1. Prime Minister of Japan and His Cabinet, Speeches and Statements by the Prime Minister, 2020. (Accessed 20 March 2021) https://japan.kantei.go.jp/99_suga/statement/202010/_00006.html.
2. The government of Japan, Strategic Energy Plan, 2018. (Accessed 20 March 2021) https://www.enecho.meti.go.jp/en/category/others/basic_plan/5th/pdf/strategic_energy_plan.pdf.
3. Ministry of Economy, Trade and Industry Web site [In Japanese]. (Accessed 20 March 2021) https://www.enecho.meti.go.jp/category/saving_and_new/saiene/statistics/index.html.
4. Japan Wind Power Association, Suggestion of targeted installed capacity of offshore wind energy in 2030 for realizing carbon neutral by 2050 [In Japanese], 2021. https://www.meti.go.jp/shingikai/enecho/denryoku_gas/saisei_kano/028.html.
5. Public-Private Council on Enhancement of Industrial Competitiveness for Offshore Wind Power Generation, Vision for Offshore Wind Power Industry (1st). https://www.meti.go.jp/shingikai/energy_environment/yojo_furyoku/pdf/002_02_e02_01.pdf.