"Sunlight falls on the desert, wind crosses it, and water is split into its parts. No carbon is burned, none released. The hydrogen carries the sun's energy in a new form, bound and shipped across oceans. The desert does not run out of sun. The engineers only open a path."
— The Energy Codex · observation without ownership · thecodex.expert
Cluster 1 · What is it?
What NEOM Green Hydrogen is — precisely
NEOM Green Hydrogen is a giant facility being built in the Saudi desert that uses dedicated solar and wind power to split water into hydrogen, then turns that hydrogen into ammonia for export — all with essentially zero carbon emissions.
What is green hydrogen, in plain English?
Hydrogen is a clean fuel — burn it or use it in a fuel cell and the only by-product is water, no carbon. The catch is how you make it. Most hydrogen today is made from natural gas, which releases carbon. "Green" hydrogen is different: you use electricity from solar and wind to split water (H₂O) into hydrogen and oxygen. No carbon at all. NEOM does this at enormous scale in the desert, where sun and wind are abundant, then ships the energy out as ammonia.
Hydrogen is a clean fuel — burn it or use it in a fuel cell and the only by-product is water, no carbon. The catch is how you make it. Most hydrogen today is made from natural gas, which releases carbon. "Green" hydrogen is different: you use electricity from solar and wind to split water (H₂O) into hydrogen and oxygen. No carbon at all. NEOM does this at enormous scale in the desert, where sun and wind are abundant, then ships the energy out as ammonia.
Consistent with: IEA Hydrogen
Technical classification: NEOM is a utility-scale green-hydrogen-to-ammonia production facility.
Green hydrogen — made by electrolysis powered entirely by renewable electricity, so near-zero lifecycle carbon (unlike grey hydrogen from steam methane reforming, or blue hydrogen which adds carbon capture).
~4 GW renewables — dedicated solar and onshore wind, sized to run the electrolysers around the clock as much as possible.
~600 t/day H₂ — target hydrogen output, converted on site to ~1.2 Mt/yr green ammonia for export.
It is a joint venture of ACWA Power, Air Products and NEOM, using thyssenkrupp electrolysers.
Green hydrogen — made by electrolysis powered entirely by renewable electricity, so near-zero lifecycle carbon (unlike grey hydrogen from steam methane reforming, or blue hydrogen which adds carbon capture).
~4 GW renewables — dedicated solar and onshore wind, sized to run the electrolysers around the clock as much as possible.
~600 t/day H₂ — target hydrogen output, converted on site to ~1.2 Mt/yr green ammonia for export.
It is a joint venture of ACWA Power, Air Products and NEOM, using thyssenkrupp electrolysers.
Integrated renewable-to-ammonia complex at Oxagon, NEOM. ~4 GW solar PV + onshore wind feeding alkaline electrolysis (thyssenkrupp nucera, ~2 GW electrolyser scale class) for ~600 t/day H₂; on-site Haber–Bosch ammonia synthesis (~1.2 Mt/yr NH₃) with air separation for nitrogen. Designed for variable renewable input with flexible operation. Equity: ACWA Power, Air Products, NEOM (equal thirds). Air Products is exclusive ammonia offtaker under long-term agreement. EPC and integration led by Air Products. Financial close 2023, ~US$8.4 bn.
~4 GWDedicated solar + wind
~600 t/dayGreen hydrogen (target)
~1.2 Mt/yrGreen ammonia (target)
~$8.4 bnInvestment, FC 2023
Cluster 2 · Why does it exist?
Why green hydrogen — and why here
Some industries can't easily run on batteries or direct electricity — heavy shipping, fertiliser, steel. Green hydrogen and ammonia offer them a carbon-free fuel. The Saudi desert offers cheap, abundant sun and wind to make it.
