Rooflight/Skylight Integrated With Photovoltaic Glass

Hi there, I'm on a years work experience as part of my Industrial Design course at a company that designs and manufactures bespoke rooflights in the UK. We are currently looking at providing a rooflight with photovoltaic glass which would promote a greener product. I wondered if anyone could link me to any contacts who manufacture photovoltaic glass [I know of Romag, UK] and supply it on a small scale so i could carry out some testing or any other useful contacts in the field of photovoltaics? Cheers, Martyn.