Hydrogen Offtake Agreement: 9 Terms to Check Before FID
A hydrogen offtake agreement can help turn a proposed plant into a financeable project—but only when the buyer, volume, price, delivery obligations and conditions are credible. A letter expressing interest may support early conversations. It does not, by itself, establish revenue that a developer or lender can rely on.
This is the question to ask before a final investment decision (FID): If the plant operates as planned, who must buy the hydrogen, how much must they buy, what will they pay, and what happens if either party cannot perform? The answer matters more than the number of logos on a project announcement.
Why signed hydrogen demand is not necessarily firm demand
The International Energy Agency's Global Hydrogen Review 2026 reports that new offtake agreements signed in 2025 covered approximately 1.7 million tonnes of low-emissions hydrogen per year, similar to 2024. Only about one-fifth of the newly signed volume involved firm offtake commitments. The IEA identifies insufficient firm demand as a major barrier to low-emissions hydrogen investment. Source: IEA, June 2026.
The distinction is practical. A developer may have attractive discussions with several buyers, yet still face unanswered questions about the enforceable purchase obligation, payment security, carbon-intensity requirement or delivery point. Before paying for advanced engineering, separate expressed interest from contracted commercial evidence.
LOI, term sheet or firm agreement: which evidence do you actually have?
Commercial documents vary by jurisdiction and wording, so their legal effect must be checked rather than inferred from their title.
| Evidence stage | What it can demonstrate | What remains uncertain |
|---|---|---|
| Buyer inquiry or meeting | An identifiable potential customer and use case | Technical fit, price, volumes and any obligation to buy |
| Letter of intent (LOI) or memorandum of understanding | A possible commercial relationship and an outline of interest | Most proposed purchase terms may be non-binding; some provisions can be binding |
| Indicative term sheet | Parties are discussing volume, tenor, specification, price and risk allocation | Negotiated terms may not be agreed or enforceable |
| Signed definitive agreement with conditions | A documented contract framework | Obligations may depend on permits, FID, funding, certification or other conditions precedent |
| Effective firm purchase commitment | A clearer basis for contracted demand | Counterparty credit, remedies, termination rights and performance risks still need assessment |
Important: An agreement can be signed but conditional, and a document called an LOI can include binding clauses. Review actual obligations and conditions with qualified counsel. The label alone is not a bankability test.
The nine terms that deserve an explicit answer
1. Who is the buyer—and who stands behind its payments?
Identify the legal contracting entity, not just the corporate group's brand. Determine whether the buyer has a credible operating need for hydrogen and the ability to pay over the contract period. A buyer's stated decarbonisation ambitions are not the same thing as contracted purchasing capacity.
Ask for: the counterparty name, intended industrial use, relevant credit information, guarantee structure if proposed, and the decision-maker empowered to sign.
2. What exactly will be delivered?
“Green hydrogen” is not a complete product specification. A usable contract needs the physical product, purity, pressure, delivery condition, tolerances and applicable measurement method. If the product is ammonia or another hydrogen derivative, write the correct product and unit instead of treating hydrogen-equivalent figures as interchangeable with tonnes of delivered material.
Certification and carbon-intensity requirements also need a defined methodology, responsible party and evidence process. Requirements can differ by market and scheme.
Ask for: a product specification sheet, certification obligations and who carries the cost if the product does not qualify.
3. How much must the buyer take—and on what schedule?
Annual headline tonnage is only the beginning. Examine monthly and daily nominations, ramp-up years, minimum quantity, maximum variation, and the difference between an option to buy and a firm obligation.
A 10,000-tonne-per-year plant with a buyer interested in 6,000 tonnes is not automatically 60% contracted. Check the actual enforceable minimum, the start date and the exceptions.
Ask for: yearly contracted volumes, minimum-take or take-or-pay provisions (if any), nomination rules and flexibility bands.
4. Does the contract last long enough to support the project plan?
Compare the agreement's effective term with the project's construction schedule, ramp-up, financing tenor and economic life. Short contracts are not inherently wrong, but a short revenue horizon can leave substantial merchant-price risk.
