An increasing number of scavenging applications use dielectric polymers: for instance, on the heel of a shoe, behind the knee, on a navy buoy, etc. This emerging technology has the potential to be an alternative to traditional, well-known solutions using piezoelectricity or electromagnetism. Indeed, dielectric polymers are suitable for creating flexible and innovative structures working in a quasi-static range. Nevertheless, current analytical models of dielectric polymers in generator mode are too simple and not sufficiently predictive. This paper reports a more reliable method for modelling dielectric generators. This method is a tool for designing any plane structure. It can be used to calculate performance or to optimize a given structure. Moreover, it is modular and can be adapted to any kind of dielectric material and any plane structure. The method is illustrated on a biaxial plane generator comprising 3M's VHB 4910 polymer and conductive silver grease electrodes. Experiment data are provided to validate the analytical model and thus the whole method.