jaue2015041: Regional Energy Network Construction for More Resilient and Secure Community in Tokyo

Abstract

Independent distributed cogeneration is recognized as resilient, decentralized and diversified supply of power with effects on energy conservation, relaxation of global warming and peak power demand in The Fourth Basic Energy Plan approved by the Cabinet in April, 2014. On the other hand, from the assumed damage by the epicentral earthquake of the Kanto region, large-scale disaster is feared especially in metropolitan area. Therefore, establishment of safety and security by the BCP-enabled distributed energy supply system has become an important issue in the area. From above background Oyama station surrounding area of Itabashi ward in Tokyo where local government and service functions are concentrated was designated as a model to be examined for its feasibility. The study calculated the effects of reducing environmental load by 40% and energy independence of 90% with introduction of self-supporting distributed energy network to the public facilities including Itabashi ward office and large-scale hospitals with flexible energy supply among them. Future direction for a wide-area energy network was also examined by investigating a plan to build a new public utility tunnel in company with the construction of a BCP compatible road for continuing medical services at the time of disaster.