Solar panels sized on your real electricity use

Yes, if the system is sized to your consumption. Since 2026 the self-consumption premium is gone and surplus buy-back is very low, so the benefit mainly comes from electricity you use yourself during the day. A well-oriented roof and daytime usage improve the return. The quote states the estimated production.

It depends on your daytime consumption, roof area, orientation and shading, not on a standard package. A household that uses little power during the day is better off with a small, well-used system. We review your bills and roof during the visit to propose a suitable size.

Yes, unused surplus can be sold through an EDF OA purchase contract. Since the decree of 1 June 2026, the buy-back price is very low for systems up to 100 kWp: selling adds to your savings but should not be the main reason for the project.

Not always. A battery stores daytime production for the evening; it mainly makes sense if you use a lot of power in the evening and little during the day. Its cost and lifespan must be weighed against expected savings. We assess it case by case and the quote shows the real benefit.

Very little. A visual check and occasional cleaning are enough in most cases, and the inverter is checked during visits. Production monitoring quickly reveals any abnormal drop. Cofany offers maintenance and cleaning.

No. No public scheme funds 100% of a solar installation. Such offers often hide expensive credit or unfavourable terms. Be wary of cold calling and always check the quote, the equipment and the company before signing.