The files attached contain a model coupling MATLAB and HOMER in order to optimize small-scale polygeneration systems for minimum lifetime costs. A publication draft titled "Techno-economic optimization model of polygeneration hybrid energy storage systems using biogas and batteries" has been submitted, where the model is further explained. The dataset contains: - 4 ".homer" files, which start the execution of the model. 2 are for the optimal polygeneration case, 2 are for the reference case. - 3 ".m" matlab files containing the Matlab code, where a significant part of the model is computed. - 2 Excel files: 1 containing electricity demand data, 1 containing biomass availability data.