KSCE Journal of Civil and Environmental Engineering Research (대한토목학회논문집)

Korean Society of Civil Engeneers (대한토목학회)
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A Study on the Carbon Neutrality Scenario Model for Technology Application in Units of Space

공간 단위 탄소중립 기술적용 시나리오 모형(CATAS) 연구

  • 박신영 (국가녹색기술연구소 기술분석센터) ;
  • 최유영 (한국환경연구원 환경평가본부) ;
  • 이민아 (국가녹색기술연구소 기술분석센터)
  • Received : 2022.11.11
  • Accepted : 2023.01.18
  • Published : 2023.02.01
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Abstract

'Carbon-neutrality Assessment based on Technology Application Scenario (CATAS)' provides an analysis of greenhouse gas (GHG) reduction effectiveness when applying carbon-neutrality technology to areas such as energy conversion, transportation, and buildings at certain spatial levels. As for the development scope of the model, GHG emission sources were analyzed for direct GHG emissions, and the boundary between direct and indirect emissions are set according to the spatial scope. The technical scope included nine technologies and forest sinks in the transition sector that occupies the largest portion of GHG emissions in the 2050 carbon neutral scenario. The carbon neutrality rate evaluation methodology consists of four steps: ① analysis of GHG emissions, ② prediction of energy production according to technology introduction, ③ calculation of GHG reduction, and ④ calculation of carbon neutrality rate. After the web-based CATAS-BASIC was developed, an analysis was conducted by applying the new and renewable energy distribution goals presented in the ｢2050 Greenhouse Gas Reduction Promotion Plan｣ of the Seoul Metropolitan Government. As a result of applying solar power, hydrogen fuel cell, and hydrothermal, the introduction of technology reduced 0.43 million tCO2eq of 1.49 million tCO2eq, which is the amount of emissions from the conversion sector in Seoul, and the carbon neutrality rate in the conversion sector was analyzed to be 28.94 %.

'탄소중립 기술적용 시나리오 모형 (CATAS; Carbon-neutrality Assessment based on Technology Application Scenario)'은 공간 단위에서 에너지전환, 수송, 건물 등 분야에 탄소중립 기술을 적용했을 경우 온실가스 감축 효과성 분석을 제공한다. 모형의 개발범위는 온실가스 배출원은 온실가스 직접배출량 대상으로 분석하며, 공간적 범위는 직접·간접배출의 경계를 공간적 범위로 설정하였다. 그리고 기술적 범위는 2050 탄소중립 시나리오에서 온실가스 배출량이 가장 큰 전환부문의 9개 기술과 산림 흡수원을 포함하였다. 탄소중립률 평가 방법론은 ①온실가스 배출현황 분석, ②기술도입에 따른 에너지생산량 예측, ③온실가스 감축량 산정, ④탄소중립률 산정까지 4단계로 이루어져있다. 웹기반 CATAS-BASIC을 개발 한 후 서울시의 ｢2050 온실가스 감축추진계획｣상 제시된 신재생에너지 보급목표를 적용하여 분석을 실시하였다. 태양광·수소연료전지·수열을 적용한 결과, 서울시의 전환부문 배출량인 1.49백만 tCO2eq 중 기술도입으로 0.43백만 tCO2eq 감축하여 전환부문 탄소중립률은 28.94 %로 분석되었다.

Keywords

Acknowledgement

본 연구는 국가녹색기술연구소 주요사업 연구과제([R2210501] 공간단위 탄소중립 기술적용 시나리오 모형 연구)에 의하여 수행되었습니다.

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