Compare the best electricity tariffs
Cheapest electricity tariff in Spain: best deals for Abril 2026
At Selectra we show you an updated selection of cheap electricity tariffs, based on data from our comparator. These offers come from companies that work with Selectra and are ranked according to their Selectra Score, which evaluates each tariff beyond price (green energy, lock-in periods, and customer service).
The cheapest electricity tariff in Abril 2026 is Tarifa Noche from Naturgy, with an estimated monthly cost of 55,06 €. It is followed by Tarifa Por Uso Luz at 55,59 € and Tarifa Fácil Luz from Plenitude at 55,83 €. Below, we show you more offers so you can compare and choose.
Exclusive ranking
Selectra Score: extra help to find the perfect tariff
At Selectra, we have developed a methodology that goes beyond price to help you make the best decision. We take into account key factors such as customer service, user reviews, and much more, to score and rank tariffs beyond their price. We call it the Selectra Score, and it assigns a rating from A to E, where "A" is the best and "E" the worst. This way, you can choose the best option among the cheapest ones.
If you would like a more personalised study, our advisers can provide one completely free of charge.
| Tariff | Price per kWh | Power charge | Monthly estimate |
|---|---|---|---|
| Tarifa Por Uso Luz Naturgy |
|
|
55,59 €/month |
| Tarifa Fácil Luz Plenitude |
|
|
55,83 €/month |
| Tarifa Octopus Relax Octopus Energy |
|
|
56,77 €/month |
| Tariff | Price per kWh | Power charge | Monthly estimate |
|---|---|---|---|
| Tarifa Noche Naturgy |
|
|
55,06 €/month |
| Tarifa Octopus 3 Octopus Energy |
|
|
58,76 €/month |
| Tarifa Discriminación Horaria Repsol |
|
|
61,88 €/month |
Estimates including taxes and regulated charges. Calculations based on 4 kW contracted power and 270 kWh monthly consumption.
Estimates including taxes and regulated charges. Calculations based on 4 kW contracted power and 270 kWh monthly consumption (49% off-peak, 26% mid-peak, 25% peak).
The 3 cheapest fixed-price electricity tariffs
These tariffs are ideal if you are looking for peace of mind: you pay the same for every kWh regardless of what time you use your appliances. The cost per kWh remains the same 24 hours a day. Fixed-price tariffs eliminate bill surprises, making them the most popular choice among people who have recently arrived in Spain.
Tarifa Por Uso Luz
- No lock-in period
- Selectra exclusive price
- App available
- Non-renewable energy
- Online and phone support
Estimates including taxes and regulated charges. Calculations based on 4 kW contracted power and 270 kWh monthly consumption.
More information about this tariff's prices
Tarifa Fácil Luz
- No lock-in period
- App available
- Renewable energy
- Online and phone support
Estimates including taxes and regulated charges. Calculations based on 4 kW contracted power and 270 kWh monthly consumption.
More information about this tariff's prices
Tarifa Octopus Relax
- No lock-in period
- Selectra exclusive price
- App available
- Renewable energy
- Online and phone support
Estimates including taxes and regulated charges. Calculations based on 4 kW contracted power and 270 kWh monthly consumption.
More information about this tariff's prices
1. Tarifa Por Uso Luz — 55,59 €/month
The Tarifa Por Uso Luz from Naturgy stands out as one of the most competitive options on the market, with a monthly estimate of 55,59 € for this consumption profile. The energy price remains stable at 0,1099 €/kWh throughout the day. The power charge is 0,1230 €/kW day at peak rate and 0,0373 €/kW day at off-peak rate. An excellent option if you value simplicity and do not want to worry about when you use your appliances.
2. Tarifa Fácil Luz — 55,83 €/month
The Tarifa Fácil Luz offers a competitive fixed price around the clock with 100% green energy. The energy price remains stable at 0,1145 €/kWh throughout the day. The power charge is 0,0759 €/kW day at peak rate and 0,0759 €/kW day at off-peak rate. If you sign up for a dual tariff (electricity and gas) through Selectra, the electricity price per kWh is even lower.
3. Tarifa Octopus Relax — 56,77 €/month
Octopus Energy offers the Tarifa Octopus Relax with a monthly estimate of 56,77 € for a household with this consumption and power. The price per kWh is 0,0980 €, with no variation by time of day. Power prices are 0,0980 €/kW day at peak rate and 0,0980 €/kW day at off-peak rate. Perfect if your consumption is spread throughout the day and you prefer the peace of mind of a fixed price.
