Gas tariff
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One Gas tariff

Enjoy one of the most competitive gas tariffs on the market.

10% discount on gas for 1 year and €50 in PARA TI points.

Handle all your enquiries online.

No commitment.

10% discount for 1 year

Variable term

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The variable term corresponds to your consumption.

0,0797

€/kWh

Fixed term

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The fixed term on your gas bill is the fixed part you pay to your reseller.

6,831

€/mes
For RL1 gas, the base price excluding taxes is €0.079700/kWh and €0.07173/kWh with a 10% discount. The base price for RL2 gas is €0.076200/kWh and €0.06858/kWh with a 10% discount. The base price for RL3 gas is €0.073700/kWh and €0.06633/kWh with a 10% discount. Prices exclude taxes and include the 10% discount applied to gas consumption for 1 year. Promotion valid for new contracts with Endesa Energía. The hydrocarbon tax will be added only in Mainland Spain and the Balearic Islands (€0.00234/kWh). Additionally, the following taxes will be added: in Mainland Spain and the Balearic Islands: VAT (21%); in the Canary Islands: IGIC (0%, 3%, or 7%, as applicable); in Ceuta and Melilla: IPSI (4% or 1%, as applicable). Promotion valid for new contracts with Endesa Energía. This promotion is not valid in Ceuta and Melilla.
DISCOUNT

50 €*

One Gas tariff

A natural gas tariff with a stable kWh price 24 hours a day.

 Advantages of Endesa’s One Gas tariff

A stable price for your natural gas consumption.
Sign up online or by phone —whichever you prefer.
Available to both new and existing Endesa customers.

A gas tariff with no commitment or penalties

Manage your contract easily from your online customer area or by phone, whichever suits you best. Access your contract via the app or website and manage all your needs quickly and conveniently.
Plus, with the One Gas tariff, you’ll enjoy the PARA TI loyalty programme. Thanks to it, you’ll start earning points from day one to redeem them for discounts on your gas bill, exclusive promotions, and special prize draws.

Which One Gas option do I need?

Gas tariff
Gas

One Gas RL1

The best gas tariff for annual consumption under 5,000 kWh.

Variable term

0,0797

€/kWh

Fixed term

6,831

€/mes
Prices without taxes. For RL1 gas, the base price excluding taxes is €0,0857/kWh. The base price for... read more

One Gas RL1

Prices without taxes. For RL1 gas, the base price excluding taxes is €0,0857/kWh. The base price for RL2 gas is €0,0742/kWh. The base price for RL3 gas is €0,0737/kWh. The discounts apply to the consumption-based charge and are valid for a duration of 1 year. The hydrocarbon tax (€0.00234/kWh) will apply to the result only in the peninsula and Balearic Islands: in the peninsula and Balearic Islands, IVA (21%) applies; in the Canary Islands, IGIC (0%, 3% and 7%, as applicable) will apply; in Ceuta and Melilla, IPSI (4% and 1%, as applicable) will apply. Promotion valid for new contracts with Endesa Energía. This promotion is not valid in Ceuta or Melilla.

Gas tariff
Gas

One Gas RL2

The best gas tariff for annual consumption between 5,000 and 15,000 kWh.​

Variable term

0,0762

€/kWh

Fixed term

13,6

€/mes
Prices without taxes. For RL1 gas, the base price excluding taxes is €0,0857/kWh. The base price for... read more

One Gas RL2

Prices without taxes. For RL1 gas, the base price excluding taxes is €0,0857/kWh. The base price for RL2 gas is €0,0742/kWh. The base price for RL3 gas is €0,0737/kWh. The discounts apply to the consumption-based charge and are valid for a duration of 1 year. The hydrocarbon tax (€0.00234/kWh) will apply to the result only in the peninsula and Balearic Islands: in the peninsula and Balearic Islands, IVA (21%) applies; in the Canary Islands, IGIC (0%, 3% and 7%, as applicable) will apply; in Ceuta and Melilla, IPSI (4% and 1%, as applicable) will apply. Promotion valid for new contracts with Endesa Energía. This promotion is not valid in Ceuta or Melilla.

Gas tariff
Gas

One Gas RL3

The best gas tariff for annual consumption over 15.000 kWh.

