Its definitely worth it to use all available space.
Still, it definitely cannot generate enough to bring you through the german winter.
Some example numbers I have read: A 10kWp solar system that generates up to 1,400 kWh in a summer month will only provide about 200 kWh in December.
Still, it definitely cannot generate enough to bring you through the german winter. Some example numbers I have read: A 10kWp solar system that generates up to 1,400 kWh in a summer month will only provide about 200 kWh in December.