再生可能エネルギーは日本エネルギー安全保障の要諦

This report by the Climate Bonds Initiative argues that expanding domestic renewable energy is critical for Japan's national security and strategic autonomy, given its high dependence on energy imports. It proposes a pathway to achieve an 80-90% clean energy grid by 2035-2040 through grid expansion, regulatory reform, and the mobilization of private capital.

• The report suggests that Japan can achieve a clean energy ratio of 80% or more by 2040, exceeding the 60-70% target set in the 7th Strategic Energy Plan. A more ambitious scenario suggests a 90% clean energy grid by 2035, consisting of 70% renewables, 20% nuclear, and 10% natural gas, with all existing coal-fired power plants phased out by 2035.
• Domestic renewable resources are vast; solar potential (excluding mega-solar) is 1.5 to 2.3 times annual domestic electricity demand, and floating offshore wind potential is 2 to 9 times that demand. To unlock this, the report recommends four policy measures: expanding transmission capacity, accelerating permitting processes, expanding distributed energy, and utilizing long-term Power Purchase Agreements (PPAs) to attract low-interest funding.

APA

Watanabe, Y., Martini, M., Vázquez, A. D., Vandercamme, L., & Kidney, S. (2026). 再生可能エネルギーは日本エネルギー安全保障の要諦. Climate Bonds Initiative. https://www.climatebonds.net/files/documents/publications/Japan_Self-sufficiency_J_05C.pdf

Chicago

Watanabe, Yumiko, Mireille Martini, Ana Díaz Vázquez, Lilu Vandercamme, and Sean Kidney. 再生可能エネルギーは日本エネルギー安全保障の要諦. Climate Bonds Initiative, 2026. https://www.climatebonds.net/files/documents/publications/Japan_Self-sufficiency_J_05C.pdf.

Wikipedia

{{cite report |last1=Watanabe |first1=Yumiko |last2=Martini |first2=Mireille |last3=Vázquez |first3=Ana Díaz |last4=Vandercamme |first4=Lilu |last5=Kidney |first5=Sean |title=再生可能エネルギーは日本エネルギー安全保障の要諦 |publisher=Climate Bonds Initiative |date=February 2026 |url=https://www.climatebonds.net/files/documents/publications/Japan_Self-sufficiency_J_05C.pdf |access-date=17 August 2026 |via=Climate Insights Directory}}

BibTeX

@techreport{watanabe2026, author = {Watanabe, Yumiko and Martini, Mireille and Vázquez, Ana Díaz and Vandercamme, Lilu and Kidney, Sean}, title = {{再生可能エネルギーは日本エネルギー安全保障の要諦}}, institution = {Climate Bonds Initiative}, year = {2026}, month = feb, url = {https://www.climatebonds.net/files/documents/publications/Japan_Self-sufficiency_J_05C.pdf}, urldate = {2026-08-17}, note = {Indexed by Climate Insights Directory} }