Japan sets 15 GW floating offshore wind target by 2040
Japan has taken a significant step towards scaling up its floating offshore wind capacity, setting a target of 15 gigawatts (GW) by 2040. This would account for as much as half of the country’s broader offshore wind ambition of 30–45 GW.
The target was announced by the Ministry of Economy, Trade and Industry (METI) and comes shortly after Japan introduced new legislation allowing the development of offshore wind projects within its exclusive economic zone (EEZ). This change opens up vast new deepwater areas — more than 200 metres deep — where floating wind technology will be essential.
Building the supply chain
In parallel with setting its 2040 target, Japan has taken steps to strengthen its offshore wind supply chain:
METI–Siemens Gamesa cooperation: In June 2025, METI signed an agreement with Siemens Gamesa to boost domestic turbine manufacturing capacity.
Nippon Steel Corporation–Vestas deal: In July 2025, Nippon Steel announced it will supply steel for Vestas turbine towers across Europe, Asia, and Japan, ensuring critical material supply for future projects.
Opportunities for Norwegian expertise
-Japan’s commitment to floating wind, paired with concrete actions to build its supply chain, sends a clear signal to international technology leaders. With Norway’s strong expertise in deepwater floating solutions, we see great potential for mutually beneficial partnerships, says Astrid Green, Business Development Manager in Norwegian Offshore Wind.
With its proven track record in floating offshore wind innovation — particularly in challenging marine environments — Norway is well positioned to support Japan in reaching its clean energy goals. The country’s offshore wind targets are part of its broader ambition to achieve net zero emissions by 2050.
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