Solar panels in Catalonia: self-consumption with paperwork included
Catalunya Servei installs photovoltaic self-consumption systems, with or without batteries, across Catalonia — free feasibility study, surplus compensation and full registration included.
From €4,500 (3-4 kW)
How much do you save with solar panels in Catalonia?
With an average of 2,500 sunshine hours a year, a well-sized 3-4 kW system covers 50-70% of a home's consumption and pays for itself in 5-7 years.
Sizing is everything: more power doesn't always mean more savings. We analyse your real hourly consumption — not an estimate — and orient the system according to roof and shading. We handle registration with the Generalitat's self-consumption registry, surplus compensation with your utility, and the property-tax rebate application at your town hall.
Solar with battery vs. without: which pays off?
Quick answer: Without a battery, payback is faster (5-7 years); a battery makes sense if your consumption is mostly at night or you want independence from grid outages.
| Criterion | With battery | Without battery |
|---|---|---|
| Indicative price (4 kW) | €9,000 – 13,000 | €4,500 – 6,500 |
| Self-consumption captured | 70-90% | 40-60% + surplus compensation |
| When to choose it | High night-time use, outage-prone areas | Daytime use, maximum return |
Our usual advice: start without a battery but with a battery-ready inverter, and add one later if your habits justify it.
Frequently asked questions
How much do solar panels cost for a house?
A 3-4 kW turnkey installation starts at €4,500, registration and surplus compensation included. The feasibility study is free.
Do I need permits to install solar panels?
A works notification to the town hall and registration of the installation are required — we handle everything.
What happens to the energy I don't use?
It's fed into the grid and your utility credits it on your bill. We help you pick the tariff with the best surplus price.
Want a free solar study of your home?
Call us, send a WhatsApp or write to us. Free home visit and written quote with no obligation.