The paper offers a method for developing a universal system of automated design of an optimal structure of autonomous distributed hybrid energy complexes (ADHEC) and a means of regulation of the energy balance therein, i.e. control of the power flows circulating in the said system. In general, the design of the optimal structure of ADHEC includes the following stages (subtasks): data research and creation of a statistical database of electric loads of consumers, of the wind speed in the region under consideration, of the hydroelectric potential of mountain and lowland rivers, and of the solar energy, as well as research and development of a database of converters of wind and water energy into electrical energy. The paper dwells on the task of designing the optimal structure of the distributed hybrid generation system that will ensure the desired level of power generation at a minimal cost and with necessary functional reliability.