Volume 13: Low Carbon Cities and Urban Energy Systems: Part II

Logistic optimization of the mobilized and distributed battery for improving the renewable energy penetration in urban energy systems Yamin Yan, Qi Liao, Haoran Zhang, Yongtu Liang

Abstract

High penetration of renewable energy and the random real-time charging of large-scale electric vehicles are challenging to traditional urban power system technically and economically. This urgently calls for accelerating the development of smart energy solutions to improve the resilience of urban power system, and mobilized and distributed battery is believed to have the potential to provide the solution due to the advantages of high energy density, fast response, and convenient installation. Aiming at effectively satisfying the enormous urban power demand and realizing the cost-effectiveness and environmental-sustainability of power supply, this paper develops a novel method to achieve logistics and scheduling optimization of batteries at various temporal and spatial scales between renewable energy power plants (REPs) and cities. The objective function is to minimize the total cost of battery purchase and transportation considering the railway transport capacity, battery balance and other technical constraints. Based on the forecast results of available supply and demand of fully charged batteries in each REP and city, the detail battery transportation route and volume can be obtained. Finally, the proposed approach is applied to six cities in China, and the results demonstrate that the battery logistics and scheduling model can effectively improve the penetration of renewable energy, thereby realizing the low-carbon development of urban energy system.

Keywords Logistic optimization, mobilized and distributed battery, low-carbon development, urban energy systems