Cars and homes can run on electricity directly. But some things are very hard to electrify — big cargo ships, making fertiliser, producing steel. These need a dense, carbon-free fuel, and green hydrogen (or ammonia made from it) can be that fuel. Saudi Arabia has enormous amounts of sun and wind and lots of empty land, which makes it one of the cheapest places on Earth to produce green hydrogen — and a country keen to sell clean energy, not just oil.
Green hydrogen targets "hard-to-abate" sectors: shipping fuel, ammonia for fertiliser, steel (replacing coking coal in direct reduction), and high-temperature industrial heat. NEOM's location combines exceptional solar irradiance, strong complementary wind, and vast land — driving down the levelised cost of hydrogen. For Saudi Arabia it is part of Vision 2030 diversification: exporting clean molecules to Europe and Asia rather than only crude oil.
Rationale: hydrogen as energy vector for sectors where direct electrification is impractical (marine fuel via ammonia, fertiliser feedstock, DRI steelmaking, refining). NEOM's co-located solar+wind raises combined capacity factor, improving electrolyser utilisation and lowering LCOH. Strategic context: Saudi Vision 2030 economic diversification and positioning as a clean-molecule exporter; alignment with EU/Asia import strategies for renewable hydrogen and ammonia.
Cluster 3 · How does it work?
From sunlight to shippable fuel
Solar and wind make electricity; electrolysers use it to split water into hydrogen; the hydrogen is combined with nitrogen from the air to make ammonia, which can be loaded onto ships.
Step one: solar panels and wind turbines make electricity. Step two: that electricity runs machines called electrolysers, which pass current through water and split it into hydrogen and oxygen — the hydrogen is collected. Step three: pure hydrogen is hard to ship, so it's combined with nitrogen pulled from ordinary air to make ammonia, a liquid that ships already know how to carry. The ammonia sails to customers, who use it directly or turn it back into hydrogen.
Renewable electricity → electrolysis (water split into H₂ and O₂) → hydrogen purification and buffering → Haber–Bosch synthesis combining H₂ with N₂ (from an air separation unit) under heat and pressure to form ammonia (NH₃) → storage and export by ship. Designing for variable renewable input is the hard engineering: electrolysers and, to a degree, ammonia synthesis must cope with fluctuating power, supported by some buffering and flexible operation.
Process train: VRE generation → alkaline electrolysis (thyssenkrupp nucera) producing H₂ at scale → compression/purification → cryogenic air separation for N₂ → Haber–Bosch loop (~400–500 °C, high pressure, catalyst) producing NH₃ → refrigerated ammonia storage → marine export. Flexibility provisions accommodate intermittency; integration and dynamic operation of green ammonia synthesis at this scale is a key first-of-a-kind engineering challenge.
Cluster 4 · Who builds it?
ACWA Power, Air Products and NEOM
The project is owned equally by three partners: Saudi developer ACWA Power, US industrial-gas company Air Products, and NEOM itself. Air Products will buy all the green ammonia.
Three owners share the project equally. ACWA Power is a big Saudi company that builds power and water plants worldwide. Air Products is an American company that has made and moved industrial gases like hydrogen for decades. NEOM is the giant new Saudi development zone where it's being built. Importantly, Air Products has agreed to buy all the ammonia the plant makes, which gave the project the confidence to go ahead.
NEOM Green Hydrogen Company (NGHC) is an equal three-way joint venture of ACWA Power, Air Products, and NEOM. Air Products leads engineering integration and is the exclusive long-term offtaker of the green ammonia, marketing it globally. This guaranteed offtake was central to reaching financial close in 2023, since a buyer-backed revenue stream de-risks first-of-a-kind hydrogen megaprojects.
Ownership: ACWA Power / Air Products / NEOM, equal equity. Air Products: EPC integration lead and exclusive ammonia offtaker under a long-term agreement, providing bankable revenue certainty. Financing: ~US$8.4 bn total investment, financial close 2023 with a large project-finance debt package from regional and international lenders — among the largest project financings in green hydrogen to date.
