You can install photovoltaic panels on your roof, which can produce electrical energy. For a household is recommended to install 3 to 5 kWp solar system, which require 25 to 50 sq.m. roof space or 12 to 22 pieces solar modules.
It is possible to use the produces energy for:
- Feeding into the electrical distribution grid,
- Only for selfconsumtion by using storage system (batteries)
- Selfconsumtion and feeding the surplus energy into the grid