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■ページ数 10ページ



A Study on the Methodology to Estimate System Integration Costs under High Penetration of Variable Renewable Energy Sources

■著者名 遠藤 聖也((一財)日本エネルギー経済研究所),松尾 雄司((一財)日本エネルギー経済研究所/立命館アジア太平洋大学),裄V 明((一財)日本エネルギー経済研究所),石田 裕之((株)三菱総合研究所),北村 健太((独)経済産業研究所),東 仁((株)J-POWERビジネスサービス),礒永 彰((株)J-POWERビジネスサービス),福留 潔((株)J-POWERビジネスサービス),中山 寿美枝(電源開発(株))
■著者名(英語) Seiya Endo (The Institute of Energy Economics, Japan), Yuhji Matsuo (The Institute of Energy Economics, Japan/Ritsumeikan Asia Pacific University), Akira Yanagisawa (The Institute of Energy Economics, Japan), Hiroyuki Ishida (Mitsubishi Research Institute), Kenta Kitamura (Research Institute of Economy, Trade and Industry), Hitoshi Azuma (J-POWER Business Service Corporation), Akira Isonaga (J-POWER Business Service Corporation), Suguru Fukutome (J-POWER Business Service Corporation), Sumie Nakayama (J-POWER/Electric Power Development Co., LTD.)
■価格 会員 ¥550 一般 ¥770
■書籍種類 論文誌(論文単位)
■グループ名 【B】電力・エネルギー部門
■本誌 電気学会論文誌B(電力・エネルギー部門誌) Vol.141 No.12 (2021)
■本誌掲載ページ 745-754ページ
■原稿種別 論文/日本語
■電子版へのリンク https://www.jstage.jst.go.jp/article/ieejpes/141/12/141_745/_article/-char/ja/
■キーワード 変動性再生可能エネルギー,電力需給解析,発電コスト,統合コスト,最適化  variable renewable energy,supply-demand analysis,power generation cost,integration cost,optimization
■要約(英語) Due to growing concerns over climate change, as well as to the recent cost declines, variable renewable energies (VREs), such as wind and solar PV, have seen rapid deployment over the past few years. High penetration of VREs, however, requires additional costs caused by the intermittency, e. g. those for grid expansion, for deploying power storage systems, and for power curtailment. Thus the total system cost becomes larger than the cost measured simply by the traditional metric known as the levelized cost of electricity (LCOE), which has long been used for estimating the economics of the power sector. This paper proposes a methodology to assess these additional “system integration costs”, as well as to decompose them into several subcategories, using two complementary mathematical optimization models. It also applies the methodology to Japan's power system in 2030, in the aim of obtaining insights into the key factors that determine the changes in the power sector under high penetration of VREs. The results show that in a case with a solar PV capacity of 64GW and a wind capacity of 10GW, the system integration cost divided by the total power supply amounts to 0.41JPY/kWh. Reduction in the load factors of conventional power generation facilities accounts for the largest part of the system integration cost at 0.30JPY/kWh, highlighting the need for appropriate policy measures that ensure the adequacy of power systems.
■版 型 A4
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