Solar PV (or photovoltaics) panels generate electricity from sun light. Photovoltaic panels and tiles are made up from solar cells, which are made from silicon, one of the most abundant elements on Earth. The photovoltaic cells are wired together inside the panels and produce direct qcurrent (DC) when exposed to light.
Photovoltaic panels produce energy from daylight, not direct sunlight, so they still produce electricity on a cloudy or overcast day. The DC electricity produced is normally converted into alternating current (AC) for use in homes and buildings, by an inverter situated in the loft or near a building’s fuse board.
For more iformation on Photovoltaics see:
Solar PV.co.uk