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Development and Evaluation of the Hydropower Reservoir Rule Curve for a Sustainable Water Supply

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  • Youngje Choi

    (Department of Civil System Engineering, Ajou University, 206 Worldcup-ro Yeongtong-gu, Suwon 16499, Korea)

  • Eunkyung Lee

    (Department of Civil System Engineering, Ajou University, 206 Worldcup-ro Yeongtong-gu, Suwon 16499, Korea)

  • Jungwon Ji

    (Department of Civil System Engineering, Ajou University, 206 Worldcup-ro Yeongtong-gu, Suwon 16499, Korea)

  • Jaehwang Ahn

    (Department of Civil System Engineering, Ajou University, 206 Worldcup-ro Yeongtong-gu, Suwon 16499, Korea)

  • Taesoon Kim

    (Water Resources Management Center, Hangang Hydro Power Site, Korea Hydro & Nuclear Power Co., LTD., 3741 Yeoungseo-ro, Sinbuk-eup, Chuncheon-si 24202, Korea)

  • Jaeeung Yi

    (Department of Civil System Engineering, Ajou University, 206 Worldcup-ro Yeongtong-gu, Suwon 16499, Korea)

Abstract

The Seoul metropolitan area in the Han River basin is searching for sustainable water supply options after recently experiencing an extreme drought. Building a new reservoir is a common way to alleviate water shortage, but this comes at a great environmental cost. The South Korean government granted permission to add on a water supply function for the Hwacheon Reservoir, the largest hydropower reservoir in Korea, for the first time in the history. This study develops a new rule curve for the Hwacheon Reservoir to supply water and generate energy at the same time, considering the status of other reservoirs in the Han River basin. The simulation model uses two scenarios, with scenario 1 simulating historic operation and scenario 2 applying the deficit supply method. The new rule curve was formulated based on the results from scenario 2. Time-based and volumetric reliability increased by 33% and 4%, respectively, and resiliency more than doubled compared to the historic reservoir operation. This is the first case study in South Korea that demonstrates how to successfully integrate a water supply function into an existing hydropower reservoir. This study can be applied and extended to other river basins in an attempt to alleviate water shortages by adding new functions to existing reservoirs.

Suggested Citation

  • Youngje Choi & Eunkyung Lee & Jungwon Ji & Jaehwang Ahn & Taesoon Kim & Jaeeung Yi, 2020. "Development and Evaluation of the Hydropower Reservoir Rule Curve for a Sustainable Water Supply," Sustainability, MDPI, vol. 12(22), pages 1-11, November.
  • Handle: RePEc:gam:jsusta:v:12:y:2020:i:22:p:9641-:d:447385
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    References listed on IDEAS

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    1. Shilong Piao & Philippe Ciais & Yao Huang & Zehao Shen & Shushi Peng & Junsheng Li & Liping Zhou & Hongyan Liu & Yuecun Ma & Yihui Ding & Pierre Friedlingstein & Chunzhen Liu & Kun Tan & Yongqiang Yu , 2010. "The impacts of climate change on water resources and agriculture in China," Nature, Nature, vol. 467(7311), pages 43-51, September.
    2. Deepti Rani & Maria Moreira, 2010. "Simulation–Optimization Modeling: A Survey and Potential Application in Reservoir Systems Operation," Water Resources Management: An International Journal, Published for the European Water Resources Association (EWRA), Springer;European Water Resources Association (EWRA), vol. 24(6), pages 1107-1138, April.
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    1. Suwapat Kosasaeng & Nirat Yamoat & Seyed Mohammad Ashrafi & Anongrit Kangrang, 2022. "Extracting Optimal Operation Rule Curves of Multi-Reservoir System Using Atom Search Optimization, Genetic Programming and Wind Driven Optimization," Sustainability, MDPI, vol. 14(23), pages 1-14, December.

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