Empresa Nacional de Electricidad S.A., an electricity utility company, engages in the generation and transmission of electricity in Chile, Argentina, Brazil, Colombia, and Peru. The company generates electricity through hydroelectric, thermal, and wind power sources. As of December 31, 2014, it had 14,715 megawatts of installed capacity with 188 generation units. The company supplies electricity to regulated electricity distribution companies; unregulated industrial firms primarily in the mining, pulp, and steel sectors; and pool market. It is also involved in the exploitation, generation, transmission, and distribution of natural gas; execution, construction, and exploitation of the El Melón tunnel; and provision of port administration and project engineering consulting services. The company was founded in 1943 and is headquartered in Santiago, Chile. Empresa Nacional de Electricidad S.A. operates as a subsidiary of Enersis Américas S.A.