間欠性再生可能エネルギー大量導入時における出力抑制量・蓄電池導入に関する一考察

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  • 大槻 貴司
    （一財）日本エネルギー経済研究所アジア太平洋エネルギー研究センター
  • 小宮山 涼一
    東京大学大学院工学系研究科附属レジリエンス工学研究センター
  • 藤井 康正
    東京大学大学院工学系研究科原子力国際専攻

書誌事項

タイトル別名
  • Study on Surplus Electricity under Massive Integration of Intermittent Renewable Energy Sources
  • 間欠性再生可能エネルギー大量導入時における出力抑制量・蓄電池導入に関する一号察
  • カンケツセイ サイセイ カノウ エネルギー タイリョウ ドウニュウジ ニ オケル シュツリョク ヨクセイリョウ ・ チクデンチ ドウニュウ ニ カンスル イチゴウサツ

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抄録

In order to address climate change and energy security issues, intermittent renewable energy sources, such as solar photovoltaic (PV) and wind power, are gaining great attentions. However, due to their variability and surplus electricity, the expansion of these renewables is an important challenge for power grid management. Various treatment measures, such as rechargeable battery, curtailment and back-up generator, are considered necessary for the physical integration of intermittent renewables to construct efficient and reliable power generation mix. In this context, the authors employ a high time-resolution optimal power generation mix model to quantitatively assess the amount of surplus electricity under massive introduction of PV and wind power in Hokkaido region of Japan and potential roles of the treatment measures mentioned above. The main feature of the model is detailed time-resolution, 10-min through a year, which allows us to investigate impact of various short-cycle renewable variations on surplus electricity and deployment of rechargeable battery. Simulation results potentially suggest that if fraction of PV and wind power expands more than around 10% and 20% of total demand respectively or if sum of PV and wind power fraction exceeds 20%, need for curtailment grows rapidly. The results also suggest that rechargeable battery has better economical compatibility with PV rather than wind power.

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