Yes. The consumption survey, the technical visit and the detailed quote are free and without obligation.
It depends on your consumption, not on the size of the house. In practice we start from your bills and the list of your appliances — air conditioning often weighs more than everything else combined. The number comes out of the study, never from a phone estimate.
Yes. The anchoring is calculated from the type of roof and the exposure of the site, with a margin on the expected wind load. We also check the strength of the roofing itself: a perfect fixing on a tired sheet of metal is worth nothing.
Lithium accepts a deeper discharge and many more cycles; it is generally cheaper per unit of energy actually usable. Gel remains relevant for backup use or a tight initial budget.
Yes, it is a regular part of our business. We start with a diagnosis: voltage readings, check of protections and fastenings, real condition of the batteries. The report belongs to you, whether or not you then entrust us with the work.
Yes. Monitoring shows production, consumption and battery state of charge in real time. We receive the same alerts as you.
Yes, that is the point of a hybrid inverter with storage: the switchover is automatic and without noticeable interruption. Autonomy depends on the installed battery capacity.