Importance of Increasing Wind Energy for a Large-scale Introduction of Variable Renewable Energies into Japan Based on Their Characteristics

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  • 再生可能エネルギーの出力特性から導かれる日本への大規模導入時の風力増強の重要性

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<p>This article discusses the importance of trying to attain a fairer proportion of wind energy for a largescale introduction of variable renewable energy (described as “VRE” hereafter) of wind power compared with that from photo-voltaic (the latter “PV” hereafter), for aiming at the Japanese energy sources of 100% renewable energy (hereafter “RE”) in 2050, based on the observed characteristics of VRE. These characteristics were obtained by comparing various characteristics of VRE at two different years for Kyushu Electric Power and Transmission Co., along with those of Germany, by aiming to minimize the back-up energy when trying to adjust the mismatch of the VRE powers against the electricity load. The analysis in this article then shows the necessary procedures for arriving at the final result in terms of improving the output power density by wind in W/m2 and the full exploitation of off-shore wind power.</p>

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