Practical information

Gas retailers

If you already have a fully completed gas installation (with the corresponding certificate from the installer), you can activate natural gas supply to your property through a gas retailer. The retailer of your choice will take care of sending us your request to activate your natural gas service.

You can contract your gas supply in two ways:

  • You can contract your gas supply with a retailer, who will offer you their own rates and conditions. In the de-regulated market, companies set the price of energy and consumers choose the rate that works best for them.
  • You can pay the last-resort tariff. The last-resort tariff is set by the government. Consumers whose annual usage is less than 50,000 kWh and who are connected to gas mains with a pressure of 4 bar or less are eligible for the last resort tariff. There are two different last resort tariffs, determined by customers’ annual usage:
    • T.1 is for customers who use up to 5,000 kWh/year. This is the typical usage range found in homes with natural gas cookers and/or boilers.
    • T.2 is for customers who use between 5,000 kWh/year and 50,000 kWh/year. This is the typical usage range found in homes with natural gas heating.

The following companies are designated as last resort retailers:

  • 1. Endesa Energía XXI, S.L.U.
  • 2. Gas Natural S.U.R. SDG, S.A.
  • 3. EDP Comercializadora de Último Recurso, S.A.U.
  • 4. Iberdrola Comercialización de Último Recurso, S.A.U.

If you’d prefer, you can choose to contract your gas supply at a rate and under conditions you agree upon freely with a retailer.

You can learn about different aspects of the natural gas market on the CNMC’s website under ‘Energy/Consumers/Natural Gas’ or by calling 91 432 96 00.

If you need help choosing a retailer, take a look at the complete list of gas retailers published by the CNMC, which includes each company’s customer service phone number.

LNG plant contracts

According to Royal Decree 949/2001, licensed entities may enter into contracts for the use of other services and installations that include services or conditions other than those regulated by the royal decree, which shall be freely agreed upon by the interested parties.

These services shall be offered to all interested parties, under transparent, objective and non-discriminatory conditions. Distributing companies that offer said services must publish the current prices and conditions of these services on their website.

Contract governing the provision of LNG transport services to satellite plants.

Description Download document
2021 price list for LNG road transportation services 2021 price list for LNG road transportation services

Helpful documents

The following documents are available for download in PDF format:

Description Download document
Definition of IEC-870-5-101 Protocol definition of IEC-870-5-101 Protocol

If you’d like a copy of the Gas Installation Regulations, please request it through Customer Service.

Helpful links

Entities in the Autonomous Regions of Asturias, Cantabria and the Basque Country: