How does a villa rooftop solar system work?
The main components and the journey of electricity from the sun to your appliances.
A rooftop solar system is simpler than it looks: panels capture sunlight, and a device converts it into electricity your appliances use directly. This quick tour explains the components and the journey of the electricity.
The solar panels
The panels are the visible part of the system. They are mounted on the roof at an angle and direction set by the technical design, and they produce direct-current (DC) electricity whenever sunlight falls on them. The number of panels depends on your consumption and your available roof area.
The inverter
Home appliances run on alternating current (AC), while panels produce DC. The inverter converts between the two, and it is also the system's "brain": it monitors production and coordinates the relationship with the electricity grid.
The meter and the grid
The system works alongside the regular electricity grid. During the day, your appliances use the panels' production first and draw from the grid only what exceeds production. At night or on cloudy days, the grid keeps supplying you as usual. The path for connecting the system to the grid and the meter depends on the approvals and procedures in force, and the delivery partner coordinates it.
The architectural structure (optional)
In many villas, the system is mounted on an architectural structure — a canopy or pergola — instead of directly on the roof. This gives you shade and a usable outdoor space, and keeps the roof easy to maintain. The final design is set after the technical survey and the compound's approval, where applicable.
Monitoring
Modern monitoring systems let you follow daily and monthly production from your phone and notice any unusual drop early. Periodic maintenance through the partner keeps production close to expectations.
What about your electric car?
If you own an electric car or plan to buy one, part of its daytime charging can come directly from the roof's production. Try the Own Power Simulator to see an indicative estimate of the system size that fits your home and car together.
All figures from the tools on this site are indicative estimates; actual results depend on the technical survey, site, shading and current tariffs.