Decarbonizing local energy systems and creating new value through the large-scale introduction of offshore wind power

2023 Fiscal Year Final Research Report

• Project/Area Number: 21K12361
• Research Category: Grant-in-Aid for Scientific Research (C)
• Allocation Type: Multi-year Fund
• Section: 一般
• Review Section: Basic Section 64060:Environmental policy and social systems-related
• Research Institution: Akita University
• Principal Investigator: Furubayashi Takaaki 秋田大学, 理工学研究科, 准教授 (40551528)
• Project Period (FY): 2021-04-01 – 2024-03-31
• Keywords: 洋上風力発電 / 地域エネルギーシステム / 脱炭素 / エネルギー貯蔵 / 水素

Outline of Final Research Achievements

The objective of this study is to design a regional energy system in which offshore wind power is introduced on a large scale, and to identify the technological development, installation facilities, and policies required for decarbonization, as well as to demonstrate the new value to be created. Using Akita Prefecture as a case study, regional offshore wind power availability and energy demand are analyzed, taking into account time variability. The amount of surplus electricity was estimated from the supply and demand volumes, and the energy efficiency, CO2 reduction effect, and economic efficiency of various uses of surplus electricity, such as storage in storage batteries and hydrogen production, were quantitatively evaluated. Based on the results obtained, we designed a regional energy system to decarbonize electricity, heat, and transportation fuels, as well as economic cycles and cost differences between renewable energy sources within and outside the region.

Free Research Field

エネルギーシステム学

Academic Significance and Societal Importance of the Research Achievements

本研究の学術的意義および社会的意義として、風力発電の大規模導入を考慮した地域エネルギーシステムをデザインしたこと、発生する余剰電力を多様なエネルギー貯蔵で貯蔵することを想定して分析、比較することで、最適な利用方法を明らかにしたこと、再生可能エネルギーの地産地消による経済循環効果、地域と都市部との再生可能エネルギー供給コストの差等、脱炭素化が地域に創出する価値を評価したこと、地域の脱炭素化に向けて求められる技術、政策、インフラなどを明らかにしたこと、得られた成果を県や市町村等の地域自治体や地元企業と共有して、再生可能エネルギーの社会実装に資することが挙げられる。