Port handles all the coal and ore traffic in Tamil Nadu. The volume of cargo in the ports grew by 13 per cent during 2005. Spaceport In Tamil Nadu, the Government of India is to set up a new Rocket launch pad near Kulasekharapatnam in Thoothukudi district for which the Indian Space Research Organization (ISRO) has begun work. The location was selected because of its nearness to the equator like the Sriharikota spaceport in the Satish Dhawan Space Centre. Infrastructure Communication Tamil Nadu has four mobile service providers namely BSNL, Airtel, Jio and Vi (Vodafone Idea). BSNL provides 2G and 3G mobile internet connections; Airtel and Vi provide 2G, 3G and 4G services and Jio offers only 4G across Tamil Nadu. Airtel Broadband, Act Broadband BSNL, Hathway and few others are providing high speed Fiber Optic broadband connection in many cities and rural areas across Tamil Nadu. Tamil Nadu government is planning to lay 55,000 km of optical fibre cable across the state and provide high-speed internet up to 1 Gbit/s and connect all the corporations, municipalities, town panchayats and village panchayats. This infrastructure would also benefit all the government departments, entrepreneurs and individual homes. Energy Tamil Nadu has the third largest installed power generation capacity in the country. The Kalpakkam Nuclear Power Plant, Ennore Thermal Plant, Neyveli Lignite Power Plant, many hydroelectric plants including Mettur Dam, hundreds of windmills and the Narimanam Natural Gas Plants are major sources of Tamil Nadu's electricity. The state generates a significant proportion of its power needs from renewable sources with wind power installed capacity at over 7154 MW, accounting for 38 per cent of total installed wind power in India . It is presently adding the Koodankulam Nuclear Power Plant to its energy grid, which on completion would be the largest atomic power plant in the country with 2000MW installed capacity. The total installed capacity of electricity in the state by January 2014 was 20,716 MW. Tamil Nadu ranks first nationwide in diesel-based thermal electricity generation with a national market share of over 34 per cent. From a power surplus state in 2005–06, Tamil Nadu has become a state facing severe power shortage over the recent years due to lack of new power generation projects and delay in commercial power generation at Kudankulam Atomic Power Project. The Tuticorin Thermal Power Station has five 210 megawatt generators. The first generator was commissioned in July