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친환경에너지타운 내 850 kW급 태양광발전시스템 운영결과 분석
김득원(Kim Deukwon),허재혁(Heo Jaehyuk),김민휘(Kim Minwhi),이동원(Lee Dongwon) 한국태양에너지학회 2021 한국태양에너지학회 논문집 Vol.41 No.2
Global climate change demands a change in the social infrastructure, and the transformation of the energy system is indispensable to global trends. Jincheon, an eco-friendly energy town located in the innovative city of Chungbuk, is the first renewable energy-based town in Korea. Renewable energy sources, such as photovoltaic, solar thermal, geothermal, and sewage heat are combined to achieve energy sufficiency in the unit area. In this study, the operational results of an 850 kW photovoltaic system, among the renewable energy systems in Jincheon, were analyzed. Based on the operating data from 2018 to 2020, the capacity factor, generation benefit, and CO₂ reduction effect were studied. The capacity factor was 14.5%/yr, the generation benefit was 200.6 million won/yr, and the CO₂ reduction was 494.7 tons of CO₂ eq./yr. Through this study, it was confirmed that Jincheon could serve as a representative example of an eco-friendly energy town during this time of transition of the new energy system.
친환경에너지타운 내 신재생열에너지 시스템 운영결과 분석
김득원(Kim Deukwon),허재혁(Heo Jaehyuk),김민휘(Kim Minwhi),이동원(Lee Dongwon) 한국태양에너지학회 2021 한국태양에너지학회 논문집 Vol.41 No.2
The eco-friendly energy town of Jincheon is Korea’s first renewable energy-based energy self-sufficient town that utilizes multiple renewable energy sources, such as PV, solar thermal, geothermal, and sewage heat to achieve power and thermal energy independence in the unit region. In this study, the thermal energy system of Jincheon, which has been operating since 2017, was analyzed. The thermal energy system consists of a seasonal thermal energy storage connected to approximately 1,600 ㎡ of solar thermal collectors and a midnight thermal energy storage connected to approximately 150 RT heat pumps. Based on data from 2017 to 2020, the heat supply status, expected profits, and greenhouse gas reduction effects of the thermal energy system were analyzed. During the target period, 483 MWh of heating heat, 167 MWh of hot water, and 113 MWh of cooling heat were supplied on an annual average for the last three years. These findings confirmed expected profits of 95.6 million won/yr for hot heat and 1.3 million won/yr for cold heat. In addition, the renewable heat supply resulted in reduction of 156.7 tons of CO₂ eq./yr greenhouse gas.