Frequently asked questions about solar panels

It depends on the system size and the town. Usually a prior notification or responsible declaration to the town hall and registration of the self-consumption system are enough. We handle all the paperwork, included in the price.

Yes. With surplus self-consumption, the energy you don't use goes to the grid and your supplier deducts it from your bill (simplified compensation). We register you at no cost.

Income tax relief, IBI and ICIO rebates from town halls and regional calls. They change over time; we tell you which ones are in force and process them.

On a home, the installation itself usually takes 1 or 2 days. Before that there is a technical visit and the study, and afterwards the legal paperwork and self-consumption registration, which depend on the grid operator and the town hall.

It depends on your consumption, the orientation and the roof space. An average home usually needs between 6 and 10 panels. We work it out from your electricity bills so the system is neither too small nor too big.

Panels have a useful life of 25 to 30 years or more, and lose very little output each year. The inverter usually lasts 10 to 15 years and is the part most likely to need replacing first.

Yes. A shared self-consumption system can be installed on the building's roof and the energy split between the neighbours who take part. Spanish law makes the agreement easier: a favourable vote from one third of the owners is enough.

For safety, a grid-connected system switches off when there is a power cut. If you want to keep the lights on during cuts, you need a battery with a backup-capable inverter.

Almost all of them: tiles, metal sheet, sandwich panel or flat roofs. We use the right mounting structure for each case and take care of waterproofing. During the technical visit we check the roof's condition and orientation.

Savings are usually between 40% and 70% without a battery, and more with one. It mainly depends on how much energy you use during daylight hours.

Yes. The inverter connects to the internet and an app shows you in real time what the panels produce, what you use and what you export to the grid.

It is not compulsory. But it pays to have a tariff that gives you a good price for your surplus. We help you choose the one that suits you best.

Yes. We install the charging point and coordinate it with the panels so you charge the car with solar energy during the day, when it is cheapest.