China Petroleum & Chemical Corporation (Sinopec) has completed China's first factory-based seawater hydrogen production research project at its Qingdao Refinery. The project integrates direct seawater electrolysis with renewable energy-powered green hydrogen production, achieving an hourly output of 20 cubic meters of green hydrogen. This innovative approach not only offers a new solution for coastal regions to utilize renewable energy for green hydrogen production but also provides an alternative pathway for the resourceful utilization of high-salinity industrial wastewater. The project adopts a factory-based operation model, leveraging green electricity from the refinery's floating photovoltaic power station. By electrolyzing seawater, hydrogen and oxygen are produced, with the hydrogen integrated into the refinery's pipeline network for refining processes or hydrogen-powered vehicles. Seawater hydrogen production has significant potential as it converts unstable renewable energy into green hydrogen, which is easier to store and utilize while conserving freshwater resources. Despite challenges like salt content and impurities in seawater, Sinopec overcame them through specialized equipment innovations, enabling seamless integration of research and practical applications. Sinopec aims to be China's leading hydrogen energy company, with milestones like deploying a megawatt-scale PEM electrolyzer and commissioning China's first 100-kilowatt Solid Oxide Electrolysis Cell project. By 2024, the company plans to establish 136 hydrogen refueling stations and 11 hydrogen fuel supply centers, driving growth in the hydrogen energy sector.