Abstract
Abstract. Taking the lessons from the Great East Japan Earthquake (GEJE) occurred in March 2011, the nuclear-reliant energy policy in Fukushima Prefecture has been transformed to other energy (fossil fuel, renewable energy) to make their energy system with better resilience toward the future disaster. As the increased concern on the Global Warming, Fukushima Prefecture made more efforts on the promotions of the renewable energy than the fossil fuel power. Nine years has passed since the GEJE, however, the spatial variation of the energy supply facilities is not clarified and the resilience of its energy system has not been evaluated. Therefore, this study focused on spatial analysis on these energy supply facilities before and after the GEJE and discussing the energy resilience in Fukushima Prefecture toward future disasters or climate events. This approach will be helpful for policy makers to spatiotemporally evaluate the sustainable development on the energy system.
Highlights
The Great East Japan Earthquake (GEJE) occurred in March 2011, which led to the tsunami that seriously damaged the infrastructures in Fukushima Prefecture
This study aims to clarify the development and the spatial distribution of fossil fuels (FFs) power and renewable energy facilities before and after the GEJE, and to discuss the energy resilience in Fukushima Prefecture toward future disaster or climate events based on an indicator of the needed operating ratio of power plants
To clearly show the development of power generation before and after the GEJE, we summarized the gridded differences in the power generation capacity between 2020 and 2010 with a 1 ×1 km resolution mesh (Figure 5)
Summary
The Great East Japan Earthquake (GEJE) occurred in March 2011, which led to the tsunami that seriously damaged the infrastructures in Fukushima Prefecture. The Fukushima Daiichi nuclear disaster reinforced the damage and highly impacted the energy policy in Japan. Japanese government started to substitute fossil fuels (FFs) and renewable energy for nuclear power and became more dependent on import and consumption of FFs. As a result, the absolute value of elasticities of oil consumption by some economic sectors to oil prices has reduced after the disaster as the increased dependency on oil consumption, which endangered the energy security in Japan (Taghizaden-Hesary et al, 2017). It is a scheme that make the power companies to buy the renewable energy from the facilities owners at a reasonable price in a period designated by the Japanese government, which is expected to transform the nuclear-reliant energy policy to renewable energy in Japan. The dynamics of the linkages among costs of electricity generation via crude oil, natural gas, and coal for the periods before and after the Fukushima accident were analysed and the result showed changes in Japanese energy policy impacted by this accident (Aruga, 2020)
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