Design Optimization and Comparative Analysis of 100% Renewable Energy Systems for Residential Communities in Typical Areas of China When Considering Environmental and Economic Performance

Sustainability

Jiaqi Yuan¹  Xiaofei Chen¹  Wenjie Gang¹  Yu Guo²  Jingwen Zheng²  Zaixun Ling²  Wanli Cai²  Yibo Cui² 

[1] School of Environmental Science and Engineering, Huazhong University of Science and Technology, Wuhan 430074, China;State Grid Hubei Electric Power Research Institute, Wuhan 430015, China;

关键词: design optimization;    100% renewable energy system;    economic performance;    environmental performance;    solar energy;    biomass energy;   

DOI  :  10.3390/su131910590

来源: DOAJ

【 摘 要 】

A 100% renewable energy system (RES) satisfies a user’s energy demand using only renewable energy, which is an important energy supply in China given that the government aims to realize carbon neutrality by 2060. The design and operation of 100% RESs in different areas would vary significantly due to the impacts of climates and geographical features. This study aimed to investigate the economic and environmental performance of 100% RESs for residential communities in different areas of China. In total, 30 typical cities were chosen based on the climate characteristics and the availability of renewable energy resources. The genetic algorithm was selected to obtain the optimal design of the 100% RES in each area by taking the minimum total annual cost and the minimum CO₂ emissions as optimization objectives. The results showed that 100% RESs were dominated by solar energy and biomass. The investment could be recovered in 8 years if the economic performance was optimized in most areas, but the payback period became longer when the 100% RES was optimized when considering environmental performance. The emissions could be reduced by 86–99% for CO₂ and 64–97% for NO_x. The results of this study would provide data support for the investment of 100% RESs in rural or suburban areas of China.

【 授权许可】

Unknown