Cluster 5 · What makes it special
Why ammonia, not pure hydrogen
Pure hydrogen is extremely hard to store and ship. Converting it to ammonia — a substance the world already moves by the millions of tonnes — is what makes NEOM's export model practical.
Hydrogen is the lightest gas there is, which makes it a nightmare to ship — you'd have to chill it to around minus 253 °C or squeeze it into heavy tanks. Ammonia is much easier: it turns liquid at a mild chill or modest pressure, and the world already ships about 20 million tonnes of it a year for fertiliser. So NEOM turns its hydrogen into ammonia, ships that, and the customer either uses the ammonia directly or splits it back into hydrogen.
Hydrogen's low volumetric energy density requires either liquefaction at ~−253 °C or high-pressure storage — both costly and energy-intensive for long-distance trade. Ammonia (NH₃) liquefies at ~−33 °C (or under modest pressure), has higher volumetric hydrogen density, and rides on an existing global trade and port infrastructure (~20 Mt/yr traded). It can be used directly (fertiliser, marine fuel, co-firing) or "cracked" back to hydrogen at destination.
Ammonia as hydrogen carrier: 17.6 wt% hydrogen, ~108 kg H₂/m³ liquid (vs ~71 kg/m³ for liquid H₂), liquefaction at −33 °C/1 atm. Existing Haber–Bosch, storage and shipping ecosystem lowers deployment barriers. Trade-offs: energy penalty for synthesis and (if used) cracking, NOx and ammonia-slip management, and toxicity handling. NEOM's choice of ammonia reflects export-oriented economics over domestic pipeline hydrogen.
Cluster 6 · India connection
What NEOM means for India
India has its own large green-hydrogen ambitions and is both a potential competitor and customer. NEOM is the benchmark India's National Green Hydrogen Mission measures itself against.
India has launched its own big green-hydrogen plan and wants to become a major producer. Companies like Reliance, Adani and NTPC are building green-hydrogen projects. NEOM shows India what a world-scale project looks like and what it costs. India and Saudi Arabia could compete to sell green ammonia to the same buyers in Europe and Asia — or India might import some too. Either way, NEOM is the project Indian planners watch closely.
India's National Green Hydrogen Mission targets ~5 million tonnes/year of green hydrogen production by 2030 with major incentives. Indian developers (Reliance, Adani, NTPC, ACME, and others) are advancing electrolyser and green-ammonia projects. NEOM serves as both competitive benchmark (export markets in the EU and East Asia) and technical reference for integrating gigawatt-scale renewables with electrolysis and ammonia synthesis.
India NGHM: ~5 Mt/yr green H₂ by 2030, ~125 GW associated renewable capacity, SIGHT incentives for electrolyser manufacturing and H₂ production. Strategic overlap with NEOM in target export markets (EU under RED III/CBAM, Japan/Korea ammonia co-firing). India's cost advantage lies in domestic demand (refining, fertiliser) and manufacturing scale; NEOM's lies in renewable resource quality and committed offtake.
Cluster 7 · What it gives the world
A proof point for green hydrogen at scale
If NEOM works, it proves that gigawatt-scale green hydrogen and ammonia can be built and financed — a template for clean-fuel exports from sun-rich regions to industrial buyers worldwide.
Lots of people talk about green hydrogen, but very few projects this big have actually been funded and built. NEOM is one of the first to reach that point at full scale. If it delivers, it shows the world that clean fuel can be made cheaply in sunny deserts and shipped to factories and ships that can't easily go electric. That would make NEOM a model copied in Australia, North Africa, Chile, India and elsewhere.
As one of the first gigawatt-scale green-hydrogen-to-ammonia projects to reach financial close and construction, NEOM is a bankability and engineering proof point: demonstrating offtake-backed financing, integration of variable renewables with electrolysis at scale, and an export pathway via ammonia. Success would accelerate similar projects globally and help establish a tradable green-molecule market.
