Functioning of heat energy enterprises based on coal results in polluting the air with gases and dust. The evolution of heating systems by building cogenerative blocks reduces the harmful impact on the environment. Cogenerative devices powered by natural gas enable to produce simultaneously heat and electricity. This leads to smaller need for energy from conventional sources and thus contributes to reducing the amount of burned coal and emission of harmful substances, especially CO2 and dusts. The produced heat is transported to the existing heating system, while the energy can either be used for own needs or sold to the external network. As a result, costs of industry’s functioning become lower and new possibilities of obtaining heat recipients are created. The company’s competitiveness increases and due to investing in advanced technologies, the industry is perceived as innovative and modern.