The 3 cheapest electricity tariffs with time-of-use pricing
If you spend most of your time away from home, or you can concentrate your appliance use (washing machine, dishwasher) at night or at weekends, these are the most competitive options.
In Spain, electricity is cheaper from midnight to 8am and throughout the weekend, with prices that can drop to 0.04–0.07 €/kWh. The most expensive hours are from 10am to 2pm and from 6pm to 10pm on weekdays. If you have an electric car, these tariffs tend to be more cost-effective than specific EV tariffs, especially if you charge at night or at weekends.
Tarifa Noche
- No lock-in period
- Selectra exclusive price
- App available
- Non-renewable energy
- Online and phone support
Estimates including taxes and regulated charges. Calculations based on 4 kW contracted power and 270 kWh monthly consumption (49% off-peak, 26% mid-peak, 25% peak).
More information about this tariff's prices
Tarifa Octopus 3
- No lock-in period
- Selectra exclusive price
- App available
- Renewable energy
- Online and phone support
Estimates including taxes and regulated charges. Calculations based on 4 kW contracted power and 270 kWh monthly consumption (49% off-peak, 26% mid-peak, 25% peak).
More information about this tariff's prices
Tarifa Discriminación Horaria
- No lock-in period
- App available
- Non-renewable energy
- Online and phone support
Estimates including taxes and regulated charges. Calculations based on 4 kW contracted power and 270 kWh monthly consumption (49% off-peak, 26% mid-peak, 25% peak).
More information about this tariff's prices
1. Tarifa Noche — 55,06 €/month
The Tarifa Noche from Naturgy stands out as the best time-of-use option, with a monthly estimate of 55,06 €. Energy prices vary depending on the time of day: 0,0718 €/kWh off-peak, 0,1072 €/kWh mid-peak, and 0,1802 €/kWh peak. The power charge is 0,1230 €/kW day at peak rate and 0,0373 €/kW day at off-peak rate. Perfect if you concentrate your consumption during cheaper hours such as nights and weekends.
2. Tarifa Octopus 3 — 58,76 €/month
Octopus Energy offers the Tarifa Octopus 3 with a monthly estimate of 58,76 € for this profile. This tariff applies three different energy prices: 0,0750 €/kWh during the cheapest hours, 0,0944 €/kWh at mid-peak, and 0,1734 €/kWh at peak. Power charges are 0,0980 €/kW day at peak rate and 0,0980 €/kW day at off-peak rate. Highly recommended for households with flexible schedules or with an electric car.
3. Tarifa Discriminación Horaria — 61,88 €/month
With the Tarifa Discriminación Horaria from Repsol, the estimated monthly cost is 61,88 €. The three energy price bands are: 0,0999 €/kWh off-peak (nights and weekends), 0,1189 €/kWh mid-peak, and 0,1689 €/kWh peak. Power costs are 0,0901 €/kW day at peak rate and 0,0901 €/kW day at off-peak rate. Ideal if you can adapt your consumption habits to take advantage of the cheapest hours.
Fixed price or time-of-use tariff: which one should I choose?
If you are looking for the best electricity deal, you will find that the market offers different types of tariff designed to suit different consumption habits and needs. At Selectra, we particularly recommend two main options: a fixed-price tariff, which keeps the same cost per kWh 24 hours a day, or a time-of-use tariff, which offers lower prices at night and at weekends.
The best choice will depend on your consumption habits. If you would like to find out which suits you best, you can request a free personalised study and discover which option will help you save the most.
Reviews of the cheapest electricity companies
Frequently asked questions about the cheapest electricity tariffs and best deals in Spain
How do I find the cheapest or best tariff in a more personalised way?
The best way to find a tariff tailored to your consumption is to use the Selectra electricity and gas tariff comparator. This comparator is based on the Selectra Score, a system that evaluates each tariff beyond price, taking into account factors such as green energy, lock-in periods, and customer reviews. This way, you will be able to see not only the cheapest options, but also the best-rated ones according to your real needs.
How do I choose the best electricity tariff?
First, check your contracted power: many households overpay because they have more power than they actually need. Second, compare tariffs at least once a year, as companies regularly revise prices which can push your bill up; comparing regularly ensures you stay on the best available deal.
