China launches world's first semi-submersible offshore wind-to-hydrogen plant in South China Sea

China has started up what it calls the world's first semi-submersible offshore wind-to-hydrogen plant. The facility, built by CIMC Raffles, uses a PEM electrolyser in the shallow waters of the South China Sea to produce green hydrogen from offshore wind power. Launching a hydrogen plant on a floating platform is a new step for the sector, though the article does not yet give capacity or expected output figures. For people tracking offshore wind and green hydrogen, the main question is whether this design can work at scale. Semi-submersible platforms are proven in oil and gas, but running an electrolyser at sea adds challenges around salt corrosion, motion, and maintenance access. If the project publishes operating data later, it could tell us a lot about whether offshore hydrogen is a realistic way to avoid wind curtailment or just an expensive pilot.