A Score-Based Evaluation Model for Rehabilitation of Existing Pumped Storage Hydropower Plant Construction

Hyung-Jun Park; Hong-Joon Shin; Dong-Hyun Kim; Seung-Oh Lee

doi:10.46604/ijeti.2023.12022

Authors

Hyung-Jun Park Department of Civil & Environmental Engineering, Hongik University, Seoul, Korea
Hong-Joon Shin Hydropwoer Research and Training Center, Korea Hydro & Nuclear Power Co., Ltd., Gyeongsangbuk-do, Korea
Dong-Hyun Kim Department of Civil & Environmental Engineering, Hongik University, Seoul, Korea
Seung-Oh Lee Department of Civil & Environmental Engineering, Hongik University, Seoul, Korea

DOI:

https://doi.org/10.46604/ijeti.2023.12022

Keywords:

pumped storage hydropower plant (PSHP), score-based evaluation, economic feasibility, energy storage, optimal location

Abstract

As the proportion of new and renewable energy increases, power control demands are becoming more frequent due to variability in power generation. As a complementary means against this, the pumped storage hydropower plants (PSHP) are attracting attention as energy storage systems (ESS), but it has high construction costs. Therefore, this study aims to improve the economic feasibility by developing the evaluation model of the existing infrastructure into an upper/lower dam suitable for PSHP. The concept of upper dam capacity is newly defined, and the evaluation index is constructed using normalization. A new evaluation system is presented for five factors: environment, stability, energy, capacity, and economy. Finally, it is tested in the pilot area in Korea. Several candidates, including the PSHP in operation, are found to have been distributed with higher scores. These results will help to satisfy the selection of candidates during the preliminary feasibility study phase, and programming them will enable more accurate and rapid assessment.

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