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Analysis of effective measures for power fluctuation mitigation of geographically distributed wind and solar power

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Title: Analysis of effective measures for power fluctuation mitigation of geographically distributed wind and solar power
Authors: Lukwesa, Biness Browse this author
Takahashi, Naoya Browse this author
Suzuki, Kengo Browse this author
Tabe, Yutaka Browse this author →KAKEN DB
Chikahisa, Takemi Browse this author →KAKEN DB
Keywords: Cost optimization
Variable renewable energy (VRE)
Energy system analysis
Wind power
Solar power
Power transmission
Power storage
Issue Date: 15-Feb-2022
Publisher: Japan Society of Mechanical Engineers
Journal Title: Mechanical Engineering Journal
Volume: 9
Issue: 1
Start Page: 21-00154
Publisher DOI: 10.1299/mej.21-00154
Abstract: Establishing sustainable and economical pathways for the deployment of variable renewable energy (VRE) is essential for reducing greenhouse gas emissions and increasing energy security. However, due to VRE power output fluctuations, high shares of VRE are associated with increases in surplus power generation, which increases the cost of power supply. This paper examines the effects of power fluctuation mitigation measures on the integration of high shares of VRE in power supply systems. The paper takes a systematic approach to evaluate the effects of the geographical distribution of VRE locations, the increase in transmission capacity, and the introduction of large-scale battery storage while increasing the VRE share. The methodology used in this analysis is a linear programming-based power supply mix model which was developed to optimize installed capacities and operation patterns of a power supply system with geographically distributed VRE locations by minimizing the total cost of power supply. The developed methodology is applied to the power supply system of Hokkaido, Japan, as a case study. The results demonstrate that VRE shares of up to 40 % can be achieved by geographically distributing the VRE locations with no increase in the total cost of the power supply. This is because the geographical distribution of VRE locations suppresses the increase in surplus power generation. Further, achieving 40 % to 60 % VRE shares only requires an increase in the power transmission capacity. However, for higher VRE shares from 60 % to 80 %, a combination of the geographical distribution of VRE locations, transmission capacity increase, and the introduction of power storage are required to effectively minimize the amount of surplus power generated.
Type: article
Appears in Collections:工学院・工学研究院 (Graduate School of Engineering / Faculty of Engineering) > 雑誌発表論文等 (Peer-reviewed Journal Articles, etc)

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