Solar system with storage in the garage, possible?

You didn't read that correctly, the batteries have 150kwh, not charging power. My goal is to fully charge a car overnight, about 12 hours. But that is certainly not necessary.

But for a few years, I'll stick with the e-up and it only charges with 7.4kw AC or 40kw DC

To everyone else: Starting from 24.11., there will be a KfW program that grants a subsidy of €900 per charging point for electric cars.

That was way too low for me. You still get much more in NRW. 60% of the costs (max. €2,000) plus €500 if you order a photovoltaic system at the same time => so I currently get about €2,200. This amount is still available until the end of November (and also applies to new buildings, KfW only for existing buildings).

I didn't buy any electricity with my storage from the beginning of April until the end of October. My supplier is happy about that.

Please show your log. I would be interested. Around Nuremberg (and that is not Hamburg) October was extremely bad. Since the beginning of October I haven't managed to fully charge the storage 10 times.

You didn't read that correctly, the batteries have 150 kWh, not charging power. My requirement is to fully charge a car overnight, about 12 hours. But that is certainly not necessary. But for a few years it stays with the e-up and it only charges at 7.4 kW AC or 40 kW DC

true, I read it wrong.

you are also restricted, e.g. can only charge 11kw.

That's true, but after the subsidy you might be able to increase the power at some point.