Is this a sensible plan?

Badger · 21 January 2024 08:43

Totally doable. How effective it is will depend on your location & how much PV capacity you can install.

Our 150 litre chauffe eau gains power from PV generation all year round. In the summer, unless we have guests, we never use any mains to heat hot water. Even in the depths of winter we get some contribution on sunny days.

There is another thread about related matters, & the subject of using surplus PV power to drive things.

Solar autoconsommateur Property & Home

Sorry to start a new topic but my searching hasn’t pinpointed the best thread to post. We currently have a makeshift / test solar setup with a forklift truck battery, inverter and I think 2 panels. We use it to run the house lights (most of our living / kitchen is underground so they are on ALL day!). We are now looking at getting a proper setup after seeing some of the kits now available and seems the rules have changed, and become easier. After pricing we probably won’t go with the kit as we already have some panels 750 w I think and we can source the cables / connectors ect from local electrical places cheaper. We are thinking to order the proper inverter from one of these sites, which comes with the certificate to give to EDF to ‘allow’ us to give them excess electricity. Seems like it is just a déclaration préalable for the panels, up to 3kw, to the Marie. Financially this seems like the way to go. Get on the system properly and add panels as / when with the savings. We had a qui…

Any such system will be better off using the PV across your entire supply, with the chauffe eau only using solar when you have a surplus.