Significance: first-of-a-kind at multi-GW scale with committed long-term offtake; precedent for project-financing green hydrogen; validation of dynamic green-ammonia synthesis. Demonstration effects span technology (electrolyser scale-up), commercial (offtake structuring), and policy (certification of "green" molecules for import schemes). Contributes evidence to IEA/IRENA cost-trajectory analyses for renewable hydrogen.
Cluster 8 · History
From announcement to construction
NEOM Green Hydrogen was announced in 2020, formed its joint venture, reached financial close in 2023, and is under construction toward production around 2026–2027.
The project was first announced in 2020 as part of NEOM, Saudi Arabia's huge new development. The three partners formed their company, signed the deal for Air Products to buy the ammonia, and in 2023 secured the roughly $8.4 billion needed to build it — a moment called "financial close." Construction has been under way since, with the first green hydrogen targeted for around 2026 to 2027.
Timeline: announced July 2020; JV (ACWA Power, Air Products, NEOM) established; thyssenkrupp selected for electrolysers; financial close May 2023 at ~US$8.4 bn with extensive project-finance debt; construction ongoing; first production targeted ~2026–2027. Targets and dates are subject to change as with any first-of-a-kind megaproject.
Milestones: 2020 announcement; offtake agreement with Air Products; thyssenkrupp nucera electrolyser award; 2023 financial close (~US$8.4 bn, ~US$6.1 bn debt reported) — described as one of the world's largest green-hydrogen project financings; phased construction at Oxagon. Schedule risk and cost evolution are inherent to first-of-a-kind scale.
Cluster 9 · Risks & controversies
The honest difficulties
Green hydrogen at this scale faces real questions: high cost versus grey hydrogen, first-of-a-kind execution risk, ammonia's toxicity, and the broader controversies around NEOM itself.
Green hydrogen still costs more than the dirty kind made from gas, so it needs customers willing to pay extra or government support. Building something this big and new for the first time is risky and often runs late or over budget. Ammonia is also toxic and must be handled with great care. And NEOM, the wider mega-project it belongs to, has faced criticism over its cost, its displacement of local people, and whether parts of it are realistic.
Key risks: cost competitiveness (green H₂ remains more expensive than grey/blue without policy support or green premiums); first-of-a-kind execution and schedule risk; dynamic operation of electrolysis and ammonia synthesis under variable renewables; ammonia toxicity and safety in handling and shipping; demand uncertainty for green ammonia. Separately, the broader NEOM development has drawn human-rights and feasibility criticism, distinct from the hydrogen plant's engineering.
Risk register: LCOH/LCOA vs grey benchmarks absent carbon pricing or premiums; technology scale-up and dynamic-load integration; offtake/demand maturation in EU/Asia; NOx/ammonia-slip and toxicity management; certification of "green" status under importing-market rules. Reputational/context risk from the wider NEOM programme (reported costs, displacement of the Huwaitat community, feasibility debates) is documented separately from project engineering.
Cluster 10 · Future
Where it goes from here
NEOM's near-term future is execution — bringing it online and proving the economics. Its longer significance is whether it anchors a global green-ammonia trade.
The big test is simply getting it running and showing the numbers work. If they do, expect more projects like it — and NEOM could become a major supplier of clean fuel to Europe and Asia. The world is watching to see whether green hydrogen moves from promise to a normal, traded commodity, and NEOM is one of the projects that will help decide that.
Outlook: commissioning and ramp toward nameplate; demonstrating delivered green-ammonia cost and reliability; expansion potential within NEOM's broader energy plans; contribution to an emerging international green-ammonia market serving shipping, power co-firing and fertiliser. Policy support (EU import mechanisms, Asian offtake) will shape demand and replication.
Trajectory hinges on delivered LCOA, offtake expansion beyond the anchor agreement, and maturation of green-ammonia end-uses (marine fuel standards, co-firing mandates, DRI steel). NEOM's data will inform whether multi-GW green hydrogen scales globally this decade or remains policy-dependent. Watch certification regimes and shipping-fuel adoption as leading indicators.
