There are four Scolar Information Sheets covering this area for Key Stage 4. They are:- The Photovoltaic (PV) System PV modules - What are they made of? Basic PV material Advanced PV material Alternatively, you can jump ahead to any of these Information sheets:- Photovoltaics - How does it work? Photovoltaics - When and where is it used? Photovoltaics - How much does it cost? Perhaps though you're in the wrong area - maybe you should try Key Stage 2 or Key Stage 3