New VDE recommendations say 800W on Schuko is tolerated. Wieland is of course better. That’s btw not solar panel capacity but inverter capacity, you can have 2kW on your balcony as long as you’re not feeding more than 800W into the net you don’t need any permits no need to contact your utility no nothing.
What you should pay attention to as a renter without already existing balcony outlet though is your landlord: They generally don’t like it when you drill holes through exterior walls, window frames, whatnot. Use window feed-through cables (for the PV connections, not the 220V), or dish out (quite a bit) of money to have it done properly (after talking to the landlord). At which point yes you want a Wieland outlet they’re maybe 20 bucks, what’s going to cost money is the electrician.
New VDE recommendations say 800W on Schuko is tolerated. Wieland is of course better. That’s btw not solar panel capacity but inverter capacity, you can have 2kW on your balcony as long as you’re not feeding more than 800W into the net you don’t need any permits no need to contact your utility no nothing.
What you should pay attention to as a renter without already existing balcony outlet though is your landlord: They generally don’t like it when you drill holes through exterior walls, window frames, whatnot. Use window feed-through cables (for the PV connections, not the 220V), or dish out (quite a bit) of money to have it done properly (after talking to the landlord). At which point yes you want a Wieland outlet they’re maybe 20 bucks, what’s going to cost money is the electrician.