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, 2020, its distributed electricity to approximately 21 million populations covering a total area of approximately 195,488 square kilometers. The company distribution and transmission networks comprise 315,365 kilometers. It also sells energy, as well as provides energy related commercial services. The company also engages in installation, maintenance, and repair services of electricity, gas, and air conditioning; servicing of individual domestic hot water boilers, and electrical repair services. 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. Further, the company is involved in the electric mobility, demand management, distributed generation, energy storage; exploitation of primary energy resources; provision of energy related industrial services; electricity transmission business; management, operation, and administration of nuclear plants; issuance of debt instruments; consultancy and civil engineering services; and develop and manages 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. The company was incorporated in 1944 and is headquartered in Madrid, Spain. Endesa, S.A. is a subsidiary of ENEL Iberia, S.L.U.