2022-06-19 シンガポール国立大学(NUS)
この結論は、電気自動車(EV)充電インフラに対するショック(突然の予期せぬ出来事)の影響を調査した結果、出されたものです。
EV充電ネットワークの一部に衝撃が加わると、予想外の大きな波紋が広がる可能性があることを突き止めました。その結果、インフラに対する信頼やEVの使い勝手が損なわれ、普及に向けた取り組みが頓挫する可能性があることがわかりました。 本研究成果は、2022年6月9日付の学術誌「Nature Communications」に掲載されました。
<関連情報>
- https://news.nus.edu.sg/inadequate-charging-networks-could-thwart-ev-adoption-goals/
- https://www.nature.com/articles/s41467-022-30848-w
都市の公共電気自動車充電インフラストラクチャの洪水に対する回復力 Resilience of urban public electric vehicle charging infrastructure to flooding
Gururaghav Raman,Gurupraanesh Raman & Jimmy Chih-Hsien Peng
Nature Communications Published:09 June 2022
DOI:https://doi.org/10.1038/s41467-022-30848-w
Abstract
An adequate charging infrastructure is key to enabling high personal electric vehicle (EV) adoption rates. However, urban flooding—whose frequency and intensity are increasing due to climate change—may be an impediment. Here, we study how geographically-correlated outages due to floods impact public EV charging networks in Greater London. While we find no appreciable impact on the ability of battery EVs to serve typical urban driving behaviors, we observe disproportionate stresses on chargers both near, and surprisingly significantly farther from, the flooded regions. For instance, we find over 50% increase in charger utilization and 260% increase in the distance to the nearest available charger in parts of Greater London over 10 km away. Concerningly, the impact is most concentrated on already-stressed sections of the network, underscoring the infrastructure’s vulnerability. Finally, we develop and evaluate four strategies for city planners to enhance the flood resilience of cities’ public EV charging networks.