NTPC is one of the largest Indian electricity utilities. It has 29,894 megawatts generating 28% of the total electricity in India and with about 20% of the country's capacity. It has an expansion plan to nearly double its capacity and become a 50,000-megawatt company by 2012 and a 75,000-megawatt company by 2017. It is also active in hydroelectric power development, coal mining, gas exploration and downstream diversification.