Variable term

0,0737

€/kWh

Fixed term

27,122

€/mes
Prices without taxes. For RL1 gas, the base price excluding taxes is €0,0857/kWh. The base price for... read more

One Gas RL3

Prices without taxes. For RL1 gas, the base price excluding taxes is €0,0857/kWh. The base price for RL2 gas is €0,0742/kWh. The base price for RL3 gas is €0,0737/kWh. The discounts apply to the consumption-based charge and are valid for a duration of 1 year. The hydrocarbon tax (€0.00234/kWh) will apply to the result only in the peninsula and Balearic Islands: in the peninsula and Balearic Islands, IVA (21%) applies; in the Canary Islands, IGIC (0%, 3% and 7%, as applicable) will apply; in Ceuta and Melilla, IPSI (4% and 1%, as applicable) will apply. Promotion valid for new contracts with Endesa Energía. This promotion is not valid in Ceuta or Melilla.

Sign up for electricity too with Endesa

Combine your energy supplies and add up the savings: 20% off electricity and gas consumption for 1 year and €100 in PARA TI points that you can redeem for discounts on your bills.

DISCOUNT

100 €*

Dual tariff
icon Light icon Gas

One Luz + Gas

Enjoy a stable price for your electricity and gas consumption.

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Stable price for 24 hours a day.

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Simplify your management by combining your supplies.

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Enjoy 20% off electricity and gas consumption for 1 year and €100 in PARA TI points.

Who is the One Gas tariff ideal for?

If your gas consumption is consistent throughout the day and you prefer not to worry about time-of-use windows, then this tariff is perfect for you.

Francisco Ferrero

Francisco Ferrero Moriana, Home Energy Advisor

'One Gas is designed for those who want price stability and flexibility when signing up.'

It’s ideal for households with consistent gas usage who want to avoid surprises on their bill.

Why choose Endesa’s One Gas tariff?

1. Energy efficiency and accessibility for everyone
At Endesa, we work to provide energy solutions that fit every household. The One Gas Tariff  combines simplicity, stability, and flexibility —available to both new and existing customers.
2. Monitor your consumption via the app or with personalised support
Check your usage, manage your bills, and access exclusive benefits from your online customer area. If you prefer, you can also sign up or get assistance by phone with support from our customer service team.
3. Endesa reliability, transparency, and experience
More than 20 years serving millions of households. With One Gas, Endesa offers clear conditions, with no commitment or fine print, so you can manage your energy with total confidence.
4. Personalised advice for your home
Whether you’re a new or long-standing customer, we help you find the tariff that best matches your consumption. If you use gas for heating, cooking, or hot water, One Gas offers a fixed price and predictable monthly bills.

FAQS

What are the prices with taxes?

Prices including taxes (*)

Tariff group Fixed term €/month Variable term €/kWh

RL1

8,265510 €/month

0,089625 €/kWh

RL2

16,456000 €/month

0,085813 €/kWh

RL3

32,817620 €/month

0,083091 €/kWh

(*) Prices with taxes. The hydrocarbon tax (€0.00234/kWh) applies to the result only in the peninsula and Balearic Islands: in the peninsula and Balearic Islands, IVA (21%) applies; in the Canary Islands, IGIC (0%, 3% and 7%, as applicable) will apply; in Ceuta and Melilla, IPSI (4% and 1%, as applicable) will apply. Promotion valid for new contracts with Endesa Energía. This promotion is not valid in Ceuta or Melilla.

How does the price of my One Tariff contract evolve?

The price may be updated on 1 January each year based on the actual CPI (latest officially published year-on-year Consumer Price Index at the time of the update), as well as any changes to current regulated components applicable to electricity and gas supplies, and any potential new changes that may be approved by regulation.

 

In case of an update based on the CPI, the year-on-year CPI for November will be used. It is published on the National Statistics Institute website . The update will be made by adding the result of multiplying the CPI by the previous prices to the existing prices. For more information, the year-on-year CPI was 2.4% for November 2024, 3.2% for November 2023, 6.8% for November 2022, 5.5% for November 2021, -0.8% for November 2020, and 0.4% for November 2019.

 

If any changes, either upward and downward, are made to the regulated components applicable to the contract, these will be passed on to the customer. These types of changes are regulated and are entirely beyond Endesa's control. They apply equally across the Spanish national territory and to every provider.

 

Additionally, the price may be reviewed after one year from the contract date. If there are any changes, we will notify you one month in advance. Remember that you can terminate the contract without penalty, as well as switch to another Endesa tariff or to any other company at any time.

How long does the One Gas Tariff contract last?

The One Gas Tariff has no commitment period; you are free to cancel it whenever you wish, without any penalty. However, the One Gas Tariff contract has a duration of one year, automatically renewable.

