Contact details  

Name	J-Power
Country	Japan
Website	https://www.jpower.co.jp
Address	15-1,Ginza 6-Chome Chuo-ku Tokyo 104-816
Fax
Mail

Portfolio summary (*)  

The values below are taken from The Wind Power wind farm database. They are not official figures and may differ from the official data.

The 'MW' and 'Turbines' values do not take into account possible co-developments, co-management arrangements or joint ownership. For example, a wind farm in which the company owns a 50% stake is counted here in its entirety.

Role	Winfarms	MW	Turbines
As developer
As operator
As owner

Winfarms  

• Country	Name	DOpOw (**)	Total rated power (kW)	Number of turbines
  Japan
  Japan
  Japan
  Japan
  Japan
  Japan
  Japan
  Japan
  Japan
  Japan
  Japan
  Japan
  Japan
  Japan
  Japan
  Japan
  Japan
  Japan
  Japan
  Japan
  Japan
  Japan
  Japan
  Japan
  Japan
  Japan
  Japan
  Japan
  Japan
  Japan

• Country	Name	DOpOw (**)	Total rated power (kW)	Number of turbines
  Japan
  Japan
  Poland
  Poland
  United-Kingdom
  United-Kingdom
  United-Kingdom

	Databases     Developers (2,694 entries) Operators (2,588 entries) Owners (3,199 entries) All players (5,769 entries) All databases

	Major wind farms Triton Knoll Wind Farm (855,0 MW) Hiyama Offshore (722,0 MW) Saikai-Enoshima (392,0 MW) Awara - J-Power (350,0 MW) Nunobiki (69,0 MW) Setana Osato (51,2 MW) Losino (48,0 MW) Zajaczkowo i Widzino (48,0 MW) Ashoro (42,3 MW) Nikaho Daini (41,4 MW) Irouzaki (34,0 MW) Hiyama (28,7 MW) Minami Ehime 1 (28,0 MW) Oguni-cho (26,0 MW) Nikaho Kogen (25,8 MW) Minami Kyushu (24,7 MW) Tomamae (23,1 MW) Tahara (22,0 MW) Esashi (Hokkaido) (21,0 MW) Ishikari Hachinosawa (21,0 MW)

	Legend #ND: no data (*) : according to The Wind Power database (**) : Developer / Operator / Owner

	Update for this sheet 14 May 2026