyptians were already using the sails in their ships to channel the wind and make their sea vessels faster and efficient. Also, somewhere between 500 to 900 A.D. Persia had already designed and developed the grain-grinding and water-pumping systems. The mechanism of these machines was supported by the wind energy.