REN – Redes Energéticas Nacionais operates in two major business areas:

The transmission in very high voltage electricity and overall technical management of the National Electricity System;

The transport of high-pressure natural gas and overall technical management of the National Natural Gas System, guaranteeing the reception, storage and regasification of LNG and underground storage of natural gas.

REN operates under the highest standards of quality of service and safety criteria and seeks to be one of the most efficient European energy transmission system operators, while creating value for its shareholders within a framework of sustainable development.