Japan is preparing to launch the fourth round of offshore wind power auctions under its public tender scheme, which has so far allocated around 3.1 GW of capacity. However, uncertainties over upcoming amendments to the system are raising doubts about the longterm viability of the country’s offshore wind development.

Once seen as one of Asia’s most promising offshore wind markets, Japan is at risk of losing momentum. Several international developers recently opted out of tenders, turning their focus to other Asia-Pacific markets. A complicated auction system and concerns over financial feasibility have made Japan less attractive for offshore wind investment.

In contrast, Taiwan and South Korea have had more success in advancing their offshore wind sectors due to adjustments that have created more transparent and investor-friendly auction systems, which are drawing significant competition and funding. This situation offers clear lessons for Japan as it seeks to rebuild confidence and revive interest.

Offshore wind is still Japan’s main pathway for adding dozens of GW of green capacity in the 2030s, according to the nation’s energy strategy. Developers want officials to act in ways that confirm this commitment.