Pipeline, Ship, or Ammonia: How Do You Actually Move Hydrogen?

Why this is a genuinely separate problem from production

The best locations for cheap green hydrogen production — strong, consistent wind or solar resource, often in regions like North Africa, the Middle East, or Australia — frequently aren't close to the industrial centers in Europe and Asia that actually want to buy it. Production and demand are geographically mismatched at a global scale, which makes transport infrastructure just as important as electrolyzer capacity.

Option one: repurposed or new pipelines

Natural gas pipelines can sometimes be adapted to carry hydrogen, which is attractive since the infrastructure already exists. The complications are real: hydrogen's small molecular size makes it prone to leaking through seals and joints that held natural gas fine, and it can make certain steel pipeline materials brittle over time (a phenomenon called hydrogen embrittlement) — meaning not every existing pipeline can simply be repurposed without inspection, upgrades, or partial replacement.

Option two: ship it as ammonia

Converting hydrogen to ammonia (combining it with nitrogen from the air) before shipping is gaining traction for long intercontinental routes, since ammonia liquefies at a far more practical temperature than pure hydrogen and can use adapted versions of existing global ammonia shipping infrastructure. The buyer then either uses the ammonia directly (it's already a major industrial chemical, mainly for fertilizer) or "cracks" it back into hydrogen at the destination — a conversion step that costs real energy and money each way.

Option three: ship it as liquid hydrogen directly

A handful of specialized vessels now carry liquid hydrogen directly, kept at roughly -253°C for the voyage. This avoids the conversion losses of the ammonia route, but liquefaction and the specialized cryogenic ships required are expensive, and the technology is still much less mature and far less widely deployed than ammonia shipping.

Why the "best" method depends on the route

Short, overland distances favor pipelines where the infrastructure exists or can be built. Long intercontinental routes currently favor ammonia, purely because the shipping infrastructure and chemical handling expertise already exist at scale. Liquid hydrogen shipping remains a smaller, higher-cost niche for now, mostly favored where the buyer specifically needs pure hydrogen without an extra conversion step.

The takeaway

There's no single winning transport method — the entire reason multiple approaches are being built out simultaneously is that each one fits a different combination of distance, existing infrastructure, and what the end buyer actually wants to receive.