The subject of the project is comprehensive thermomodernisation of three public utility facilities, i.e. Kindergartens No. 1 in Bytów, Primary School in Gostków and Primary School in Pomysko Wielki, together with the modernisation of built-in lighting, and in the case of two public facilities, i.e. The aim of the project is to reduce the demand for final energy in 5 buildings of the Bytów commune as part of the project through thermal modernisation projects with the introduction of renewable energy sources and the modernisation of built-in lighting.The reduction of demand by consumers is the best method for reducing the generation of energy sources and energy generation in Bytów.