Seasonal Impact on the Storage Capacity Sizing in a Renewable Energy System Under the Condition of Safe Operation

Renewable energy sources (RESs) are now increasing as an essential portion of the power generation system. The main advantage of these RESs is environmental friendliness. However, the instability of power generation by weather conditions can highlight power quality and stability issues when connected to the main power grid. To accommodate the effects of power fluctuations, the energy storage system is an important addition to any power system with renewable power generators and dynamic power loads. Energy storage systems can help in supplying/absorbing power in a situation of excess/shortage of power. The seasonal patterns of power demand have reduced the stability of the power grid even leading to power blackouts. As a result, the optimal size of the storage system is required for efficient storage utilization. This paper proposes an optimization problem that identifies the optimal storage capacity for each season while preserving the safety conditions of the power system. Finally, the feasible solution of the optimization problem is found using Linear Programming Solver in MATLAB.