People also ask
Common questions about NEOM Green Hydrogen
Is NEOM the largest green-hydrogen project in the world?
It is among the largest green-hydrogen projects to reach financial close and construction, with ~4 GW of renewables and a ~600 t/day hydrogen target. Other very large projects are planned, so "one of the largest" is the accurate description. Source: NGHC
It is among the largest green-hydrogen projects to reach financial close and construction, with ~4 GW of renewables and a ~600 t/day hydrogen target. Other very large projects are planned, so "one of the largest" is the accurate description. Source: NGHC
Who owns NEOM Green Hydrogen?
It is an equal joint venture of ACWA Power, Air Products, and NEOM. Air Products is the exclusive buyer of the green ammonia. Source: ACWA Power
It is an equal joint venture of ACWA Power, Air Products, and NEOM. Air Products is the exclusive buyer of the green ammonia. Source: ACWA Power
Why does it make ammonia instead of hydrogen?
Pure hydrogen is very hard to ship. Ammonia liquefies easily and rides on existing global trade infrastructure, so the hydrogen is converted to ammonia for export and can be used directly or converted back. Source: IEA
Pure hydrogen is very hard to ship. Ammonia liquefies easily and rides on existing global trade infrastructure, so the hydrogen is converted to ammonia for export and can be used directly or converted back. Source: IEA
What makes the hydrogen "green"?
The electricity comes entirely from dedicated solar and wind, so the hydrogen is made with essentially no carbon emissions — unlike grey hydrogen made from natural gas. Source: IRENA
The electricity comes entirely from dedicated solar and wind, so the hydrogen is made with essentially no carbon emissions — unlike grey hydrogen made from natural gas. Source: IRENA
When will it start producing?
Production is targeted for around 2026–2027, following financial close in 2023. As a first-of-a-kind megaproject, timelines can shift. Source: Air Products
Production is targeted for around 2026–2027, following financial close in 2023. As a first-of-a-kind megaproject, timelines can shift. Source: Air Products
How does it compare to India's hydrogen plans?
India's National Green Hydrogen Mission targets ~5 Mt/yr by 2030; NEOM is a single flagship project India benchmarks against, and the two could compete for the same export buyers. Source: MNRE
India's National Green Hydrogen Mission targets ~5 Mt/yr by 2030; NEOM is a single flagship project India benchmarks against, and the two could compete for the same export buyers. Source: MNRE
Connected to
Where this sits in the codex
NEOM connects to hydrogen as a source, to the solar and wind that power it, and to the green-ammonia export story.
Sources
Every source used on this page
All figures on this page are documented from the named institutional sources below. Project figures are targets that may change.
- NEOM Green Hydrogen Company (NGHC) — project owner; scale and design
- ACWA Power — JV partner
- Air Products — JV partner, integrator, ammonia offtaker
- NEOM — development context
- thyssenkrupp nucera — electrolyser technology
- IEA Hydrogen — technology and market context
- IRENA — green hydrogen and ammonia context
- MNRE / National Green Hydrogen Mission — India context
Capacity, output and investment figures (~4 GW renewables, ~600 t/day H₂, ~1.2 Mt/yr ammonia, ~US$8.4 bn) are project targets as documented by NGHC and its partners and may change as construction proceeds. Production timing (~2026–2027) is a target. The GPS figure is approximate for the Oxagon/NEOM area.
Provenance
How this page was made
This page documents what named institutional sources record about the NEOM Green Hydrogen Project. It is a record of documentation, not a recommendation. Project figures are targets and were last verified June 2026. Energy data changes — always confirm at the linked primary source before relying on any number.
Entry type: asset · Confidence: high · Last reviewed: 2026-06-29 · Publisher: The Codex, Mumbai, India · Contact: hello@thecodex.expert