What you use by day
While the sun's up, you run on your own energy instead of buying it from the supplier. That's what brings the bill down the most.
Solar panels · Real savings
How much do you save with solar panels in Mallorca?
We're Joaquín and Juan, installers in Mallorca since 1998. We'll give it to you straight: the savings from solar panels depend on your roof and your usage, so there's no magic figure that fits everyone. What we can do is explain what it comes down to and work it out for your home, with the hours of sun we get here.
Send us photos and details · Reply within 24-48 hours on working days · We assist you in English, Spanish and German
First, the honest truth
What your savings depend on
A family that uses a lot during the day is a different case from a house left empty on weekdays. Your savings with solar panels depend above all on: how much electricity you use and when, the orientation and the space on your roof (in Mallorca, the west-facing afternoon sun performs beautifully), the power we install and whether or not you add a battery. That's why, instead of promising you a percentage, we work it out with your real figures.
How it turns into euros
Self-consumption and surplus compensation
What's left over
The energy you generate but don't use goes back to the grid and is credited on your bill, cutting what you pay even further.
With a battery
A battery stores the day's surplus to use at night. It pays off when you use a lot outside the sunny hours; we'll assess it for your case.
Less to put in up front
Grants cut what you pay in
For individuals in the Balearics, solar self-consumption (and batteries) goes through the FOTOPAR grant when a call is open (the 2026 call closed on 30 April 2026; the 2027 call takes applications from 26 January to 30 April 2027, to be made before the work starts, and applicants must be domiciled in the Balearic Islands), and on top of that, if the system is on a property you own and is finished and paid for in 2026, you can claim the income-tax (IRPF) deduction for self-consumption: 10% of what you pay, on a maximum base of €5,000 a year and after subtracting any grant, paid by bank and with the Electrical Installation Certificate (CIE). The other deduction, for energy-efficiency works, requires the before and after energy certificates to prove the improvement in your main home or in a home you let, and cannot be applied to the same installation. All of that shortens the payback time. We prepare the paperwork and, with your authorisation, file and justify the grant, and you sign the application; approval, of course, depends on the administration. We explain it all on the grants page.
No surprises
How we work it out at JSL
We look at your electricity bills (how much and when you use power), your roof and its orientation, and we size the installation to produce what you really need. With that we give you an honest figure: how much you can cut the bill and how long it takes to recover the investment, grants included. The visit and the quote are done by Joaquín or Juan in person.
Common questions
Frequently asked questions about solar savings
How long does a solar panel installation take to pay for itself?
There is no universal payback period. For a home in Mallorca, a proper calculation compares 12 months of consumption with the roof's hourly production. As a solar-resource reference, a PVGIS calculation for Palma —1 kWp, south-facing, 35° tilt and 14% system losses— estimates 1,598 kWh per year. That production is not yet your saving: self-consumed and exported energy must be valued separately.
Do I save at night too, or when there's no sun?
During the day you save by using your own energy; at night you buy from the grid or use a battery. Mallorca follows Article 14 of Spain's Royal Decree 244/2019: under simplified surplus compensation, exported energy can never be credited above the value of the energy bought during that billing period, which cannot exceed one month. Oversizing solely to export therefore does not mean a zero bill.
Is it worth fitting solar panels with the Mallorca sun?
Mallorca has a strong solar resource, and it can be quantified. AEMET records 2,756 sunshine hours per year at Palma Airport for 1981-2010. In JSL's Palma PVGIS calculation —1 kWp, south-facing, 35° and 14% losses— estimated production is 1,598 kWh per year; December provides 99.48 kWh and July 163.83 kWh, so the lowest month retains about 61% of the highest.
What if I use little electricity during the day?
For your Mallorca home, we compare three cases: solar without a battery, shifting loads into daylight hours, and adding storage, using 12 months of bills and your hourly load curve. Seasonality matters too: in the Palma PVGIS reference, 1 kWp produces 99.48 kWh in December and 163.83 kWh in July. A battery shifts energy from day to night; it does not turn winter output into summer output.
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Related services
Self-consumption pays off even more when it powers your heating, cooling and hot water.
Solar panels
Photovoltaic self-consumption installation across Mallorca, with batteries and legalisation.
Heat pumps
Heat, cool and produce hot water with the electricity from your own panels. How it works.
Grants and subsidies
FOTOPAR when a call is open, the income-tax (IRPF) deduction and the IBI property-tax rebate: we tell you what you qualify for and handle the paperwork.
Want to know your real savings?
We work it out from your bills. Send us photos and details.