China’s Seawater Hydrogen System Runs 1,000+ Hours in Shandong

The significance lies less in the hydrogen itself than in the co-production angle: pairing seawater electrolysis with extraction of strategic marine elements reframes ocean hydrogen as a minerals play, not just an energy play. That matters for coastal industrial planners and for supply chains around those elements, where China already holds a dominant position. The open question is whether a pilot running for over 1,000 hours translates into sustained commercial-scale output, and whether the co-production economics hold outside a single Shandong site.