This paper is devoted to the investigation of shared DC Bus systems with common storage capacitor operating on utilization of regeneration energy of electrical drives of industrial robots. The system is elaborated for the connection of the central energy storage capacitor with DC Buses of several robot systems. Simulation of operation of such system has been made with the target to obtain some specific indicators of efficiency of the system at different number of shared DC Buses. Dimensioning of system’s parameters as well as some conclusions about necessary principle of control are presented. The results of experimental investigation are presented with the evident operational efficiency of the proposed system.