著者

Yoshiki YAMAGATA Hajime SEYA

出版者

ISCM Forum

雑誌

Innovation and Supply Chain Management (ISSN:21870969)

巻号頁・発行日

vol.7, no.3, pp.75-82, 2013-09-30 (Released:2014-04-02)

参考文献数

21

被引用文献数

4 8

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This paper extends the concept of our proposed (Yamagata and Seya, 2012) community-based disaster resilient electricity sharing system (DRESS) as a complement or alternative to a feed-in tariff(FiT) to achieve CO2-neutral transportation in cities. In our proposed system, electricity generated from widely introduced solar photovoltaic panels (PVs) is stored in the“cars not in use ”in a city. For example, almost half of the cars in the central Tokyo metropolitan area are used only on weekends and thus are kept parked during weekdays. These cars represent a huge new potential storage depot if they were replaced by electric vehicles (EVs), that is, they could be used as storage batteries in a V2G system. The present study extends our proposed system in the following two senses. Firstly, different from Yamagata and Seya (2012), this paper uses actual ground area data (footprint) of each building to estimate PV supply, which may lead to more accurate estimations. The results show that although the entire electricity surplus (PV supply minus demand) could be stored without waste if 12% of the EVs not in use were utilized as storage batteries at an aggregate (city) level,there exist significant regional mismatches at the local district level. Hence secondly, based on the geographical PV supply-demand estimates, this paper analyses the possibility of local electricity sharing by looking at the geographical distribution of high-storage potential areas using a spatial clustering technique. This paper extends the concept of our proposed (Yamagata and Seya, 2012) community-based disaster resilient electricity sharing system (DRESS) as a complement or alternative to a feed-in tariff(FiT) to achieve CO2-neutral transportation in cities. In our proposed system, electricity generated from widely introduced solar photovoltaic panels

著者

Thomas BRUDERMANN Romana RAUTER Yoshiki YAMAGATA

出版者

ISCM Forum

雑誌

Innovation and Supply Chain Management (ISSN:21870969)

巻号頁・発行日

vol.7, no.3, pp.83, 2013-09-30 (Released:2014-04-02)

参考文献数

63

被引用文献数

1 4

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The current discussion on urban resilience is dominated by infrastructural and technological considerations. Although behavioral reactions to extreme events very well impact the overall resilience of urban systems, they are not very well considered. In order to close this gap, we review relevant insights on human decision making and collective dynamics, and propose a framework for studying behavioral aspects in the context of urban resilience. We findthat human decision making is often based on simple ‘heuristics'. Especially in emergency situations, e.g. during or in the aftermath of extreme events, simple decision making rules replace careful and rational assessment of different choice alternatives. However, collective reactions to extreme events are note only dependent on individual decisions, but are shaped by complex interactions of various system elements, including the natural and manmade environment, people's interactions with the environment, and people's interactions with each other. For a proper anticipation of possible collective reactions and their impact on urban systems, we suggest agent-based simulations which utilize decision making insights and interaction data gathered in experiments and in the field. The current discussion on urban resilience is dominated by infrastructural and technological considerations.