REN | 65,885 followers on LinkedIn. Redes Energéticas Nacionais | REN - Redes Energéticas Nacionais operates in two major areas: • The transmission in very high voltage electricity and overall technical management of the National Electricity System; • The transport of high-pressure gas and overall technical management of the National Gas System, guaranteeing the reception, storage and regasification of LNG and underground storage of natural gas. As a result of the country's commitment to renewable energy, the Portuguese government granted REN the concession to operate a pilot area for generating electricity from sea waves to Enondas - Energia das Ondas. S.A., which is 100% owned by REN.