Adjusting the Output Fluctuation of Renewable Energy Outside the Region in the District Energy System

Part 1-Examination of the Possibility of Power Imbalance Mitigation in Biogas Power Plants

Abstract

In addition to the district heat supply, a local energy system has been developed in the redevelopment area in front of the Shin-Sapporo Station in Sapporo City, aimed at achieving both urban disaster prevention and excellent environmental performance by installing private lines and high-efficiency cogeneration generators (CGS) and using waste heat from power generation. One of the features of this system is that a CGS capable of power backflow is installed, making it possible to link with renewable energy sources outside the region. In this report, we focus on power imbalance mitigation, which is one of the functions of power backflow, and describe the results of an analysis of the reduction of imbalance at a renewable energy biogas power plant in town A outside the region.