The Bachelor’s thesis deals with the renewable source of energy, namely with the biomass, and its utilisation in the Czech Republic. The thesis is divided in to two parts. The first part of thesis is theoretical. It summarises in form of literature search the general problems concerning the biomass. The literature search discusses the kinds of renewable sources, the division of biomass on individual types and the technologies for biomass utilisation. The first part is closed by chapter about the legislation and financial outline of the problem. The second part focuses on practical utilisation of biomass in the company producing pet food. The second part discusses the thermal requirements of company, the boiler and it’s equipment, store of b...