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Analysis of the Impact of the 8th Basic Plan for Long-term Electricity Supply and Demand on the District Heating Business Through Optimal Simulation of Gas CHP

가스 열병합발전 최적 시뮬레이션 분석을 통한 집단에너지 사업자에 미치는 8차 전력 수급계획의 영향 분석

  • Kim, Young Kuk (Department of New Energy Engineering, Seoul National University of Science & Technology) ;
  • Oh, Kwang Min (Department of New Energy Engineering, Seoul National University of Science & Technology) ;
  • Kim, Lae Hyun (Department of Chemical & Biomolecular Engineering, Seoul National University of Science & Technology)
  • 김영국 (서울과학기술대학교 신에너지공학과) ;
  • 오광민 (서울과학기술대학교 신에너지공학과) ;
  • 김래현 (서울과학기술대학교 화공생명공학과)
  • Received : 2018.07.17
  • Accepted : 2018.08.31
  • Published : 2018.10.01

Abstract

To respond effectively to climate change following the launch of the new climate system, the government is seeking to expand the use of distributed power resources. Among them, the district heating system centered on Combined Heat and Power (CHP) is accepted as the most realistic alternative. On the other hand, the government recently announced the change of energy paradigm focusing on eco-friendly power generation from the base power generation through $8^{th}$ Basic Plan for Long-term Electricity Supply and Demand(BPE). In this study, we analyzed the quantitative effects of profit and loss on the CHP operating business by changing patterns of the heat production, caused by the change of energy paradigm. To do this, the power market long-term simulation was carried out according to the $7^{th}$ and $8^{th}$ BPE respectively, using the commercialized power market integrated analysis program. In addition, the CHP operating model is organized to calculate the power and heat production level for each CHP operation mode by utilizing the operating performance of 830MW class CHP in Seoul metropolitan area. Based on this, the operation optimization is performed for realizing the maximum operating profit and loss during the life-cycle of CHP through the commercialized integrated energy optimization program. As a result, it can be seen that the change of the energy paradigm of the government increased the level of the ordered power supply by Korean Power Exchange(KPX), decreased the cost of the heat production, and increased the operating contribution margin by 90.9 billion won for the 30 years.

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