Biomass is a renewable energy source that has been used for many years. However, its usage as an electricity source in Spain is not well developed due to many causes, among which highlights the lack of knowledge about the available technical potential. This research sought to close this gap assessing the technical potential for electricity generation using forest wood biomass in rural areas of Catalonia. The study characterizes the amount and type of biomass available in Catalonian forests that can be used to produce electricity without going beyond the capacity of regeneration of the forest, as well as the state-ofthe- art efficiencies for commercially available biomass conversion to electricity technologies. The main outcomes of this research include the choice of a suitable technology and the evaluation of the technical potential for electricity generation in a sample of a rural Catalonian township. In particular, it was found that the forests of rural Catalonia yearly produce about 1.6 metric tons of biomass per hectare, with a heating value of 12.8 GJ per ton at 30% of moisture content.