Multi-area demand-supply model analysis on electricity system reform for self-reliant spreading of solar photovoltaic and wind power

2020 Fiscal Year Final Research Report

• Project/Area Number: 19K15491
• Research Category: Grant-in-Aid for Early-Career Scientists
• Allocation Type: Multi-year Fund
• Review Section: Basic Section 31020:Earth resource engineering, Energy sciences-related
• Research Institution: Kyushu University
• Principal Investigator: Tatsuya Wakeyama 九州大学, エネルギー研究教育機構, 准教授 (70637777)
• Project Period (FY): 2019-04-01 – 2021-03-31
• Keywords: 再生可能エネルギー / 電力システム

Outline of Final Research Achievements

In this study, electric power market analysis was conducted by using a multi-area supply and demand model to overcome the difficulty of self-reliant spreading of variable renewable energy source. This result showed that Japanese wholesale electricity market price (day-ahead market) is able to be explained reasonably based on hourly marginal area price evaluated by using our model. This result showed the effectiveness to analyze the impact of electric system reform on market from the viewpoint of marginal price evaluated by our model. In addition, the impact of spreading variable renewable energy source on the electricity market and the advantage of interconnector between Japan and Korea were evaluated by the model in this study.

Free Research Field

再生可能エネルギー

Academic Significance and Societal Importance of the Research Achievements

本研究で構築したモデルを用いることで、発電設備の短期限界費用価格の観点から、市場における電力システムの転換施策の影響が分析できることが示された。本成果によって、今後電力システムの制度設計や国際連系などのインフラ計画立案を行う上で、定量的な評価に基づく議論が促進されることが期待される。変動型自然エネルギー普及の観点からも、定量的な市場価格の見通しをもとに、施策や設備計画の影響の分析が重要であることが示された。