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How quickly do they pay for themselves in Spain?
The rise of solar energy is unstoppable worldwide, and Spain, with its abundance of sunlight, ranks among the top countries where investing in solar panels makes perfect sense. With 2026 approaching, more and more (future) homeowners and expats are asking: How quickly do solar panels pay for themselves in Spain?
In this blog, we dive into the numbers, benefits, and payback time of solar panels in Spain in 2026.
The Example Calculation
For our calculation, we’ll use an average installation.
Let’s assume an installation of 8 solar panels with a total system capacity of 4.720 Wp:
- Expected annual yield: 6,303 kWh
- Equivalent savings: €1,381.89 per year (based on average electricity prices in Spain in 2026)
- Total investment: €5,682.31
Payback Time
With annual savings of over €1,380, the payback time is just 4 years. That means the solar panels are fully paid off after this period, and from then on, you enjoy many years of free solar power.
Since solar panels last on average 25 years or longer, you’ll have more than 20 years of pure profit after the payback period.
Return on Investment
With a total investment of €5,682.31 and annual savings of €1,381.89, the return comes to an impressive 29.4% per year.
In addition to the financial gains, Spain offers a number of extra advantages:
- High sun certainty
In large parts of Spain, the sun shines more than 300 days a year, especially in the Alicante, Valencia, and Murcia regions. This allows you to use your solar panels efficiently year-round. - Increased property value
A house with solar panels is more attractive to buyers and renters. Properties with a better energy rating often sell for a higher price. - Future subsidies
Although we haven’t included subsidies in this example, there are often local or national regulations that shorten the payback period even further.
At SolarNRG, we also organize subsidy applications and the documentation to qualify for a tax benefit (for residents).
A Smart and Sustainable Investment
Anyone investing in solar panels in Spain can expect a short payback period and an exceptionally high return. This makes solar panels not only a sustainable choice but also a very smart investment for the future.
Would you like to receive a quotation with a savings calculation?
Fill out our contact form, and our sales specialists will prepare an initial proposal based on the information you provide. Of course, we can also arrange a visit to assess and discuss the situation on site