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The true economic value of supply-side energy storage in the smart grid environment – The case of Korea

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  • Jeon, Wooyoung
  • Mo, Jung Youn

Abstract

With the rapid increase in variable renewable sources in the power system, storage capacity is being considered as an effective solution, because its flexible charging-discharging characteristics enable the reduction of the variability of these sources. However, the value of energy storage has been estimated mostly based on arbitrage benefit, and this does not reflect the true contribution of energy storage to the power system, especially when it is integrated with high levels of wind generation. This study analyzes a more complete set of contributions made by energy storage toward reducing the total cost of supplying electricity to customers. A simulation based on a stochastic form of multi-period Security-Constrained Optimal Power Flow (SCOPF) is used to reflect the stochastic characteristics of wind resources. The results show that in addition to the arbitrage benefit, energy storage can generate an additional economic value by 1) reducing the variability of wind generation; 2) adopting more wind generation that is otherwise wasted because of high variability, and 3) lowering the peak capacity needed to meet system adequacy. Moreover, the results indicate that the benefit of energy storage is larger with higher wind generation capacity.

Suggested Citation

  • Jeon, Wooyoung & Mo, Jung Youn, 2018. "The true economic value of supply-side energy storage in the smart grid environment – The case of Korea," Energy Policy, Elsevier, vol. 121(C), pages 101-111.
    • Handle: RePEc:eee:enepol:v:121:y:2018:i:c:p:101-111
    DOI: 10.1016/j.enpol.2018.05.071
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    References listed on IDEAS

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    Cited by:

    1. Jafari, Mehdi & Botterud, Audun & Sakti, Apurba, 2022. "Decarbonizing power systems: A critical review of the role of energy storage," Renewable and Sustainable Energy Reviews, Elsevier, vol. 158(C).
    2. Wooyoung Jeon & Sangmin Cho & Seungmoon Lee, 2020. "Estimating the Impact of Electric Vehicle Demand Response Programs in a Grid with Varying Levels of Renewable Energy Sources: Time-of-Use Tariff versus Smart Charging," Energies, MDPI, vol. 13(17), pages 1-22, August.
    3. Mena, R. & Escobar, R. & Lorca, Á. & Negrete-Pincetic, M. & Olivares, D., 2019. "The impact of concentrated solar power in electric power systems: A Chilean case study," Applied Energy, Elsevier, vol. 235(C), pages 258-283.
    4. Wooyoung Jeon & Chul-Yong Lee, 2019. "Estimating the Cost of Solar Generation Uncertainty and the Impact of Collocated Energy Storage: The Case of Korea," Sustainability, MDPI, vol. 11(5), pages 1-18, March.

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