Nowadays, the need for the use of alternative energy sources (except fossil fuels) as a fuel has shown a marked increase, especially in the sector of industrial production. This fact has been necessitated by the continuous rise of crude oil prices and by increased pressures to protect the environment, such as the Kyoto convention. Biomass of agricultural residues such as cotton stalks is considered as one of the alternative types of fuels. Cotton stalks were used as a fuel for household needs from the very early ages. The subject of this study is the determination of a company's factory supply system with cotton stalk biomass in order to use it as a fuel. This study has taken place within the framework of the feasibility of such a supply system. It was proved that the substitution of conventional fuel in the industry sector by cotton stalk biomass is feasible technically and economically.