Semiconducting organic materials have been evaluated for use in photovoltaic devices since the discovery of the organic heterojunction by Tang in 1986. At the time conversion efficiencies were limited to around 1%. Since this time there has been considerable progress in the field of OPV, with new record efficiencies now reaching over 13%, and material improvements which promise significantly enhanced sun stabilities. Along with these improvements come a host of challenges in terms of process scale-up, including but not limited to robustness, solvent choice, serial interconnection of cells and final encapsulation & connectorisation. With crystalline silicon as the major player in the PV industry, is there space in the market for organics based PV modules? This talk will describe the physics and technology behind organic photovoltaics , some current applications and some tantalising opportunities.