One real-world design is H2Global's market-making mechanism. It describes 10-year, fixed-price purchase contracts on the supply side alongside one-year sales agreements on the demand side, with an intermediary and funding mechanism addressing the price difference. This is an example of how contracts can be structured—not a universal term for private hydrogen deals. Source: H2Global mechanism.
Ask for: contract commencement, long-stop dates, renewal rights and what happens if commissioning slips.
5. What is the price—and what can change it?
A meaningful quote specifies its unit and boundary: dollars per kilogram at the plant gate is not the same thing as dollars per kilogram delivered to a factory. Examine escalation, indexation, currency, certification premiums, taxes, electricity-linked adjustments and any reopeners.
A fixed price improves visibility but may expose one party to input-cost changes; indexed prices allocate risk differently. Neither is automatically preferable without testing the economics.
Ask for: a price schedule, formula inputs, adjustment dates and a definition of what is included.
6. Where does responsibility transfer?
The delivery point determines who bears compression, storage, trucking, pipeline use, liquefaction or reconversion, depending on the product and route. It also influences insurance, metering, title and loss allocation.
A plant-gate production cost cannot by itself establish delivered-margin feasibility. H2Hub's Storage & Transport Lab helps developers consider the route before assuming a contract price is sufficient.
Ask for: a named transfer point, logistics responsibilities, transport availability and the approach to measuring delivered quantity.
7. Can the production profile satisfy the buyer's demand?
Electrolysers supplied by variable renewable power may not produce a steady hourly stream. A buyer may need continuous feedstock for ammonia, refining or other industrial processes. Compare the delivery obligation, not just the annual totals, with a realistic hourly plant dispatch and any buffer storage or backup supply.
A nameplate output calculation cannot answer this. A project could meet annual production in a model and still miss a daily delivery requirement without storage, grid imports or a different operating strategy.
Ask for: a time-based delivery profile, allowable shortfalls, buffer strategy and the cost of meeting firm delivery windows.
8. What credit protection and remedies exist?
Even a clear purchase quantity is exposed to non-payment or counterparty distress. Credit support can take different forms depending on the deal, such as parent guarantees, letters of credit or other negotiated security. Also examine payment terms, cure periods and remedies for either party's failure to perform.
“Take-or-pay” should not be treated as a magic guarantee of income: its specific triggers, exceptions, credit backing and enforceability matter.
Ask for: payment security, default provisions and a realistic process for enforcing the agreement.
9. Which conditions must be satisfied before the agreement is effective?
A contract may depend on financing, the buyer's plant being ready, regulatory approvals, certification eligibility, interconnection, transport infrastructure or a particular commissioning date. Those conditions can delay or defeat the expected revenue case.
Ask for: a conditions-precedent register with an owner, evidence required, deadline and consequence if not satisfied. Track these as development gates rather than quietly assuming they will be resolved.
Worked example: how much of a hydrogen project is truly supported?
Consider a purely illustrative hydrogen project designed to produce 12,000 tonnes per year. No company, location or H2Hub simulation is implied.
| Commercial evidence | Illustrative amount | What it means |
|---|---|---|
| Proposed annual plant output | 12,000 t/yr | Design target; not a production forecast |
| Non-binding buyer LOIs | 8,000 t/yr | Expressions of demand, not firm purchase commitments |
| Signed purchase agreement's maximum annual volume | 3,000 t/yr | Up to 25% of nameplate annual output may be covered, subject to contract terms |
| Illustrative minimum-take obligation: 60% of 3,000 t/yr | 1,800 t/yr | Equivalent to 15% of proposed plant output, if the minimum is effective and enforceable |
The arithmetic is simple: 3,000 ÷ 12,000 = 25% maximum contracted-volume coverage; 1,800 ÷ 12,000 = 15% illustrative minimum-take coverage.
But do not add the 8,000 tonnes of LOIs to the 3,000-tonne agreement without first checking overlap. The same buyer or volume can appear in more than one commercial document. Nor should the 1,800-tonne minimum be called “bankable revenue” before considering price, conditions precedent, counterparty credit and legal terms.
