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How to choose the best electricity and gas tariff for your home in Spain

How to choose the best electricity and gas tariff for your home in Spain

Choosing the right electricity and gas tariff is a key decision for any household’s budget. The energy market in Spain offers a wide range of tariffs, with prices that vary depending on different conditions. 

It is not just about finding the lowest price, but about choosing a solution that adapts to your consumption, routines and household equipment. 

In this article, we explain the steps and factors you should consider to find out which tariff to contract according to your consumption habits and start optimising your bill. 

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What to check before signing an electricity contract 

Before signing an electricity contract, it is important to review more than just the price per kWh. 

You should check: 

  • Your recent electricity consumption in kWh. 
  • Whether your consumption is concentrated at certain times of day. 
  • The type of tariff: fixed price, time-of-use, flat rate or promotional hours. 
  • The contracted power capacity
  • Whether the contract has a minimum term or lock-in period. 
  • Additional services included or available. 
  • Customer service quality
  • Possible discounts or bonuses. 
  • Whether the tariff adapts to your lifestyle, household size and equipment. 

Checking all these points will help you avoid paying for services or power capacity you do not need and choose a tariff that really matches your household habits. 

Steps to choose the best tariff 

Following an organised process will make the decision much easier. These are the key steps. 

Review your recent bills: 

Check your consumption in kWh over the last few months. Look at the monthly total and, if possible, identify the time periods when your consumption is highest. This information is essential when deciding between a fixed-price tariff, a time-of-use tariff or a tariff with promotional hours. 

Analyse your energy habits: 

Are you at home during the day or only at night? Do you use electric or gas heating? Do you have an electric car or solar panels? The better you know your profile, the more accurate your choice will be. 

Compare the types of tariffs available: 

The market offers fixed-price tariffs, time-of-use tariffs, flat-rate tariffs and special tariffs for self-consumption or electric vehicles. Each type has advantages depending on the user. You can also change electricity supplier if you find options that better suit your needs. 

Do not look only at the kWh price: 

Also evaluate whether there is a minimum contract period, the quality of customer service, the additional services included and any possible bonuses. At Repsol, for example, most of our tariffs have no lock-in period and allow you to contract services such as Asistente 24h, which covers appliance repairs and faults in the electrical installation. 

Use a tariff recommender: 

Tools such as Repsol’s tariff recommender allow you to find out in just a few seconds which tariff best suits your situation. 

Factors to consider when choosing an electricity tariff 

To know how to choose the best electricity and gas tariff, it is essential to analyse your own needs. Every household is different, and understanding your consumption profile is the first step. 

Type of electricity tariff to choose 

The market offers different tariff types to adapt to each user. The most common are: 

  • Fixed-price tariffs: with these, you pay the same price per kWh throughout the day. They provide stability and are easy to understand. At Repsol, key options include Tarifa Sin Horarios, Tarifa Luz M+, which also includes Movistar Plus+ for one year, and Tarifa Tranquilísima, which guarantees a fixed price for 5 years. 
  • Variable-price tariffs: with time-of-use tariffs, the price per kWh varies depending on the time period: peak, standard and off-peak. Night-time hours and weekends are usually cheaper. 
  • There are also tariffs with discounts during specific hours, such as Tarifa 10h con Descuento
  • The Tarifa Indexada depends on the electricity market price. In these cases, it is advisable to use electricity during the periods when the kWh price is cheaper, which makes it important to understand how the electricity price is regulated. 
  • Special tariffs: these are designed for users with solar panels or electric vehicles, such as Tarifa Vehículo Eléctrico

For natural gas, tariffs are structured according to annual consumption: 

  • Tarifa Gas RL1: up to 5,000 kWh/year, ideal for hot water and cooking. 
  • Tarifa Gas RL2: between 5,000 and 15,000 kWh/year, including heating. 
  • Tarifa Gas RL3: consumption above 15,000 kWh/year

If you want to manage electricity and gas together, Repsol’s Tarifa Luz y Gas RL1 or RL2 allows you to do so with additional benefits such as Waylet balance. 

Electricity and gas usage 

How you use electricity and gas in your daily life is decisive when choosing the most suitable tariff. 

A household where energy is mainly used for lighting and small appliances is not the same as one where people cook with an electric hob, heat water with an electric boiler or work from home with several devices switched on. 

Below, we analyse some specific usage profiles. 

If you work from home, your electricity consumption during the day is significantly higher than that of someone who spends the day away from home. 

Computers, screens, lighting and heating or cooling operate for many hours during peak or standard periods, which can make the bill more expensive if you have a time-of-use tariff. 

In this case, a fixed-price tariff such as Tarifa Sin Horarios is the most recommended option, as you always pay the same price regardless of the time you consume electricity. 

If you are also looking for greater long-term security, Tarifa Tranquilísima guarantees a fixed price for 5 years, allowing you to work from home without worrying about possible increases in the electricity market. 

You can also consider Tarifa 10h con Descuento, which allows you to choose 10 hours a day with a 50% discount. If you concentrate the discounted periods during your working day, the savings can be significant. 

For gas, if you also use gas heating during the day in winter, Tarifa Gas RL2 will probably be better suited to your consumption level. 

