The invention relates to a method for increasing biogas production of thermophilic anaerobe systems. More closely, a biomass containing a consortium comprising polymer-degrading, acetogenic and methanogenic microorganisms is inoculated with a microorganism culture before the start of or during biogas production. Said microorganism is a thermophilic, acetogenic, hydrogen producing bacterium. As an example, Caldicellulosiruptor saccharolyticus is applied. According to the invention production if methane containing biogas is significantly increased. The invention is useful for intensifying biogas production and thereby increasing its feasibility.Primjena termofilnih, anaerobnih, acetogenih bakterija koje proizvode vodik za pojačanu proizvodnju metana u sustavima za proizvodnju bioplina, naznačena time da se biomasa fermentira u anaerobnim i termofilnim uvjetima pomoću udru·enih mikroorganizama koji svojim djelovanjem razgrađuju polimere, acetogenih mikroorganizama i metanogenih mikroorganizama. Patent sadr·i jo® 9 patentnih zahtjeva.