Photovoltaic system on carport without feed-in

Ah, that is technically possible as a so-called island. But is it sensible? It probably leaves a lot of electricity unused.

There is nothing against doing normal surplus feed-in with your own connection after all

There is nothing against doing normal surplus feed-in with your own connection

The thread is called "without feed-in" anyway.
And I am firmly convinced that it is not financially worthwhile to have the connection created.

By "without feeding in" I meant that no connection to the house can be installed. (Because of several foreign properties lying in between. Maybe that was expressed incorrectly, I'm not very familiar with the technical terminology ;-)

When talking about "Einspeisung," one normally means "feeding into the power grid." So yes, that probably wasn't really what you meant ;)

If the garage has no power connection, then you could

a) only charge the amount of electricity that comes from the garage roof,
b) only charge while the sun is shining, because otherwise there is no electricity at all.

This is madness cost-wise. You buy the photovoltaic system, you buy the wall box and get a few kWh charged on weekends (in the summer half-year also in the evenings, if you like). A garage roof is not large, hardly anything usable comes out of it.

Save your money, have a power connection installed and buy the electricity for charging. Dimensions cheaper and as a bonus, the garage door also opens without sun ;)