Homes used occasionally have very different needs from a main residence. Consumption is intermittent and usually concentrated at weekends or during the summer. 

For this profile, a time-of-use tariff, where weekends have a lower price, may be the most recommended option. 

For gas, if the second home only uses gas for hot water and cooking, Tarifa Gas RL1 will be more than enough. 

Older people usually have consumption that is more evenly distributed throughout the day: television, lighting, cooking and, in many cases, electric heating or air conditioning for much of the day. 

For this profile, simplicity and stability are the most important factors. 

A fixed-price tariff avoids the need to keep track of time periods and makes the bill easier to understand. Examples include Tarifa Sin Horarios or Tarifa Tranquilísima, which protects customers from market fluctuations. 

In addition, services such as Repsol’s Asistente 24h can provide extra peace of mind by covering possible faults in the installation or household appliances. 

In a rented home, flexibility is a key factor for both tenants and owners. 

The stay may be temporary, or you may not have full control over the appliances installed, many of which may be older and consume more energy. 

In this case, it is advisable to choose a tariff with no lock-in period, such as most Repsol tariffs, except flat-rate tariffs, so you can change product if your situation changes. 

A fixed-price tariff such as Tarifa Sin Horarios is a simple and practical choice, while Tarifa con Discriminación Horaria may be interesting if you know you will concentrate consumption during off-peak hours, at night or at weekends. 

If the rental includes gas, Tarifa Gas RL1 will usually cover basic hot water and cooking needs. 

Knowing your habits will help you find tariffs that match them. 

At Repsol, we have Vivit, an app for our customers that lets you keep your contracts and bills at hand, check your consumption and access tips for using energy efficiently at home. 

Number of household members 

The number of people living in the home directly affects total consumption, as a person living alone does not use the same amount of energy as a family of four. 

The more people live in the home, the higher the daily energy use will be. 

A single-person household usually has moderate and more controllable consumption. 

If the person works outside the home and only uses energy in the mornings and evenings, a time-of-use tariff can be very cost-effective, as the highest usage times will coincide with off-peak periods. 

If, on the other hand, they work from home or do not have a clear consumption pattern, Tarifa Sin Horarios offers comfort and stability without needing to monitor time periods. 

For gas, Tarifa Gas RL1 will be sufficient for hot water and cooking. 

You can also discover how much electricity a person living alone uses and which tariff is best according to their habits. 

A couple without children has slightly higher consumption than someone living alone, but it is still manageable. 

In this case, it is important to consider both people’s consumption habits. 

If both work away from home, a time-of-use tariff can generate good savings by concentrating intensive consumption during night-time hours or weekends. 

If one of them works from home, Tarifa Sin Horarios or Tarifa 10h con Descuento may be more advantageous, as explained above. 

For gas, Tarifa Gas RL1 covers the basic needs of hot water and cooking for this profile. 

For more detail, check our article on how much electricity a couple uses and which tariff is best according to their habits. 

With three people at home, consumption is already medium-high and predictability becomes more important. 

A stable tariff such as Tarifa Sin Horarios or one with promotional hours such as Tarifa 10h con Descuento can help balance convenience and savings. 

If there are children at home or several people with different schedules, a fixed-price tariff greatly simplifies daily management. 

A household of four people has considerable consumption. 

A time-of-use tariff is especially recommended for efficiently managing intensive use of appliances such as the washing machine, dishwasher or electric hob by programming them during off-peak periods. 

If the family prefers not to worry about schedules, Tarifa Tranquilísima allows them to maintain a stable price for 5 years, which is especially interesting for households with high and constant consumption. 

If gas is used for heating, Tarifa Gas RL2 is perfectly adapted to this household’s consumption level. 

Large families can benefit the most from actively managing their consumption. 

With multiple devices active at different times, a time-of-use tariff can generate real savings if large consumption items, such as electric heating, the washing machine, dryer or oven, are organised during the cheapest periods. 

Tarifa Tranquilísima may also be considered if the family is looking for price stability over several years without needing to adjust consumption. 

Another option is Tarifa Luz y Gas, which offers peace of mind with a fixed kWh price for both supplies. 

If gas consumption is high, due to heating, hot water and cooking for many people, Tarifa Gas RL2 or even RL3 in very large homes may be the most suitable options. 

Consider lowering your contracted power capacity 

One of the factors that most affects the fixed term of your electricity bill is the contracted power capacity. 

The more power capacity you have contracted, the higher your fixed monthly cost will be, regardless of how much you consume. 

Most homes work correctly with a power capacity of between 3.3 and 4.4 kW

If several high-consumption appliances, such as the oven, electric heating, water heater or washing machine, do not operate at the same time in your home, you may be paying too much for power capacity you do not use. 

Reviewing and adjusting your contracted power capacity can lead to significant savings on the fixed part of your bill, without you noticing any difference in your daily life. 

At Repsol, we offer a power capacity advice service to help you determine the most efficient contracted power for your home. 

In short, the key to choosing the right electricity and gas tariff for your home is understanding your habits and finding a plan that aligns with them. 

At Repsol, we want to help you make the right decision. Use our recommender and discover in just a few seconds the tariff that can help you start saving for real.