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Title
Japanese:ブータン王国における気候変動にともなう水力発電量の将来変化 
English:Future Changes in Hydropower Generation in the Kingdom of Bhutan Under Climate Change 
Author
Japanese: 土居慶祐, 藤岡敦史, 佐々木織江, 花崎直太, 鼎信次郎.  
English: Keisuke Doi, Atsushi Fujioka, Orie Sasaki, Naota Hanasaki, Shinjiro Kanae.  
Language Japanese 
Journal/Book name
Japanese:土木学会論文集B1（水工学） 
English:Journal of Japan Society of Civil Engineers, Ser. B1 (Hydraulic Engineering) 
Volume, Number, Page 75    2    1111-1116
Published date Nov. 2019 
Publisher
Japanese:公益社団法人土木学会 
English:Japan Society of Civil Engineers 
Conference name
Japanese: 
English: 
Conference site
Japanese: 
English: 
Official URL https://www.jstage.jst.go.jp/article/jscejhe/75/2/75_I_1111/_article/-char/ja
 
DOI https://doi.org/10.2208/jscejhe.75.2_I_1111
Abstract The kingdom of Bhutan aims for economic development under a carbon-neutral society by relying on hydropower development. However, the change in the annual total amount and seasonality of river discharge due to climate change may have serious effects on hydropower generation. In this study, we evaluated the change in hydropower generation at existing plants and hydropower potential in Bhutan based on the future river discharge estimated by using several Global Climate Models. We found that the annual total amount of hydropower generation in the whole Bhutan increases at the end of 21st century. As for the monthly generation amount, we found that the amount of power generation in the rainy season (June-September) will increase, and that of at the end of the dry season (April-May) will decrease. In case of existing hydropower plants, we found that although river discharge in rainy season will increase, hydropower generation will not increase due to limitation of the current capacity of the water intake to the plant.

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