Electricity suppliers and virtual batteries

Finding the right electricity contract can be a challenge for many due to the language, the large number of suppliers, and the frequent changes in rates. Our experiences with different electricity suppliers and their rates vary greatly. We have noticed that electricity suppliers often excel in marketing but are reluctant to clearly communicate their rates and especially any potential additional costs, making it difficult for consumers to make an informed choice.

We closely monitor the larger Spanish electricity suppliers and provide advice based on rates, service, languages, and the experiences of others.

There are two options:

1. A contract with the best tariffs

2. A contract with a virtual battery

There are no suppliers that pay out money instead of offsetting or storing.

Note: Electricity prices are like oil prices and constantly change. Therefore, the tariffs on this page are indicative. Only the electricity supplier can inform you about the current tariffs.

1: A contract with the best tariffs:

You get the lowest tariffs per kWh consumed, the highest compensation per kWh returned, and the lowest fixed costs. With these contracts, the compensation for returned solar energy is deducted from the costs for consumed electricity and then from the fixed costs, until your bill reaches 0 euros.

Iberdrola (plan solar)

10 – 12 cents per kWh

8 cent per returned kWh of surplus solar energy

Low fixed costs

Website:

www.iberdrola.es

Email:

clientes@tuiberdrola.es

Phone:

900225235 (Spanish) / 900322044 (English) / 900322049 (German)

Offices:

Avenida Puerto de Santa María, 23 (Calpe)

Calle Mestre Àngel Palència, 8 (Javea)

Calle de Pedreguer, 8 (Denia)

Repsol (tarifa solar)

10 – 12 cents per kWh

5 cent per returned kWh of surplus solar energy

Low fixed costs

Website:

www.repsol.es

Email:

gestion.clientes@repsolluzygas.com

Phone:

919033018

Offices:

Avenida del Marquesat 10 (Denia)

Other suppliers with good tariffs:

  • Naturgy
  • Octopus energy
  • Endesa
  • Fenie Energia

2. A contract with a virtual battery.

You can use a virtual battery for free, but the tariffs and fixed costs are slightly higher, and the compensation per kWh returned is slightly lower. With these contracts, the compensation for returned solar energy is deducted from the costs of consumed electricity and then from the fixed costs, until your bill reaches 0 euros. If you have any surplus electricity after this, it will be stored in a “virtual battery” or “in the cloud.” This is done in euros, not in kWh’s. For example, if 10 kWh goes to the virtual battery at a compensation rate of 8 cents per kWh, then 80 cents will be stored as a balance in the virtual battery. The balance in your virtual battery will be automatically applied in the following months, if necessary. With some suppliers, it is also possible to share electricity with other homes.

Iberdrola (solar cloud)

12 – 15 cent per kWh

8 cent per returned kWh of surplus solar energy

Virtual battery

Website:

www.iberdrola.es

Email:

clientes@tuiberdrola.es

Phone:

900225235 (Spanish) / 900322044 (English) / 900322049 (German)

Offices:

Avenida Puerto de Santa María, 23 (Calpe)

Calle Mestre Àngel Palència, 8 (Javea)

Calle de Pedreguer, 8 (Denia)

Octopus Energy (solar wallet)

12 – 17 cent per kWh

5 cent per returned kWh of surplus solar energy

Virtual battery

Website:

www.octopusenergy.es

Email:

hola@octopusenergy.es

Phone:

900759190

Offices:

Avenida del Marquesat 10 (Denia)

Naturgy (bateria virtual)

12 – 17 cent per kWh

8 – 11 cent per returned kWh of surplus solar energy

Virtual battery

Website:

www.naturgy.es

Email:

servicioatencioncliente@naturgy.com

Phone:

900100251

Offices:

Avenida del Marquesat 10 (Denia)

So, a contract with the best tariffs, or a contract with a virtual battery?

This varies for everyone. Our advice: If you live permanently in Spain, we recommend the contract with the best tariffs, without a virtual battery. If you live in Spain for a few months per year, a contract with a virtual battery might be more interesting.

Note: We do not know if or how long the concept of a “virtual battery” will continue to exist. Sometimes we get asked if additional panels need to be installed to charge the “virtual battery.” We do not recommend this.

How can I switch or get more information?

This can be done by phone, via email, or by visiting a supplier’s office. At Iberdrola, they speak not only Spanish but also English and German over the phone. Via email, you can communicate with most suppliers in English as well as in Spanish.

When you contact a supplier by phone for questions or to switch, we recommend having your electricity bill handy. When you contact a supplier via email for questions or to switch, we recommend attaching your electricity bill so they have all the necessary information from you.

As a solar panel installer, we do not have any financial relationships with electricity suppliers and provide this information purely for informational purposes. We cannot provide any further information beyond what is on our website or facilitate the switch for you.