Chemical engineering professor Daniel Esposito has developed a novel photovoltaic-powered electrolysis device that can operate as a stand-alone platform that floats on open water. His floating PV-electrolyzer can be thought of as a ‘solar fuels rig’ that bears some resemblance to deep-sea oil rigs — but it would produce hydrogen fuel from sunlight and water instead of extracting petroleum from beneath the sea floor.

Source: Columbia engineers develop floating solar fuels rig for seawater electrolysis