In India, the major source of power generation is thermal energy. Over 65% of electric power is made by thermal plants in India. The country has a huge store of coal (about 170 billion tons) – the fifth largest in the world. A thermal power plant converts the thermal energy of coal into electrical energy. Coal is burnt in a boiler that converts water into steam. The growth of steam in the turbine produces mechanical power that drives the generator coupled to the turbine.
Though the thermal power plants contribute most to the generation of power in any nation, they are going to be closed due to their inability to meet the emission guidelines. The Central Pollution Control Board (CPCB) has given warnings to shut down plants that are old and whose carbon outflow levels are high. The land so emptied could be put to an elective use.