Distributed energy generation (DEG) is currently a promising direction in the energy sector. The article outlines the possibilities of using distributed generation for power supply to an industrial enterprise, and highlights the significant advantages of DEG for industry. As a result of the performed studies, calculations of economic indicators and comparison of delivery options for gas piston units of various capacities were carried out. The practicability of using mini-thermal power plants (mini-TPP) in the power supply system of the enterprise has been proved. The balance of active and reactive power of the generating equipment has been fulfilled. The calculation of the reduction of carbon dioxide emissions has been carried out.