Endesa, S.A. engages in the generation, distribution, and sale of electricity primarily in Spain and Portugal. The company generates electricity from various energy sources, such as hydroelectric, nuclear, thermal, wind, and solar. As of December 31, 2017, it distributed electricity to approximately 22 million populations covering a total area of 195,279 square kilometer. The company also sells energy in energy markets, as well as value-added products and services to customers. In addition, it is also involved in the supply of electricity and gas to other European markets, including Germany, France, Belgium, France, and the Netherlands. Its distribution and transmission networks comprise 316.562 kilometers. Further, the company is involved in the management, operation, and administration of nuclear plants; exploitation of coal fields; electricity transmission business; issuance of debt instruments; provision of consultancy and civil engineering services; and development and management real estate properties. The company was formerly known as Empresa Nacional de Electricidad, S.A. and changed its name to Endesa, S.A. in June 1997. Endesa, S.A. was founded in 1944 and is headquartered in Madrid, Spain. Endesa, S.A. is a subsidiary of Enel Iberoamérica, S.R.L.