World’s BIGGEST Hydrogen Plant Produces 0 Hydrogen

Quick Overview

The world's largest green hydrogen plant, the NEOM project in Saudi Arabia, will not produce hydrogen for export; instead, its final product will be green ammonia, which is favored due to superior logistics, storage, and existing infrastructure compared to cryogenic liquid hydrogen.

Key Points: The NEOM green hydrogen project in Oxagon, Saudi Arabia, costs $8.4 billion, is 80% complete, and will produce 600 tons of pure hydrogen daily, but it is built to export 3,400 tons of green ammonia daily. The primary reason for shifting to ammonia is logistical nightmare surrounding hydrogen: liquefying hydrogen requires cooling to -253°C, incurring massive energy costs and boil-off losses (0.1% to 0.5% per day during transport). Ammonia liquefies at a relatively mild -3°C, allowing use of standard refrigeration equipment, and benefits from a century of established global infrastructure for making, storing, and shipping millions of tons annually. Hydrogen suffers from poor volumetric energy density compared to fossil fuels (requiring three times the volume of liquid hydrogen for the same energy as jet fuel), and ammonia's volumetric density is about 40% higher than hydrogen's. The roundtrip efficiency for the liquid hydrogen pathway is best-case 36%, while the ammonia pathway (electrolysis, Haber-Bosch synthesis, shipping, and cracking back to hydrogen) results in a best-case efficiency of around 39%. Despite the massive efficiency losses (over 60% wasted energy in the ammonia pathway), the industry is betting that cheap renewable input energy, combined with gigascale projects and subsidies from nations like Japan and the US (via the IRA $3/kg credit), will make the final molecule price competitive. Global investment in clean hydrogen halved in 2024, and a staggering 93% of all announced hydrogen projects for 2030 have not secured the final investment decision (FID gap).

Context: Saudi Arabia is constructing the NEOM green hydrogen project in Oxagon, a massive industrial port city, as part of its multi-trillion dollar neo mega project, aiming to pivot from an oil producer to a green energy exporter. This project is central to a growing global industry betting on hydrogen to decarbonize hard-to-electrify sectors like shipping and aviation, necessitating solutions for moving renewable energy harvested in remote locations like deserts to industrial centers thousands of miles away.