The process of upscaling OPV from single cell roll coated devices to large area modules and finally to many hundreds of meters of interconnected multi cell devices are demonstrated.Roll-to-roll(R2R)manufacturing of OPV differs from the standard spin-coating technique in many ways that require a whole new set of skills and optimizations of materials,substrates and methodology.Upscaling can be costly in terms of materials use and we have therefore developed a number of small and intermediate scale coating/printing machines that bridge the gap to semi-industrial equipment.This talk will show how small scale R2R fabrication can be used to screen many new polymer inks and how procedures can be developed and qualified using a mini roll coater(MRC).Ink deposition and crucial morphological structure evolution can be studied using a small R2R machine developed for X-ray characterization studies.Finally large scale coating/printing of huge series of modules or hundreds of meters of modules for a solar park will be demonstrated.