REN is a Portuguese transportation company with operations in two major business areas: High Voltage electricity transportation and general technical management of the national electrical system, and high-pressured natural gas transportation and general technical management of the national natural gas system.

Its main goal is to guarantee the continuous supply of electricity and natural gas, at the minimal cost, meeting quality and safety criteria, maintaining offer and demand balance, and assuring the system conditions that ensure the energy market’s feasibility, contributing to the community development and the life quality improvement of Portuguese people.