From Wikipedia, the free encyclopedia
Rede Eléctrica Nacional S.A. is a Portuguese company. Its main activities are global management of the Public Electricity Supply System (PESS), with the aim of guaranteeing the stability and security of electricity supply; operation and development of the national very-high voltage transmission grid in mainland Portugal; management of the portfolio of sites for power stations; and invitation of public tenders for the construction and operation of new power generating plants.