[en] Biomass can be broken down into three main categories: natural (wood, peat), anthropogenic (organic household waste) and animal based (mug). The calculated biomass resources for Estonia are rather significant and can be a big help in replacing fossil fuel based energy production. It is important not to neglect the biogas energy potential of our dumping grounds. The first dumping ground biogas production system in Estonia is taken into use in Tallinn at the Paeaeskuela dumping ground. Besides of producing clean energy, the system is important from the environmental aspect as well. Lot of wood waste is left rotten in our forests. Change in our logging technology would enable to consume this left over as well. In many places all over Estonia quite a few boilers have been converted to peat and wood waste burning al ready. Unfortunately, due to lack of experience and the needed knowledge, the result has not proved to be as good as it was expected