Beyond these sensitivities, Namibia’s broader hydrogen aspirations remain subject to many questions. Other facilities are planned here and in the south, but some worry that hydrogen projects could face water-related bottlenecks. Absent incentives, Tengler is skeptical that green hydrogen will ever reach cost parity with gray hydrogen in most parts of the world. According to the IEA road map, ammonia made from green hydrogen could power 44% of global shipping by midcentury. Detlof von Oertzen, an energy consultant who’s been exploring Namibia’s hydrogen potential since independence, believes this is reckless, especially given the country’s pressing needs in food, health care, and education.