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One Luz Tariff: tariff with a fixed price per kWh

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Sign up for the most Formidable offer! Save by combining energy, services and equipment with direct discounts on your bills and stable prices.

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The One Luz electricity tariff guarantees a stable price per kWh every month. It is designed for those who use electricity in a stable way over the course of the entire day, or for those who don't want to worry about what time they use the most electricity.

With the One Luz tariff, you don't have to worry about when your electrical appliances consume electricity, as it costs you the same whatever time of the day or night you use them. Putting clothes to wash first thing in the morning will cost you the same as if you put them to wash at noon. You don't have to worry about the time any more.

Want to know how much each kWh costs so you can save energy?

You needn't worry any more, rather than charging by time of the day, the One Luz tariff involves a stable price per kWh. Designed for those who don't want to worry and know their bill will be cheaper.

Quick, easy and simple: All the kWh you consume will cost the same and cost less than with other tariffs. The One Luz tariff is the cheapest electricity tariff offered by Endesa. In your bill, under the energy term, we multiply the kWh you have consumed by the competitive One Luz price. And that's that, no more complications.

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Advantages of the stable price electricity rate

Stable price per kWh

You won’t have to worry about what the time is when you want to use your appliances.

Stable price per kWh

You won’t have to worry about what the time is when you want to use your appliances.

Stable price per kWh

You won’t have to worry about what the time is when you want to use your appliances.

With digital and 100% online invoice

You can complete all your procedures online. Receive all your bills by e-mail as soon as they are issued.

With digital and 100% online invoice

You can complete all your procedures online. Receive all your bills by e-mail as soon as they are issued.

With digital and 100% online invoice

You can complete all your procedures online. Receive all your bills by e-mail as soon as they are issued.

No minimum duration

If you contract on our website. If you're not convinced, you can change tariff (or company) without being penalised.

No minimum duration

If you contract on our website. If you're not convinced, you can change tariff (or company) without being penalised.

No minimum duration

If you contract on our website. If you're not convinced, you can change tariff (or company) without being penalised.

Forget about volatility

The price you pay for electricity in your bills won't be subject to variations in market prices.

Forget about volatility

The price you pay for electricity in your bills won't be subject to variations in market prices.

Forget about volatility

The price you pay for electricity in your bills won't be subject to variations in market prices.

We Reward your Efficiency!

Register and for every kWh you save we discount another, because your savings are worth double!*

Find out more

*Customers who sign up for this promotion may receive discounts in their bills during the calendar quarters of 2023 and subsequently, when compared to consumption in the calendar quarters for a reference quarter that is established as the year prior to participating in the promotion. Maximum Bonus: €50 per Challenge. Maximum savings discounted: 20% of your Reference Consumption. Legal Terms and Conditions apply.

If you are already an Endesa customer, you can also register so we can reward your energy efficiency. And we also have a special offer for you.

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Frequently Asked Questions

Prices with taxes (*)

VAT % Peak hour power term €/kW and year Off-peak power term €/kW and year T. Energía €/kWh
10% 41,031592 €/kW and year 13,494876 €/kW and year 0,138864 €/kWh
21 % 45,134751 €/kW and year 14,844364 €/kW and year 0,152750 €/kWh

(*) Prices including taxes and with a 20% discount. applied to consumption (kWh) for 2 years and without permanence. This promotion is not valid for Ceuta and Melilla. For electricity, the electricity tax is added (2.5% or a minimum amount of €0.5/MWh or €1/MWh, as appropriate) and for gas the hydrocarbons tax (€0.00234/kWh). To the result, VAT is added (21% or 10% as appropriate), IGIC (Canary Islands 0%, 3% or 7% as applicable) or IPSI (Ceuta and Melilla: 4% and 1% as appropriate). To the prices will be added the regulated cost associated with the financing mechanism of the social bonus: Fixed cost per customer (commercialization) of 0.006282€/day (Peninsula and Balearic Islands: 0.00708296€/day or 0.00779125€/day depending on the tax rate applicable in each case; Canary Islands: 0.00643905€/day for domestic customers with power under 10kW and, for all other cases, 0.00663222€/day; Ceuta and Melilla: 0.00650344€/day; all the above amounts include taxes applicable at the effective date of these prices).

The price may be updated on 1 January each year by the value of the actual CPI (last General Year-on-Year Consumer Price Index officially published at the time of the update), as well as for variations in the current regulated components that apply to electricity and gas supplies, and with possible new changes that may be approved by regulation.

In case of updating with the value of the CPI, the year-on-year CPI for November, published on the website of the National Institute of Statistics (https://www.ine.es/) will be used. The update will be made by adding to the previous prices the result of multiplying the CPI by those prices. For more information, the year-on-year CPI for November 2023 was 3,2%, the year-on-year CPI for November 2022 was 6,8%, the year-on-year CPI for November 2021 was 5,5%, the year-on-year CPI for November 2020 was -0.8% and the year-on-year CPI for November 2019 was 0.4%.

Any changes in the regulated components applicable in the contract (upwards or downwards) will be transferred to the customer. These modifications are regulated, they are totally beyond Endesa's control and apply equally throughout Spain and to all companies.

The price may also be reviewed one year after contracting. If there were any changes, we would let you know one month in advance. Always remember that at any time you can terminate the contract or contract another tariff from Endesa or any other company without penalty.

If you contract this tariff on our website (www.endesa.com), there are no penalties if you decide to cancel. If you contract this tariff through another channel, we will be able offer you additional advantageous conditions if you accept a commitment to a minimum duration. There is no need to worry, we will let you know. If you accept it, a commitment to a minimum duration means that should you leave before the end of the first year of the contract a penalty equal to 5% of the estimated outstanding billing will be applied. This estimated outstanding billing is calculated by multiplying the non-discounted contract price at the time of termination by the estimated energy outstanding until the end of the first year of the contract.

If you have another rate, other than the Tarifa One rate, you can switch to the Tarifa One rate without any problem. However, if you have already contracted the Tarifa One rate, you cannot unsubscribe in order to contract it again.

The Tariff One contract is for one year, automatically renewable.

Conditions

Conditions One Luz Tariff 2.0TD

PDF Download

Terms of business

PDF (0.17MB) Download

Conditions digital bill

PDF (0.31MB) Download

Formidable Energía promotion terms and conditions*

PDF (0.28MB) Download

* An example of savings for new electricity contracts for an annual consumption profile for 3,206 kWh of electricity on the Mainland and in the Balearic Islands and 3,526 kWh in the Canary Islands for supplies with a contracted power of less than 10kW.

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.

Save 560€* in 2 years.
Dual Rate

One Luz + Gas

  • An electricity and gas tariff to simplify your arrangements and combine your utility services hassle free.
  • The best tariff 100% online.
Save 240€* in 2 years.
Best online price

One Gas

  • The best price and one of the most competitive rates in the market.
  • You will be able to handle all your administrative tasks by internet in a fast way.
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