jaue2016079: Research on the Introduction of Independent Distributed Energy System for the Formation of Life Continuity District in the Metropolitan Area - Study at Oji district in Kita ward, Tokyo –

Abstract

Five years from the Great East Japan Earthquake, long-term energy supply-demand outlook was formulated last year promoting distributed energy systems over the future of up to 2030, expanding utilization of renewable energy, regional energy use and smart energy systems. In addition, revised Electricity Business Act was established including the separation of electrical power production from power distribution and transmission accelerating liberalization of energy industry. On the other hand, under the National Resilience Basic Plan formulated in 2014, Ministry of Land, Infrastructure and Transportation established a promotion business for the formation of a safe and secure Life Continuity District (LCD) after a major disaster including expected Nankai Trough earthquake. Under such background, a study is conducted for Oji, Kita-ward, a typical residential area in Northern Tokyo, to build a LCD with independent distributed energy systems. A long with the relocation of the factories, large-scale apartments have been built forming a huge residential complex in the district. The target area includes former sites of elementary and junior highschools, UR housing complex completed in 1976 (2,221 units) and private housing complex to be completed in 2018 (834 units). Life Continuity Performance (LCP) function is studied to be able to remain in the house maintaining life in the district even after a disaster such as earthquake, flood and fire. Effects on improving environmental load reduction and energy independence by an introduction of middle-pressure gas engine cogeneration systems to the subject apartments and redeveloped facilities are analyzed with flexible power and heat exchange among them. The study revealed adequate power supply capacity for the independent distributed energy system in residential areas as well as its energy saving and low-carbon effects at normal times and enhanced features of LCP function at emergency.