In 2012, it is estimated the $145bn was invested in solar photovoltaic technology. Dye-Sensitized Solar Cells (DSC) are expected to play an increasing role in renewable energy generation over the next decade and beyond, but several practical issues need to be overcome to facilitate large-scale economic production. Fundamental research at Bangor has laid the ground for collaborative work with industry which has overcome several of the key production constraints in their manufacture, increasing production speed and efficiency and substantially reducing costs. As a result, we have developed a Technology Roadmap with a major multinational partner (TATA) which has led to significant investment in plant and to the production of pilot products in the form of photovoltaic roofs, currently undergoing outdoor testing.