As of September 2021, 176 hydroelectric power plants were situated in Nagano Prefecture, making it the prefecture with the largest amount of hydroelectric power plants in Japan. Overall, the number of hydroelectric power plants in Japan amounted to approximately 1.75 thousand power stations.
Number of hydroelectric power plants in Japan as of September 2021, by prefecture
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METI (Japan). (December 24, 2021). Number of hydroelectric power plants in Japan as of September 2021, by prefecture [Graph]. In Statista. Retrieved May 21, 2022, from https://www.statista.com/statistics/1194420/japan-hydroelectric-power-stations-number-by-prefecture/
METI (Japan). "Number of hydroelectric power plants in Japan as of September 2021, by prefecture ." Chart. December 24, 2021. Statista. Accessed May 21, 2022. https://www.statista.com/statistics/1194420/japan-hydroelectric-power-stations-number-by-prefecture/
METI (Japan). (2021). Number of hydroelectric power plants in Japan as of September 2021, by prefecture . Statista. Statista Inc.. Accessed: May 21, 2022. https://www.statista.com/statistics/1194420/japan-hydroelectric-power-stations-number-by-prefecture/
METI (Japan). "Number of Hydroelectric Power Plants in Japan as of September 2021, by Prefecture ." Statista, Statista Inc., 24 Dec 2021, https://www.statista.com/statistics/1194420/japan-hydroelectric-power-stations-number-by-prefecture/
METI (Japan), Number of hydroelectric power plants in Japan as of September 2021, by prefecture Statista, https://www.statista.com/statistics/1194420/japan-hydroelectric-power-stations-number-by-prefecture/ (last visited May 21, 2022)