Korea Electric Power Corporation, integrated electric utility company, generates, transmits, and distributes electricity in Korea and internationally. The company operates through Transmission and Distribution, Electric Power Generation (Nuclear), Electric Power Generation (Non-Nuclear), Plant Maintenance & Engineering Service, and Others segments. It generates power from nuclear, coal, oil, liquefied natural gas, internal combustion, hydro, solar/wind, and biomass sources. As of December 31, 2014, the company had a total of 607 generation units, including nuclear, thermal, hydroelectric, and internal combustion units with an installed generation capacity of 72,305 megawatts. Its transmission system consisted of 32,795 circuit kilometers of lines of 765 kilovolts and others, including high-voltage direct current lines, as well as 805 substations with an installed transformer capacity of 285,242 megavolt-amperes; and distribution system consisted of 107,804 megavolt-amperes of transformer capacity and 8,832,409 units of support with a total line length of 457,249 circuit kilometers. The company provides electricity to residential, commercial, educational, industrial, agricultural, street lighting, and overnight power usage. It is also involved in providing plant maintenance and engineering services, and information services; selling nuclear fuel; and communication line leasing activities, as well as developing uranium mine. Korea Electric Power Corporation was founded in 1961 and is headquartered in Naju, South Korea.