Bilevel programming approach for the quantitative analysis of renewable portfolio standards considering the electricity market

Kyuhyeong Kwag, Hansol Shin, Hyobin Oh, Sangmin Yun, Tae Hyun Kim, Pyeong-Ik Hwang and Wook Kim

Energy, 2023, vol. 263, issue PD

Abstract: Many countries have introduced renewable portfolio standard (RPS) with market systems that allow transactions of renewable energy certificates (RECs) to foster investment in renewable energy (RE). The main objective of this study is to estimate long-term REC prices based on marginal-cost pricing and analyze the RPS system quantitatively. In the proposed method, a mathematical model is constructed as bilevel programming that considers the REC and electricity markets simultaneously, and the KKT conditions are used to solve the nonlinearity of the constructed model. The proposed method has the following advantages: (1) it determines the optimal capacity of RE to implement the RPS system, (2) it derives the long-term marginal cost of the REC market, and (3) it can be used to perform quantitative analyses of the RPS system. Simulation studies were performed in South Korea, and the results indicated that solar photovoltaic accounted for a major portion of the new investment. The marginal cost of the REC market and the impact of the RPS systems on retail electricity prices are estimated to be USD 14.01/REC and USD 4.59/MWh in 2031, respectively (in 2021 USD). Our study provides appropriate price signals to the market participants and serves as a reference for policymakers.

Keywords: Renewable portfolio standard; Renewable energy certificates; Marginal cost; Renewable energy sources; Bilevel programming; Renewable energy policy (search for similar items in EconPapers)
Date: 2023
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (2)

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Persistent link: https://EconPapers.repec.org/RePEc:eee:energy:v:263:y:2023:i:pd:s0360544222028997

DOI: 10.1016/j.energy.2022.126013

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