2020 Fiscal Year Research-status Report
再生可能エネルギー電力の導入が日本卸電力市場の活性化に与える影響
| Project/Area Number |
20K13481
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| Research Institution | Kyoto University |
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Principal Investigator |
馬 騰 京都大学, 経済学研究科, 特定講師 (60869957)
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| Project Period (FY) |
2020-04-01 – 2022-03-31
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| Keywords | Electricity Market / Renewable Power / Spot Price / Realized Volatility / Electric Power Exchange |
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| Outline of Annual Research Achievements |
This study examines the impact of renewable energy power supply on reducing spot prices and on the realized price volatility in an imperfectly competitive market. Us- ing the hourly supply data of renewable energy sources collected from nine traditional electric power companies, and the spot price data collected from the Japan Electric Power Exchange (JEPX), this study investigates how the increase in renewable power generation affects spot prices and realized volatility in the JEPX. Our results suggest that renewable power production decreases market spot prices with regional differences, and the impact of price reduction depends on not only the renewable power generation, but also the stability of renewable power supply in different local electricity markets. Moreover, an electricity shortage decreases the price-reducing effect on renewable power in the JEPX due to the substitution of thermal power for renewable power. Furthermore, we investigate annual differences in the impact on spot prices, and find that the effects are gradually enhanced as electricity market reform deepened. However, the increase in renewable power production has positive effects on realized volatility in the nationwide market. Our results indicate that increasing renewable power generation has both positive and negative impacts on realized volatility for dif- ferent areas in Japan; the opposite volatility effects are due to not only the stability of renewable electricity supply, but also renewable power generation being curtailed or transmitted to other areas.
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| Current Status of Research Progress |
Current Status of Research Progress
1: Research has progressed more than it was originally planned.
Reason
1本目の論文が作成し、投稿している(Energy Economics)。
2本目の論文がスムーズに進行している。
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| Strategy for Future Research Activity |
再エネ電力が隣接地域のおろし電力市場の影響を明らかにする。
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| Causes of Carryover |
国際会議の参加に使用: 1）International Energy Workshop (14-17 June, 2021); 2) European Association of Environmental and Resource Economists Conference 2021 (23-25 June, 2021)
設備購入
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