This is a dynamic list and may never be able to satisfy particular standards for completeness. You can help by expanding it with reliably sourced entries.
This is a list of operational, offshore wind farms in Japan (within the national maritime boundaries).
Wind turbine model
Unit power (MW)
No. of Units
Owner / operator
Notes and references
Setana Wind Farm
Close to shore 
Sakata Offshore Wind Farm
8 (3 onshore)
Wind Power Kamisu
Close to shore, survived exposure to the 2011 Tōhoku earthquake and tsunami.
Fukushima Floating Wind Turbine
Wind power in Japan
List of wind farms
List of offshore wind farms
Lists of offshore wind farms by country
^ “Offshore wind farms planned,” Japan Times, May 9, 2010; retrieved 13 Dec 2010; Kawasaki Heavy Industries, “Japan’s First Offshore Wind Power System Delivered to Hokkaido”
^ “Datasheet for Sakata Offshore Wind Farm”. LORC Knowledge. 2011-03-14. Retrieved 2011-07-04.
^ 4C Offshore site page, accessed 11 February 2011
^ “First domestic open sea wind power plant starts operation,” Denki Shimbun. July 23, 2010.[dead link]
^ Wood, Elisa (2011-05-25). “The Dangers of Energy Generation”. Renewable Energy World. Archived from the original on 2011-06-03.
^ Elaine Kurtenbach. “Japan starts up offshore wind farm near Fukushima” The Sydney Morning Herald, 12 November 2013. Accessed: 11 November 2013.
^ Fukushima Forward pamphlet