System approach to the analysis of power complexes with renewable energy sources

The method of structuring and optimization of autonomous power complexes and its individual elements in the simultaneous use of renewable energy sources, energy resources and secondary energy resources is presented. Power complexes are presented as a set of power supply systems of lower hierarchical level, units, subsystems, components, united by a common purpose — to ensure energy saving up of objects. For comparative assessment of energy, thermodynamic and technical-economic efficiency it is suggested to submit energy complexes in the form of graphs of structural and functional models that reflect the overall structure of the energy complexes and the processes of transformation, transportation, storage and energy use.