Finally, look carefully at promotional discounts: some discounts may seem attractive, but if the base price is high or they come with lock-in conditions, they may not be worth it in the long run.
What is the cheapest tariff if I have solar panels?
Having solar panels allows you to use the energy you generate yourself first, reducing your dependence on grid electricity and lowering your bill. If you produce more than you consume and export the surplus to the grid, you can offset part of your consumption and save even more.
You can compare electricity tariffs for households with solar panels and use our calculator to estimate how much you could save each month.
What should I look for when choosing cheap tariffs for second homes?
When it comes to saving on electricity, almost everyone focuses on the price per kWh, but there is another equally important factor: the power charge. This fixed cost is paid every month even if you consume no electricity, and it can make a significant difference to what you pay just for having a supply.
If you have a second home or a property used occasionally, the ideal option is a tariff with a low power charge. This way you avoid overpaying during the months when the property is barely used. Bear in mind that consumption in these properties tends to concentrate at off-peak hours and weekends — the cheapest periods.
How does Selectra calculate prices?
At Selectra we calculate price estimates using average Spanish household consumption data: 270 kWh per month and 4 kW contracted power. For time-of-use tariffs, we weight consumption according to real usage patterns: 49% off-peak, 26% mid-peak, and 25% peak for three-period tariffs.
When the user enters their actual consumption in the comparator, the calculations are fully personalised to provide the most accurate estimate possible. All prices shown include taxes and regulated charges. You can consult our full methodology here.
Can I sign up for electricity with just a passport, without a NIE?
Yes, most companies accept a passport as a valid form of identification. A NIE makes the process easier, but it is not compulsory to sign up. If you have just arrived in Spain and do not yet have one, you can still sign up.
How long does switching electricity company take?
Switching company is free and takes between 1 and 20 days, depending on the supplier. The switch takes effect at the next billing cycle close, at which point your previous company will send you a final bill covering consumption up to that date.
Throughout the entire process there is no interruption to your supply and you do not need to do anything: your new company handles all the paperwork.
Will my electricity be cut off when I switch company?
No. Switching company is an administrative procedure and does not involve any interruption to your supply. The electricity network remains the same; all that changes is who bills you.
Is there a penalty for leaving my current company?
It depends on your contract. Tariffs with no minimum term, which are the most common in the Spanish free market, carry no cancellation penalty. Check your current contract or contact us and we will help you verify this for free.
Can I set up a direct debit from a bank account in another EU country?
Yes, any European IBAN is valid for setting up a direct debit for your electricity bill in Spain. You do not need to open a Spanish bank account to sign up or to pay.
Is Iberdrola the best option for foreigners in Spain?
Iberdrola is one of the best-known companies in Spain and stands out for its network of physical offices and in-person customer service. However, being the most well-known does not mean being the cheapest. According to our estimates, companies such as Naturgy, Endesa, Repsol, and TotalEnergies offer more competitive tariffs.
What is the CUPS code and what is it for?
The CUPS (Código Universal del Punto de Suministro) is a code of 20 to 22 characters beginning with "ES" that uniquely identifies your electricity connection point. You will find it on any electricity bill. Your new supplier will ask for it when processing the switch, so having it to hand speeds up the process.
I have just moved into a flat with no electricity. Is that the same as switching company?
No. If the supply has been deactivated, you need to request a new connection, not a company switch. The process is different: it may require an electrical installation certificate and the timescales may be longer. Contact a Selectra adviser to be guided through your specific situation.
Could I be entitled to a discount on my electricity bill?
There are two main forms of support you may be entitled to if you meet the income and consumption requirements:
- Social Bonus (Bono social eléctrico): A discount on your electricity bill for low-income households. There are two levels: a 42.5% discount for vulnerable consumers and a 57.5% discount for those in severe vulnerability. If you have just arrived in Spain and think you may meet the requirements, it is worth applying.
- Thermal Social Bonus (Bono social térmico): An additional financial benefit covering heating, hot water, and cooking costs, regardless of the thermal system you use. It is paid during the first quarter of the year and the amount depends on the degree of vulnerability and the climate zone in which you live. To access it, you must have the PVPC tariff contracted with a power of less than 10 kW and already be a beneficiary of the Social Bonus.