The development decision becomes clear: before increasing capital commitments, find out who could purchase the uncovered production, whether the buyer can absorb the actual production profile, and whether the contracted price exceeds the delivered cost under realistic downside scenarios.
A practical evidence register for your next buyer meeting
For each potential buyer, record the following fields in a single table: legal entity; industrial use; product and purity; carbon-intensity standard; annual volume; minimum-take volume; delivery frequency; price basis; logistics boundary; intended start date; proposed tenor; status of definitive contract; outstanding conditions; credit support; evidence source; responsible person; next decision date.
Then sort the open questions into three groups:
- Commercial: price, volume, creditworthiness, contracting authority and enforceable obligations.
- Physical: production profile, storage, transport route, certification evidence and receiving-facility readiness.
- Decision gates: permits, financing, commissioning dates, approvals and conditions precedent.
A development team can use this register to distinguish what is known from what is only assumed. That separation is valuable even when the final commercial structure changes.
What the H2Global example teaches—and what it does not
H2Global's public mechanism pairs longer-term supply purchasing with shorter-term sales to buyers, using an intermediary and external funding to cover a price gap. Its pilot auction selected Fertiglobe to supply renewable ammonia to European ports, with deliveries planned to begin in 2027 subject to project readiness and supply availability. Sources: H2Global mechanism and pilot auction announcement.
The transferable lesson is not that every developer can obtain a public price-gap subsidy or a 10-year contract. It is that term, buyer demand, delivery specification and risk allocation must fit together. A producer may need long-term price certainty while end customers remain unwilling to commit for as long. A project-finance plan has to confront that mismatch rather than conceal it inside a forecast.
How H2Hub fits before you spend on advanced studies
Start by defining the project, its intended product, location and electrolyser capacity in the H2Hub project workspace. Use the Offtake Lab to identify unanswered contract-readiness questions; its checklist addresses volumes, tenor, price, credit and delivery. The Offtaker Matching Engine can help explore potential matches against product, geography, specifications and delivery needs.
For a meaningful economics comparison, distinguish preliminary plant-gate costs from delivered costs and test whether the proposed operating profile could meet the buyer's nominated volumes. H2Hub supports early project screening, dispatch-based analysis and stress tests; it does not certify a buyer's credit, validate contractual enforceability, replace site engineering, or provide legal or investment advice.
Start your first hydrogen project in H2Hub — free. Use the result to identify which assumptions require a vendor quote, commercial discussion or professional due diligence before FID.
Key takeaway
The number to watch is not “tonnes of buyer interest.” It is deliverable, enforceable and credit-supported purchasing demand, on terms that survive the project's operating and cost realities. Use an evidence register, avoid double-counting LOIs, reconcile the delivery schedule with real dispatch and escalate unresolved contract terms before committing development capital.
Scope note: This is an educational, pre-feasibility screening guide, not a model contract or legal, financial, engineering or investment advice. Example numbers above are hypothetical arithmetic, not predictions or outputs generated by H2Hub. Commercial and legal conclusions require review of actual documents by qualified professionals.
Primary sources and further reading
- International Energy Agency, Global Hydrogen Review 2026 — Demand (18 June 2026), including 2025 hydrogen offtake volumes and the share considered firm: https://www.iea.org/reports/global-hydrogen-review-2026/demand
- International Energy Agency, Global Hydrogen Review 2026 — Executive summary: https://www.iea.org/reports/global-hydrogen-review-2026/executive-summary
- H2Global Foundation, The H2Global mechanism, explaining contract duration, pricing and the intermediary role: https://h2-global.org/the-h2global-instrument/
- H2Global Foundation, Results of the pilot auction, announcement of renewable-ammonia contract: https://h2-global.org/news/results-of-the-pilot-auction/
- H2Hub by ReneEnergy, Offtake Lab, developer workflow and checklist: https://h2hub.reneenergy.com/labs/offtake