Photovoltaic technology converts solar radiation into direct current electricity. A photovoltaic system consists of solar cells made of semiconductor materials. They are electrically connected to each other and mounted in a support structure - a solar panel.
Solar cells can be integrated in a roof as solar shingles. They are suited for home-owners who don´t want to have large solar panels on their roof. Installation of most solar shingles is easy and affordable, as they can be applied directly onto roofing felt.