Off-grid, modular, and seaworthy: KIT (Karlsruhe Institute of Technology) and partners intend to produce synthetic fuels on a floating platform using wind energy, seawater, and ambient air. For this purpose, the “PtX-Wind” project was launched under the H2Mare lead project. A corresponding modular plant was installed on a barge and lies operational at anchor in Bremerhaven. Later this year, it will start producing synthetic fuel directly on the sea just off Helgoland Island.