Energy balance investigation of a hybrid renewable energy system using seasonal thermal energy storage for eco-friendly energy town

摘要

Among the numerous effort to widespread renewable energy deployment in South Korea, an eco-friendly energy town integrated with a hybrid renewable energy system (HRES) has been constructed in Jincheon city. This real-scale experimental testbed has been operated for supplying a thermal energy as well as electric load to buildings over the course of a year. The town contains six public buildings, and the facilities incorporated with HRES. To configure the net plus energy town, an 850 kWp grid-connected photovoltaic (PV) system produced the electricity and the HRES managed the thermal energy for heating, cooling, and domestic hot water for buildings. This paper mainly describes the field tests and measurement results of annual and monthly source and site energy consumption and generation of the buildings and town. It was mainly found that the proposed town achieved 134.5% net plus energy town in South Korea.