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Study on Reduction of Curtailment of Renewable Generation based on Green Hydrogen Sector Coupling

그린수소 기반 섹터 커플링 통한 재생에너지 출력제한 경감효과 연구

  • Received : 2022.02.17
  • Accepted : 2022.03.29
  • Published : 2022.06.25

Abstract

The Korean government announced the "1st Basic Plan for the Transition to Hydrogen Economy" in 2021 and declared the establishment of a hydrogen industry ecosystem by 2040. To build a low-carbon power system, resources that can efficiently accommodate renewable energy are required, and green hydrogen is considered a potential solution. This study analyzed the economic feasibility of green hydrogen-based sector coupling to reduce curtailment of renewable generation in the Jeju power system by 2025 under the scenario of with or without HVDC#3. The result showed that HVDC#3 significantly reduced the frequency of curtailment from 16.1% to 3.0%. In addition, green hydrogen-based sector coupling was an economically feasible option as result showed an IRR of 4.86% when HVDC#3 was connected and 11.45% when it was not under the condition of achieving 50% curtailment reduction. This study shows that the higher the level of renewable energy deployment, the more delayed the HVDC connection between Jeju and the main land, and the lower the SMP, the more economically feasible the green hydrogen-based sector coupling is. Furthermore, this study suggests that the policy goal of completely reducing curtailment is not economically efficient.

Keywords

Acknowledgement

본 연구는 2021년도 전남대학교 경영전문대학원 학술장학재단의 지원을 받아 수행되었음.

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