Laser scribing is a suitable structuring method for thin-film organic solar modules on PET-foil aiming the roll-to-roll processing. Results on laser scribing of a transparent electrode: highly conductive PEDOT:PSS, as an alternative to the conventionally used ITO are presented. The most important parameters in thin film laser processing are the wavelength, pulse duration, pulse energy, and spot-to-spot overlap. Effects and dependencies on material ablation by processing with laser radiation at several wavelengths (e.g. 355 nm, 532 nm, and 1064 nm) and pulse durations in the pico-, subnano-, and nanosecond range were studied. Organic test modules were produced using laser structuring. Optimal processing parameters and laser sources are discussed considering a feasible and rapid implementation into a roll-to-roll mass production system.