What could you save?
Set up your home below — bill, battery, electric car — and see a realistic estimate for the Costa del Sol, with a chart of how it pays off. The figures come from the assumptions listed at the bottom, not sales talk. For an exact number, ask us for a no-obligation quote.
Don't know it? No problem — in Málaga the all-in average is about €0.20/kWh. Your bill shows the exact figure.
Batteries are sold in modular stacks, so these are the realistic sizes. One stores your daytime surplus for the evening: it raises the saving but adds cost — watch what it does to the payback.
Deductions of 20% or 40% of the investment exist for your main home, in force to 31 Dec 2026, and need an energy certificate proving the improvement. Some councils also cut your IBI. Not tax advice — confirm with your adviser.
Chart: starting at minus €4,463, your position improves by about €610 a year, breaking even at roughly 7.3 years and reaching about €10,798 by year 25.
How this is calculated
Your bill divided by your price per kWh gives the kWh you use in a year. An electric car adds its own kWh on top, which is why it justifies more panels.
We size the array to that demand and multiply by 1600 kWh per kWp a year, which is what a well-oriented roof yields on the Costa del Sol.
Only 35% is used as it is generated; a battery and car charging raise that, and the rest is exported at €0.06/kWh. That gap is why payback is years, not months.
Solar savings in Málaga
Málaga is one of the best places in Spain for self-consumption solar, with over 2,900 hours of sun a year. What decides your saving is not the number of panels but how much of the production you use yourself. See the real solar panel prices in Málaga, when it is worth adding a battery, and how the paperwork and surplus compensation work. When you have your estimate, ask us for a full solar study with a closed price.
Charging an electric car at home
Charging at home is the cheapest way to run an electric car, especially in off-peak hours — and cheaper still straight off your own panels. Here is how much a home charger costs, and what changes if you live in a block: chargers in apartment buildings. Ready? Ask us for a charging-point quote.
Frequently asked questions
How much do solar panels save in Málaga?
For a typical home a well-sized system saves roughly €500–1,100 a year, thanks to Málaga's 2,900+ hours of sun. What matters most is how much of the production you actually use yourself: without a battery that is typically only 30–40%, because most generation happens while nobody is home. The rest is exported and paid at a much lower rate.
How long do solar panels take to pay back?
The IDAE puts the usual range at 6 to 10 years, and this calculator lands in that band. Anyone promising 4 years is usually assuming you self-consume far more than a real household does. Panels last 25+ years, so most of that life is pure saving.
Is a battery worth it?
A battery raises self-consumption from around 35% to 60–80%, so your yearly saving goes up — but it adds €450–650 per kWh of capacity, so the payback usually gets slightly longer, not shorter. Its real value is independence: energy at night and cover during a power cut. Move the battery slider to see both curves on the chart.
Does an electric car change the maths?
A lot. A car adds significant yearly consumption, which justifies a bigger array, and roughly half its charging can be moved to daylight hours so it soaks up surplus you would otherwise export at €0.06/kWh. Switch the electric car on above and watch the recommended system size and the saving move.
What if I do not know my price per kWh?
Leave it on the average. A typical all-in domestic price in Spain is around €0.20/kWh once energy, grid charges and taxes are included; regulated PVPC has recently averaged nearer €0.17 and fixed free-market deals €0.11–0.17. Your bill has the exact figure, and the closer you set it the better the estimate.
Are there grants or tax deductions for solar panels?
Yes. For your main home there are IRPF income-tax deductions of 20% or 40% of the investment, in force until 31 December 2026 and requiring an energy certificate that proves the improvement. Many councils also cut your IBI property tax for several years, and Andalucía runs its own incentive programmes. Use the deduction selector to see the effect on payback, and confirm eligibility with a tax adviser — this is not tax advice.
I live in a flat — can I still have solar?
Often yes, through collective self-consumption: the building installs panels on the communal roof and the output is shared between the flats that join, each with an agreed share. It needs a decision at the owners' meeting and the numbers work differently from a single house. We handle these projects for communities across Málaga.
Are these figures exact?
No — they are honest estimates from the stated assumptions, to give you a realistic ballpark. The real number depends on your roof, orientation, shading, when you use energy, your tariff, grants and the specific installation. We give an exact, no-obligation quote for free.
Solar: 1600 kWh per kWp/year (Costa del Sol); 35% of production self-consumed without a battery (the realistic 30-40% range, not the optimistic figures often quoted); surplus paid at €0.06/kWh; install €1,100–€1,450 per kWp with everything included (equipment, labour and paperwork); battery €450–€650 per kWh, shifting at most its capacity × 330 cycles × 90% efficiency and only what is genuinely surplus and genuinely needed later; up to 50% of car charging assumed movable into daylight and valued at the off-peak price it displaces; CO₂ at 0.2 kg per kWh. EV compared with a petrol car at 6.5 L/100 km and €1.65/L. Payback uses today's prices and only the deduction you select. Estimates for guidance only: real figures depend on your roof, orientation, shading, when you use energy, your tariff, grants and the specific installation. We never charge for a quote.