The photovoltaic boiler produces more than enough hot water for a 5-person household most of the year. Connecting the photovoltaic modules is very cost-effective, as no electrician is required to set them up. And as no electricity is fed into the grid, the photovoltaic system does not require registration. As no mechanical components are required to operate the boiler, the photovoltaic boiler is also almost maintenance-free.

The photovoltaic boiler generates your hot water using photovoltaic electricity. Since the sun doesn't send you a bill, you can reduce your running costs for hot water preparation by around 80%. The following text compares the economic efficiency of photovoltaic boilers compared to classic electric boilers. The additional feeding of excess electricity into an 800 W micro PV inverter is also considered. The return on your initial investment is around 25% per year!