With a photovoltaic system, almost every homeowner can now get his own electricity. The falling costs of these systems and the high costs of electricity from the electricity companies make the investment in a photovoltaic system more and more attractive. Saving energy is no longer sufficient for many homeowners. They want to generate their own electricity and thus become a lot more independent. New systems are increasingly being linked to a battery storage, making it possible to use the self-produced solar energy even in the evening or at night.
The exact advantage of a photovoltaic system depends on the location, the efficiency of the modules and the orientation and slope of the roof.