Effects of Photovoltaic Generation System on the Contract Capacity Selection of Time-Of-Use Rate Industrial Users

This paper investigates the effects of photovoltaic generation system (PVGS) on the selection of contract capacities for time-of-use (TOU) rate industrial users. A benefit cost ratio (BCR) was served to evaluate the economic benefits of PVGS in TOU rate industrial users. Evolutionary programming (EP) is applied to solve the optimal installation capacity of PVGS and the optimal contract capacities for TOU rate industrial users. The impacts of PVGS installation capacity on the selection of contract capacities for TOU rate industrial users were evaluated. To apply the EP to solve the previous problem, an individual which was composed of PVGS installation capacity and TOU rate user contract capacities, was defined. A fitness function evaluates the economic benefits of PVGS was applied to calculate the fitness of individual. After that EP starts to calculate the optimal PVGS installation capacity and TOU rate user contract capacities. Through the cooperation of agents called individuals, the near optimal solution of the previous problem can be effectively reached. Finally, a numerical example was served to demonstrate the feasibility of the new approach, and EP solution quality and computation efficiency were compared to those of other algorithms.