FAQ
How much do solar panels cost for a house in Spain?
Solar panels for a house in Spain cost roughly 5,500 to 7,000 euros for a 5 kW self-consumption system, installed and legalised, which works out at about 850 to 1,300 euros per kWp. Adding a battery, a 6 kWp system with 5 kWh of storage rises to 10,000 to 14,000 euros.
Solar panels cost in Spain in 2026
| System | Guide price |
|---|---|
| 5 kW self-consumption, installed and legalised | 5,500 to 7,000 € |
| Price per installed kWp | 850 to 1,300 € |
| 6 kWp with a 5 kWh battery | 10,000 to 14,000 € |
The kWp (kilowatt peak) is the maximum power the panels deliver under reference conditions. It is the unit used to size and compare systems.
What the price includes
- Photovoltaic panels and mounting structure.
- Inverter, which converts the panels’ direct current into alternating current for the house.
- DC and AC protective devices, including surge protection.
- Legalisation under RD 244/2019 on self-consumption (autoconsumo) and ITC-BT-40, with its boletín (electrical certificate).
- Registration for surplus compensation (compensación de excedentes), so the energy you export to the grid is credited on your bill.
What the price depends on
- The power you need for your consumption.
- The roof: orientation, pitch, type of roof and ease of access.
- The distance between panels, inverter and fuse board.
- A battery, if you want one.
How much you save and the payback period
The average saving of a residential system in 2025 was about 189 euros per installed kW per year. For 5 kW, about 945 euros a year. With a cost of 5,500 to 7,000 euros, the simple payback works out at about 6 to 7.5 years, although it depends heavily on how much you use during the day. In Seville, with about 3,000 hours of sunshine a year, each kWp produces roughly 1,600 to 1,750 kWh a year.
Solar panels and an electric car
If you have or will have an electric car, a charger that uses solar surplus lets you charge from the sun during the day. About 2 extra kWp covers almost all of 15,000 km a year.
Tax deductions
Royal Decree-law 7/2026 extended the Spanish income tax (IRPF) deductions for energy efficiency work in homes (20 %, 40 % and 60 %). Whether they apply depends on each case, so check with your tax adviser before counting on them.
Battery or not?
A battery makes the system considerably more expensive. It pays off mainly when you use a lot of electricity at night and your surplus is paid at a low price.
When to call an electrician
When you want a study based on your real consumption and your roof, and a fixed price with legalisation included. In Seville, Spain we do it through our solar panels service. Rates on our prices page and more answers in our FAQ.
Related services
Solar panels for self-consumption
We install solar panels in Seville, Spain and the surrounding province on a turnkey basis: we study your consumption and your roof, fit panels, inverter and protection devices, and handle the legalisation and the compensation for your surplus energy. With Seville's sunshine, each kW installed saves an average of about 189 euros a year.
Solar EV charging
A solar EV charger in Seville, Spain lets you charge your electric car with the energy your roof does not use. We install the wallbox with its meter so it charges only from solar surplus, or from surplus plus a minimum from the grid, and if you do not have panels yet, we carry out the complete installation.
Related questions
Can I put solar panels on a block of flats with a community of owners in Spain?
How much do solar panels save per year in Spain?
How much does an energy performance certificate cost for a home in Spain?
What is reactive energy and why am I charged for it in Spain?
What maintenance do solar panels need?
Can I put solar panels on a country house with no mains electricity in Spain?
Need an electrician in Seville, Spain?
Call us or send a WhatsApp message with a photo of the job. You get a fixed quote before any work starts.