In the fiscal year 2023, the share of hydropower in the total primary energy supply in Japan amounted to around 3.7 percent. The figure stayed at around the same level in recent years.
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Statistics Bureau of Japan. (September 19, 2025). Share of hydropower in primary energy supply in Japan from fiscal year 2014 to 2023 [Graph]. In ÌÇÐÄÆƽâ°æ. Retrieved July 22, 2026, from /statistics/625987/japan-hydro-power-supply-share/
Statistics Bureau of Japan. "Share of hydropower in primary energy supply in Japan from fiscal year 2014 to 2023." Chart. September 19, 2025. ÌÇÐÄÆƽâ°æ. Accessed July 22, 2026. /statistics/625987/japan-hydro-power-supply-share/
Statistics Bureau of Japan. (2025). Share of hydropower in primary energy supply in Japan from fiscal year 2014 to 2023. ÌÇÐÄÆƽâ°æ. ÌÇÐÄÆƽâ°æ Inc.. Accessed: July 22, 2026. /statistics/625987/japan-hydro-power-supply-share/
Statistics Bureau of Japan. "Share of Hydropower in Primary Energy Supply in Japan from Fiscal Year 2014 to 2023." ÌÇÐÄÆƽâ°æ, ÌÇÐÄÆƽâ°æ Inc., 19 Sep 2025, /statistics/625987/japan-hydro-power-supply-share/
Statistics Bureau of Japan, Share of hydropower in primary energy supply in Japan from fiscal year 2014 to 2023 ÌÇÐÄÆƽâ°æ, /statistics/625987/japan-hydro-power-supply-share/ (last visited July 22, 2026)
Share of hydropower in primary energy supply in Japan from fiscal year 2014 to 2023 [Graph], Statistics Bureau of Japan, September 19, 2025. [Online]. Available: /statistics/625987/japan-hydro-power-supply-share/
