On June 28, 2018, New Energy and Industrial Technology Development Organization (NEDO) announced the publication of its annual report on wind power generation facilities and installed capacity in Japan for FY 2017, as of the end of March 2018. The cumulative installed wind power capacity increased by 4.3% from the previous year to about 3.5 million kW, and the installed facilities increased by 2.5% to 2,253 units. In FY 2017, 54 wind power generation facilities with approximately 150,000 kW of capacity were installed.

NEDO publishes an updated report every fiscal year which highlights the current results of Japan’s wind power generation facilities and their installed capacity, based on interview surveys with Japanese power producers. The survey targets all grid-connected wind power energy producers with single-unit output of over 10 kW and total output of 20 kW or more. The survey’s questions include the wind power facility’s operating date, the name of the installer and manufacturer, the location (prefecture and municipality), total output, rated output, and the number of installed wind power facilities, etc.