Features of Using Optimization Models for Capacity Expansion Planning in the Power Systems with the Increasing Role of Renewable Energy Sources

Current trends in the development of optimization capacity expansion models for planning the development of power systems with the active growth of renewable energy sources (RES) are considered. The results of forecasting the conditions of inter-fuel competition in the Unified Power System (UPS) of Russia as well as a comprehensive assessment of energy and economic effects of various scales of RES development using the EPOS optimization model are presented.