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According to IT Home on August 6, the integration of transportation and energy is the new focus of the "technological game" among countries in the transportation field after high-speed railways, new energy vehicles, and power batteries.

According to the news from Beijing University of Aeronautics and Astronautics (BUAA) today, Professor Ma Xiaolei's team from the School of Transportation Science and Engineering of BUAA has joined hands with scholars from Germany, Sweden and the United States toImportant research progress has been made in the field of integration of transportation infrastructure and renewable energy, published online in Nature Energy.

This study proposed for the first time a multi-source big data-driven bus infrastructure and distributed photovoltaic integration framework for the entire spatial scale of the city, relying on the deployment of distributed photovoltaic power generation and energy storage facilities at existing bus stations.Transforming traditional bus stations into sustainable, profitable, grid-friendly distributed energy hubs。

▲Bus stations and renewable energy integration, source: Beihang University

Liu Xiaohan, a doctoral student at Beihang University, is the first authorProfessor Ma Xiaolei of Beihang University is the corresponding author, and the School of Transportation Science and Engineering of Beihang University and the Key Laboratory of Intelligent Transportation Technology and Systems of the Ministry of Education are the only corresponding author units of the paper.

This study takes Beijing as a case study.The system collects high-precision trajectory data of more than 20,000 buses in Beijing, information data of all bus models, 24-hour solar irradiance and weather data throughout the year, and vector data of bus station buildings., looking towards the next 25 years, explores the economic benefits, environmental benefits and impact on the power grid of bus station energy hubs under the net zero emission vision and different photovoltaic subsidy policies.

The results show that the deployment of distributed photovoltaic power generation facilities alone can make electric busesThe average net charging load decreased by 23%., the net charging load during peak hours is reduced by 8.6%, and the two load indicators can be further reduced by 28% and 37% with the cooperation of energy storage facilities.

▲The impact of bus station energy hubs on power grid load

Without any photovoltaic subsidy policy, the deployment of distributed photovoltaic power generation facilities can generate cost-based 64% of net profit, and combined with energy storage facilities, the net profit can be reduced to 31% of the cost investment.

▲Economic benefits of bus station energy hubs

Under the net zero emission vision technology route, the deployment of distributed photovoltaic power generation and energy storage facilities can still reduce the carbon emissions of public transportation system electricity consumption by 5.7% in the next 25 years.

IT Home attached paper link: