Power which is commonly called 'electricity' is considered to be a critical component of infrastructure that determines the economic development of a country. It is held that the rate of growth of power is generally greater than the rate at which GDP grows. In 2011-12, in India thermal energy counted for 68% of the power generation capacity, Hydel and wind power accounted for 18% while nuclear power accounted for only 2% against a global average of 13%.