Tariff One Gas + OKGas

The One Gas + OKGas gas tariff combines a single price for the gas you consume, free from surprises, and a maintenance service that includes boiler inspections and a repair service that protects you in the event of a breakdowns.

The One Gas + OKGas tariff guarantees that your gas installation and equipment are always in perfect condition, helping you to reduce your energy consumption and enjoy savings in your bill. It includes:

  • An initial diagnosis.
  • Annual reviews.
  • Unlimited repairs.
  • It includes the cost of theMandatory Periodic Inspection (IPO, in its Spanish initials) of the gas installation.

With Endesa's online service you will receive all invoices by email, as soon as they are issued, faster than the postman could ever promise. You can consult them at anytime, anywhere: all you need is an Internet connection to consult your contracts and invoices from a computer, mobile, tablet, etc. Save time with Endesa's online billing service and your digital invoice.

The One Gas + OKGas Tariff includes a repair service as part of which, in case of an urgent breakdown, a specialised technician will be with you in less than 3 hours. This service operates every day of the year, any time of the day.

The One Gas + OKGas tariff boasts a competitive price helping you to keep your gas bill under control.



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Advantages of the One Gas + OKGas tariff

Urgent breakdown repair service in less than 3 hours

We will be at your home in less than 3 hours to repair urgent breakdowns.

Attention 24h

Permanent assistance: 24 hours a day, 365 days a year.

Extras Included

Includes call-out charge and three hours of labour for each repair.


Digital bill

You will receive all your bills by email as soon as they are emitted. Much faster than the postman. Save time with Endesa online billing.










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Frequently Asked Questions

Prices with taxes (*)

Tariff group Fixed term €/month Variable term €/kWh
RL1 7,441500 €/month 0,071208 €/kWh
RL2 13,431000 €/month 0,061105 €/kWh
RL3 26,015000 €/month 0,058382 €/kWh

(*) Prices include VAT (21%) and do not include Hydrocarbon Tax (gas: 0.00234€/kWh). VAT should be replaced by the corresponding indirect tax, IGIC in the Canary Islands (3%) IPSI in Ceuta and Melilla (1%).

Endesa's One Gas Tariff provides you with a fixed price and allows you to make all arrangements online, thanks to Endesa's online service. Enjoy competitive prices at all times, not just during the first year. We offer you Endesa's best online price.

  • One is a 100% online rate, so you can manage all your administrative tasks quickly and easily, 24 hours a day, in the “Customer Area” section within the online office or by downloading our mobile app. Save time with Endesa's online service.
  • You can contract only what you need, without the obligation of contracting an additional service but with the possibility of contracting one if you wish.
  • You have no commitment to remain.
  • You will receive an email indicating the date and the link through which you will be able to access your electronic bill when it becomes available.
  • Arranging the tariff is simple and easy, there are no extra costs and no downtime in your supply. Streamline your efforts with Endesa's online service arrangement.
  • One rate for ALL customers, new and existing ones.


With Endesa's One Tariff:

  • You’ll enjoy Endesa’s best online price.
  • You will be able to carry out all your administrative tasks 100% online.
  • There is no commitment to remain.

The One Gas + OKGas Tariff provide you with a review of the installations to mainly prevent possible gas leaks that would affect the safety of the property's inhabitants in addition to increasing energy consumption and bills.

Endesa's inspection services are preventive visits to check the condition, safety and proper functioning of the gas installations, pursuant to the provisions of the legal and technical regulations.

The heating circuit consists of the pipes that drive hot water from the boiler to each of the radiators. The most common malfunctions affect: the pump responsible for circulation, the safety valve, the circuit pressure, the boiler's flue, the temperature probe that checks whether the water is hot or the radiator valves.

The price may be updated on 1 January after contracting it, in accordance with the value of the real CPI (the latest general inter-annual Consumer Price Index officially published at the time of the update), as well as because of variations suffered by the current regulated components that are applicable to gas supplies, and with possible new changes that may be approved by law.

If there are changes in the price of your contract, they will be transferred on to the customer whether they go upward or downward. This type of modification is regulated and completely beyond Endesa’s control, applying equally to the entire country and to all companies.

In addition, the price may be reviewed one year after contracting. This would happen in April or October of each year. If there are any changes, we will let you know a month in advance. Remember that you can terminate the contract, or contract another rate from Endesa or any other company any time.


Terms of business

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General conditions of services

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One Gas rate conditions

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OKGas maintenance service

PDF (0.13MB) Download

Specific conditions for registering for fotofactura

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Conditions digital bill

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By subscribing to this new contract you accept the start of the supply contracted during the cancellation period.

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