Endesa, S.A. engages in the generation, distribution, and sale of electricity in Spain, Portugal, France, Germany, Morocco, Italy, the United Kingdom, Singapore, and internationally. The company generates electricity from various energy sources, such as hydroelectric, nuclear, thermal, wind, and solar. It also offers advisory services and technology relating to energy efficiency, distributed generation, and energy demand management; deploys structures for recharging electric vehicles, vehicle-to-grid, and second-life services for batteries; develops integrated services for local administrations, such as public lighting, smart city development, energy efficiency services, and solutions for connectivity; and provides energy producers with financial solutions, as well as provides engineering and construction activities for facilities related to the electricity business. As of December 31, 2023, it had an installed capacity of 21,247 MW in Spain; operates 319,136 km of distribution and transmission networks; and distributes electricity to 10,522 thousands customers and gas to 1,829 thousands customers. 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. operates as a subsidiary of Enel Iberia Srl.