Solar Panel Tiles

Who should I contact for Solar Panels?
I live in Edinburgh and was wondering if anyone knows of a company up here who fit solar panels to tiled roofs? The kind I require return any un-used energy to the grid and the user is paid. Thanks
I used a company called Thomas Martin Roofing. They are a Fife based company but travelled to Edinburgh. Try the website www.thomasmartinroofing.webs.com. The type of Solar Panel you refer to is called C21e and they are pretty good if i dont say so myself. The solar tiles blend in with the normal tiles and there is no noise from them generating.