離島用再生可能エネルギー電源システムの容量計画と経済性評価

カテゴリ: 部門大会

論文No: 7

グループ名: 【B】平成24年電気学会電力・エネルギー部門大会

発行日: 2012/09/12

タイトル(英語): Capacity Planning and Economical Evaluation of a Renewable Power System for Remote Island

著者名: 周 卓敏(産業技術総合研究所),前田 哲彦(産業技術総合研究所),石田 政義(筑波大学)

著者名(英語): Zhuomin Zhou(National Institute of Advanced Industrial Science and Technology),Tetsuhiko Maeda(National Institute of Advanced Industrial Science and Technology),Masayoshi Ishida(University of Tsukuba)

キーワード: 離島|再生可能エネルギー電源システム|水素貯蔵|容量計画|経済性評価|remote island|renewable power system|hydrogen storage|capacity planning|economical evaluation

要約(日本語): This paper presents capacity planning and economical evaluation of a renewable power system proposed for Okushiri Island, which is a remote island in the southwest of Hokkaido. In this system, the power demand is mainly provided by photovoltaic (PV), wind turbine (WT). Batteries (BA) are used as short time energy storage, and hydrogen storage system (composed of water electrolyzer (WE), hydrogen storage (TK), and fuel cell (FC)) is used as long time energy storage. Optimal capacities of these power sources are those meet the required supply reliability, with the lowest cost. As the first step in the capacity planning, mathematical models for characterizing PV, WT, BA, WE, FC, and TK are explained. The second step is to optimize the capacities of components. The configurations, which meet the required supply reliability with the lowest cost, give the optimal choices. These calculations are carried out with hourly meteorological data and energy demand data of Okushiri Island. As a result, hybrid storage (battery and hydrogen) is the best choice for Okushiri Island when high supply reliability is required. In the range of loss of power supply probability 0.1 to 0, the levelized cost of energy will be about 70-150 yen/kWh.

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