Battery storage
Solar panels with battery storage
A battery lets you use at night some of the energy you produce during the day. It does not always pay off: it depends on your evening use and how much you are paid for surplus energy. We show you the numbers before you invest.
What is included
- Analysis of your evening and night-time use
- Comparison with and without a battery
- Expandable batteries if your use grows
- Also for existing installations
When does a battery pay off?
When a large share of your consumption happens in the evening and surplus energy is credited at a low price. If you use most of your electricity during the day, adjusting habits or your tariff usually gives a better return.
How much does solar with a battery cost?
Market comparisons published in 2026 put a home solar system with a battery at roughly €7,000 to €14,000, against about €4,000–8,500 without one, for systems of around 3 to 7 kWp (Tarifasgasluz, June 2026). These are guide figures: the final price depends mainly on battery capacity (kWh), whether you need backup output to keep power in a blackout, and your roof.
The battery is also what qualifies a home for the Junta de Andalucía incentives, which require storage, and some town halls' IBI rebate lowers the final cost. See grants and subsidies, and whether it pays off in is a solar battery worth it in Spain?. Send us your bill and we will give you a fixed price.
How we work
- 1AssessmentWe look at your usage and your property.
- 2ProposalA clear solution and quote, explained.
- 3InstallationInstallation and commissioning.
- 4PaperworkAll the permits and registrations that apply.
- 5AftercareWe are still here when you have questions.
Completed installations
Solar with batteries by town
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Frequently asked questions
Can I add a battery to my existing installation?
In many cases, yes, depending on your inverter. We check the model and tell you whether you need a hybrid inverter or an additional unit.