@[email protected] @kottke you are feeding all unused electricity to the national grid.

Therefore there are 3 basic restrictions for using these "Balkonkraftwerk":
- you need to have a meter which can't run backwards
- your system must not generate more than 800w/h peak
- you need to register the system which is very basic and the utility provider can't deny the registration

With a setup like this you do not get any money for the electriciy you are feeding to the national grid.