100%再生可能エネルギーシステムにおける運用方法と機器単価による電力・水素供給コストへの影響に関する研究

カテゴリ：部門大会

論文No：022

グループ名：【B】令和7年電気学会電力・エネルギー部門大会

発行日：2025/9/5

タイトル(英語)：Cost analysis of electric and hydrogen energy supplies derived from 100% variable renewable resources systems regarding operation methods facility unit cost

著者名：渡辺健太（東北大学），山本博巳（東北大学）

著者名(英語)： Kenta Watanabe (Tohoku University), Hiromi Yamamoto (Tohoku University)

キーワード：再生可能エネルギー,100%VREシステム,運用方法,電力・水素マルチ供給,機器単価,Renewable energy,100%VRE system,Operation methods,Electricity and hydrogen multi supply,Facility unit costs

要約(日本語)：This study evaluated the cost and specifications of the 100% variable renewable energy (VRE) system using solar, wind, and a hybrid storage system of batteries and hydrogen storage. By combining solar and wind power with the hybrid energy storage system—utilizing batteries for short-term fluctuations and hydrogen storage for long-term balancing—the system can efficiently respond to variable energy demand while minimizing the overall costs of energy supply. Multi-supply systems, which deliver both electricity and hydrogen, also show cost-saving potential. Technological advancements in solar and wind power are more effective for cost reduction than storage improvements. However, current supply costs from the 100% VRE system exceed Japan’s 2030 targets, indicating the need for additional measures to achieve cost competitiveness.

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