The air flow (Wind energy) through the turbines is converted into the electrical form of energy and it is a renewable form of energy. Air flow through the wind turbines is converted to the electrical energy using the power generators. The energy in the wind turns two or three propeller-like blades around a rotor. The rotor is connected to the main shaft, which spins a generator to create electricity. This energy is used for the electricity generations which either uses the warm surface water or boiling the sea water turning it to the turbine further activating the generator. There are no fuel costs, no harmful gases are produced but it may cause noise pollution to the surrounding people. The turbines do not pollute the environment as if power plants do and do not cause any environmental effects like global warming, acid rain, and asthma. Batteries can store electricity which is generated by wind turbines and these can be used in future when there is no wind. In this situation, energy produced is converted into compressed air. This is generally stored in underground caverns or in large above-ground tanks.