Portugal has no natural gas resources of its own. The supply of natural gas to the Portuguese market is carried out through long term take-or-pay contracts where the main suppliers are Algeria and Nigeria.
The organisation of the Portuguese Natural Gas System (SNGN) is fundamentally based on the exploitation of the public network which is formed by the National Transmission Network, the Underground Storage Facilities, the LNG Terminal and the National Distribution Network.
The supply of natural gas is subject to public service obligations which are the responsibility of all operators in the natural gas sector including: (i) safety, continuously and quality of supply; (ii) ensuring that the service provided is universal; (iii) ensuring the connection of all clients to the networks; (iv) protection of customers namely in terms of tariffs and prices; (iv) promotion of energy efficiency and protection of the environment.
The following rights are guaranteed to the agents and consumers of this sector: (i) freedom of access to the exercising of the activities; (ii) no discrimination; (iii) equal treatment and opportunities; (iv) impartiality of decisions; (v) transparency and objectivity in rules and decisions; (vi) access to information and the safeguarding of the confidentiality of commercial sensitive information, and (vii) freedom to choose their natural gas supplier.
In this context, the regulation activity carried out by ERSE is aimed at contributing to ensure the efficiency and feasibility of the activities in transparent, competitive and non-discriminatory terms through their continuous supervision and monitoring, integrated in the objectives to achieve an internal and liberalized market.
The following activities are subject to regulation: reception, storage and LNG regasification, underground storage, transmission, distribution and natural gas supply as well as logistic operations for the switch of supplier.
In this page it is available information about ERSE's intervention as regulator of the natural gas sector: (i) Liberalization of the natural gas sector; (ii) Creation of the Iberian Natural Gas Market (MIBGAS); (iii) Monitoring of activities and sector agents; (iv) Definition of tariffs and prices for regulated activities; (v) Promotion and ensuring to achieve appropriate levels of quality of service; (vi) Preparation of natural gas sector codes.