needed to break and release the shale gas, which inturn can affect the water table. More to Know India has identified six basins as areas for shale gas exploration: Cambay (Gujarat), Assam-Arakan (North East), Gondwana (Central India), Krishna Godavari onshore (East Coast), Cauvery onshore and Indo- Gangetic basins. . .
Wind Energy The kinetic energy possessed by the wind is due to its high speed, that can be converted into mechanical power by wind turbines . The rotatory motion of wind mill produces wind energy. It can be used for generating electricity, run water pumps, flour mills, draw water from wells etc., The world’s largest and tallest wind turbine is situated in Hawaii. One wind turbine can produce electricity for homes.
Windmill Windmill is a machine that converts the energy of wind into rotational energy by broad blade attached to the rotating axis. When the blowing air strikes the blades of the windmill, it exerts force and causes the blades to rotate. The rotational movement of the blades operate the generator and the electricity is produced. The energy output from each windmill is coupled together to get electricity on a commercial scale.
Figure . Windmill Advantages of Wind energy (i) Wind energy is free, eco-friendly, renewable source of energy. (ii) It does not cause pollution. (iii) Expenses on periodic maintenance is low when compared to the other power sources.
Activity Collect information regarding the (i) Tehri Dam project (ii) Sardar Sarovar Dam project . . Water Energy Earth’s surface is covered with nearly % of water. Harnessing the energy from the flowing water can be used to produce electricity.
The technique to harness the water energy is called Hydropower . The electrical energy is derived from water flow, water falling from a height. Hilly areas are suitable for this purpose where there is continous flow of water in large amounts falling from high slopes. It does not cause environmental pollution or waste generation.
Hydropower plants converts the kinetic energy of flowing water into electricity. This is called hydroelectricity. . .