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Do you intend installing Solar panels in the Malaga region of Spain?

I would like to share our experience with you.

We bought our house in 2024 and decided to install solar panels, therefore help the plant and receive a reasonable financial return.  We are achieving the first objective but not the second.

We have a contract with Iberdrola, and just assumed we had a fair return, how wrong could we be.  I recently decided to investigate, when I looked at the invoice for May 2026.  The credit from Iberdrola for the KWH’s sent to the grid for May-26 was 18 euro, by our calculations it should have been 52 euro.  During May we generated 932KWH’s of energy, of which 755KW hours were exported to the grid for credit.

The contract states that we will be paid 0.07 euro per KWH, I believe that I am correct in saying, by my calculations that we are receiving only 0.024 euro per KWH.

I was unaware that Iberdrola calculate the monthly invoice in a way that is very beneficial to them, but disastrous for the consumer.  They of course including energy used, various costs and charges, including 5% electricity tax, they then add 21% vat tax to the total. It is only then that you receive a refund for the energy exported to the grid.     

I might add, for the period of 2024, the system somehow failed to work correctly, we were charged for the energy used, as well as the energy exported, our bills were sky high, it took months to sort out, and we did not obtain a refund, although we tried. 

We paid 7300.00 euro for the solar system to be installed, and whilst only receiving a credit of 18 Euro for one month in summer, I will leave you to calculate how long it will take to recover our investment! It is too painful for me to calculate.