Tata Power Company Ltd is India's largest integrated private power company. The company operates in two segments: power, which is engaged in the generation, transmission and distribution of electricity, and others, which is engaged in the defense electronics, project contracts/ infrastructure management services, coal bed methane and property development. Tata Power Company Ltd was incorporated in the year 1919. The company has successful public-private partnerships in generation, transmission and distribution- Tata Power Delhi Distribution Limited with Delhi Vidyut Board for distribution in North Delhi, 'Powerlinks Transmission Ltd' with Power Grid Corporation of India Ltd for evacuation of Power from Tala hydro project in Bhutan to Delhi and 'Maithon Power Ltd' with Damodar Valley Corporation for a 1000 MW Mega Power Project. The company commissioned their first hydro electric power generating station commissioned at Khopoli in the year 1915 with an installed capacity of 40 MW, which was subsequently upgraded to 72 MW. In the year 1922, they commissioned another hydro power station at Bhivpuri with an installed capacity of 40 MW, subsequently upgraded to 72 MW. In the year 1927, they set up Third Hydro power station of 90 MW capacity at Bhira, which was subsequently upgraded to 150 MW. In the year 1956, the company set commissioned a major thermal power station of 62.5 MW capacity at Trombay, to meet the increasing demand of electricity. Also, they set commissioned two more thermal units of similar capacity i.e. 62.5 MW in the years 1957 and 1960 respectively. In the year 1965, they set up Fourth thermal unit of 150 MW capacity at Trombay. In the year 1984, the company commissioned India's first 500 MW generating unit with multi-fuel burning capability at Trombay. In the year 1990, they set up Second 500 MW thermal unit at Trombay. In the year 1994, the company commissioned a gas-based 180 MW capacity combined cycle plant to provide quick-start capacity to Trombay Thermal Station and to ensure reliable and uninterrupted supply for essential services in Mumbai. In the year 1996, the company commissioned the 150 MW Pumped Storage Unit at Bhira. Also, they set up 67.5 MW Thermal Power Plant at Jojobera (Jharkhand). In the year 2000, The Tata Hydro-Electric Co. Ltd., The Andhra Valley Power Supply Co. Ltd., and the Tata Power Co. Ltd., are amalgamated to become one entity- The Tata Power Company Limited. Also, they commissioned a unit of 120 MW at Jojobera. In the year 2001, the company set up 81.3 MW diesel generator based plant at Belgaum, Karnataka. In the year 2003, the company entered into a joint venture with PowerGrid Corporation of India Ltd., to develop a 1200 Km long transmission line to bring electricity from Bhutan to Delhi. In the year 2004, the company incorporated a wholly owned subsidiary company, known as Tata Power Trading Co. Ltd. for the power trading business. In the year 2005, the company commissioned the unit 4 of 120 MW capacity at Jojobera. In the year 2006-07, the company completed the acquisition of 30% equity in Indonesian Coal Mines, PT Kaltim Prima Coal (KPC), and PT Arutmin Indonesia, as well as trading companies from PT Bumi Resources. In the year 2008, the unit 1 of 2 x 45 MW Phase of Haldia Project is synchronised with the grid. Also, the company commissioned the expansion project of 250 MW (Unit # 8) at Trombay. During the year 2009-10, the company successfully completed the overhaul of Unit 5 during which the Unit underwent major renovation and modernization. The company commissioned Unit 3 of 30 MW, resulting in increase in the installed capacity of the plant to 120 MW. These Units use hot coke oven gas from Hooghly Metcoke and Power Company Limited to produce steam for power generation. Also, the company commissioned an additional 42 MW of wind power capacity, taking the total capacity to 201 MW. During the year 2010-11, the company commissioned an additional 6 MW of wind power capacity in Maharashtra, taking the total installed wind power capacity in Mumbai Operations to 106 MW. Also, the company acquired a 21 MW wind farm, taking the total installed capacity outside Mumbai operations to 122 MW. As of March 31, 2011, the Company's installed wind power capacity outside Mumbai operations was Samana, Gujarat with a installed capacity of 50 megawatt; Gadag, Karnataka with a installed capacity of 50 megawatt, and Nivede, Maharashtra with a installed capacity of 21 megawatt. The Company had an installed capacity of 3,127 megawatt based on various fuel sources: thermal (coal, gas, oil), hydroelectric power, renewable energy (wind, solar photovoltaic and waste gases). Today, Tata Power has an installed generating capacity of 5297 MW and a presence across the entire value chain in generation (thermal, hydro, solar and wind) transmission, distribution and trading. The company has emerged as a pioneer in the Indian power sector, with a track record for performance and has been a frontrunner in introducing state-of-the-art power technologies. Among its achievements, the company has to its credit the installation of India's first 500 MW unit at Trombay, the first 150 MW pumped storage unit at Bhira, a Flue Gas De-sulphurization plant for pollution control at Trombay and is now bringing the first 800 MW super-critical unit at Mundra, Gujarat.