Published: August 29, 2025 | Updated: September 27, 2025
This week, DeepWind Weekly highlights three major developments shaping Japan’s offshore wind sector.
News Highlights
1. Mitsubishi-led Consortium Exits Three Offshore Wind Projects
Mitsubishi Corp. and partners announced withdrawal from Noshiro/Mitane/Oga, Yurihonjo, and Choshi sites.
Ultra-low bid prices combined with inflation, FX volatility, and rising interest rates undermined project viability. Re-tendering will be required, marking a turning point for Japan’s renewable energy strategy.
🔗 Read article (Press release of Mitsubishi Corp)
2. Goto Floating Installation Demonstration
In Goto, Nagasaki, a new method was tested: assembling turbines onshore, transporting them offshore, and slotting them into foundations.
The approach reduces weather-related risks and costs, and could support deployment of 240m rotor-class turbines in the future.
🔗 Read article (NHK – Japanese)
3. MODEC Secures AiP for TLP Floating Wind Concept
MODEC obtained Approval in Principle (AiP) from ABS for its iTLP2-FOWT design.
The Tension Leg Platform reduces motion and seabed footprint, enabling deployment at 50m+ depths with 15MW-class turbines, and potentially beyond.
🔗 Read article (Nikkei– Japanese)
This Week’s Takeaway
While Mitsubishi’s withdrawal exposes market challenges, Goto’s installation innovation and MODEC’s TLP concept show promising progress.
Japan’s offshore wind is at a crossroads, where policy recalibration and technological advances will shape its future.
Want to see the full picture of this month’s developments?
Check out the “Aug 2025 Monthly Digest” here.
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