What does the One Gas Tariff include?

A fixed kWh price for natural gas throughout the year, with no time-of-use periods and no seasonal variations. You can sign up online or by telephone, with no commitment.

Can I sign up if I am already an Endesa customer?

Yes. The One Gas tariff is available to both new and existing customers. You can add it to your current contract or manage it as a new supply.

What are its advantages over the regulated (TUR) tariff?

The TUR tariff changes every quarter and depends on the wholesale market. The One Gas tariff maintains a stable price, allowing you to predict your monthly spending and avoid surprises.

What benefits does the PARA TI programme offer?

By signing up for One Gas, you gain access to PARA TI, Endesa’s loyalty programme. Thanks to it, you’ll earn points with every bill to redeem them for discounts, prize draws, and exclusive promotions.

Can I add extra services like maintenance?

Yes. You can add optional services such as:

  • Full inspection of your gas installation and heating system.
  • Repair services.
  • 24/7 assistance all year round.
  • Bill payment protection insurance for your gas supply.

How can I control my consumption?

Through your online customer area (website or app), you can check your consumption, download bills, set up alerts, and access personalised recommendations.

What’s the difference between One Gas and Conecta Gas?

One Gas Conecta Gas

kWh price

Stable 24/7 with no time bands all year

Stable 24/7 with no time bands all year

Contract management

Online and by phone

100% online (web/app)

Commitment

No

No

Availability

New and existing customers

New customer only

Sign-up

Online, phone, and in-office

Online only

Loyalty Programme

Yes (PARA TI)

Yes (PARA TI)

Customer service

Online and by phone

Online

I have a self-consumption tariff, can I sign up for this tariff?

If you have a solar panel installation with an active self-consumption tariff, you cannot sign up for this tariff. However, at Endesa, we offer the Endesa Solar Tariff, tailored specifically for you.

Does this tariff have any promotions?

Yes, for new customers: 10% off electricity consumption for 1 year.

 

If you sign up for both electricity and gas: 20% off the consumption of both energies for 1 year.

 

If you already have electricity with Endesa and sign up for gas, you’ll get 30% off gas consumption for 1 year.

 

Plus, enjoy an additional €50 discount in PARA TI points to redeem for discounts on your bills.

How do I get the credit from the promotion offered by Endesa?

Simply switch to Endesa. You will receive your credit in the form of points within the PARA TI programme, which you can redeem each month for savings on your bills. PARA TI is Endesa's loyalty programme where, in addition to this advantage, you will find benefits with partner companies and access to exclusive prize draws.

How do I validate my promotional code with Endesa?

Once you have signed up, you will receive an email with the promotional code for your reward and instructions on how to validate it. You must validate this code within the PARA TI programme, in the ‘Promotional codes’ section, under ‘Earn points’. Don't forget to download the Endesa Customers App and register for the PARA TI programme.

How can I redeem my reward on bills?

Once you have validated the code within the PARA TI programme, you will receive your points in your wallet. You can redeem them each month in the ‘Redeem points’ section. From there, you can select the voucher (only one, from those available to you) with the discount you wish to apply to your next bill (maximum €20 per month) and apply it to any of the services you have contracted.

Conditions

See conditions

One Gas Tariff

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Terms of business

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Conditions digital bill

PDF 268.4 KB Download

Black Friday Promotion Legal terms

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* Offer for new electricity and/or gas customers. For electricity, a 20% discount on consumption will be offered: 10% indefinite and 10% for 1 year. Additionally, we will maintain the base price for 2 years (except for CPI increases and/or upward or downward changes in regulated components). For gas, a 10% discount on the variable term (consumption) will be offered for 1 year for new contracts with RL1 and RL2 access rates. For combined electricity and gas RL1 and RL2 contracts, a 20% discount will be offered on each energy’s consumption for 1 year. See prices.

In addittion, €100 promotion for contracting electricity and gas (equivalent to 10,000 points from the PARA TI loyalty programme). PARA TI points can be redeemed for discounts on your electricity and/or gas bills. Don’t forget to download the Endesa Clientes App and register for the PARA TI program. This promotion is not valid in Ceuta or Melilla. See the PARA TI program terms and conditions.

By signing this new contract we inform you that, if you meet the requirements to qualify for the Bono Social discounted rate, you will not be able to qualify for it. Nor will you be able to apply for the Small Consumer Voluntary Price (PVPC) tariff.