Slash Your Electricity Bills to €0 with Solar Batteries
A solar battery system can help you achieve a €0 electricity bill – without going off-grid. In Spain, you can store excess solar energy to power your home at night, run high-power appliances like an EV charger, and even keep your lights on during a power cut.
But choosing the right battery isn’t always straightforward.
Some existing solar systems aren’t set up for battery storage. Others start with small-capacity batteries that can’t be expanded. And not all batteries offer backup power during grid outages – something many don’t realise until it’s too late. Expert guidance is essential to make the right choice.
Lastly, battery storage requires ongoing attention. Having a local point of contact for questions and any emergencies is the key to maximising savings.


With Xcel Energía you get
wide range of battery storage solutions
Honest Advice
Local Contact (English-Speaking)
in-house installation team
maintenance, service & emergency callouts
30-year equipment guarantee
easily-upgraded systems
Get Started with a free Solar Study Today
Want honest advice on the best solar choice for you?
When you contact Xcel Energía for a quote, you’ll first get a Free Solar Study. The aim is to understand the system that fits your electricity use, property and your ideal savings.
It’s a chance for you to get all your solar questions answered in a zero-pressure environment.
introductory phone call
home visit
Analysis of recent electric bill (If Applicable)
Property Survey
Custom Solar quote

Free Solar Study
Before sending a quote we carry out a Free Solar Study. This makes sure our quotes perfectly match your electricity use, property and ideal savings.
Free solar studyWhat clients say about Xcel Energía
How our honest advice, quality installations & ongoing support leads to maximum savings.









