Roof covering and solar technician selection - Decision?

4000 kWh for 2 "noses" is definitely (too) much.

But I also need them fairly tight – also with home office and two computers, water bed, cooking daily, etc. All electrical devices new and efficient, all lamps LED.

if you have tips, always welcome …

Hello again everyone, so, since I no longer feel good about the first solar installer with his strange 10 kW inverter, I am now leaning more towards solar installer 2. I just spoke to him on the phone; although he does not yet have any references on the website, he has already installed several systems (he only got his master craftsman certificate last year) and I also know two others from the building area who recommend him. And he is really very cheap. Here again are the technical details: - 20.9 kWp - 51 x JinkoSolar solar module Tiger NE HC N-Type black JKM410N-54HL4-B - 2 x SMA inverter STP10.0-3SE-40 - 1 x SMA Sunny Home Manager HM-20 - I will leave out the other materials, but all installation, planning, and commissioning services are also included here - Costs: €25,570 net, therefore €1,223 I just want to make sure again that everything fits or if there is any "problem" hidden that I don't see with my dangerous half-knowledge ^^ I think the 2 inverters fit, the modules too. Anything else I should pay attention to? Many thanks in advance!

If I had any, I wouldn't consume so much electricity. You could drive to the office every day – but then I would be using electricity/diesel for over 80km. Also not sensible. Or give up the waterbed – but that's no fun either. Or give up TV and only read. Or shop daily and always cook fresh – then you could get rid of the fridge (or the freezer chest). None of that makes sense. So I can live with the consumption (especially with photovoltaics).