After the hype – what makes a viable hydrogen energy project?
Looking beyond the green hydrogen headlines, we investigate what makes a bankable hydrogen project in the EU and UK, informed from real market experience.

Brigitte Danks
Sustainable Energy Transaction Consultant
James Dawkins
Associate
Last updated: March 2026
With many hydrogen and hydrogen derivative projects shelved or delayed in the last 12 months, some market participants are wondering whether green hydrogen is still a viable investment and whether it will continue to have a role in the energy transition.
While the challenges facing the hydrogen sector are real and significant, hydrogen is still required to meet EU and UK decarbonisation targets. The role it has to play is primarily in hard-to-electrify sectors (heavy industry, long-haul transport) but also via energy system integration, with hydrogen storage, and low-emission drop-in fuels (PtX or e-fuels). The market may now be entering a new phase of growth at a more realistic pace informed by data and experience, allowing the market to prioritise projects that are bankable and deliverable.
A central challenge has been the difficulty of securing offtake, driven by the high cost of green hydrogen and the requirement for new end-use infrastructure – costs that are compounded by stringent legislative and certification requirements.
Alongside this, a number of projects have struggled because they have not had strong enough fundamentals to attract investment. Recent cancellations commonly reflect site-specific constraints (including planning and consents), challenges securing renewable power and water, insufficiently robust business cases, inexperienced or under‑resourced management teams, and a lack of credible delivery planning.
By contrast, the strongest projects – those with well‑developed fundamentals, credible cost and delivery assumptions, secured or highly progressed offtake, and a clear strategic fit – are continuing to move forward. These projects reflect a more disciplined and considered approach to hydrogen’s role in the energy transition. Against this backdrop, we want to focus on how investable hydrogen projects can be distinguished from the rest.
What defines a hydrogen project with strong fundamentals?
There are four fundamental pillars that underpin viable hydrogen projects: secured offtake, project and delivery feasibility, investor attractiveness and strategic alignment.
Pillar 1: demand first
The backbone of a strong green hydrogen project is demand and revenue certainty – we consider offtake security as a fundamental, standalone pillar. The most successful developers secure offtake agreements first, and only then shape the project around those needs. Without buyers in place from the outset, even the most elegant technical solution will struggle to attract investment.
Contractual obligations of offtake should provide financial security in order for the project to be bankable. Commodity fees should be structured including long-term, fixed-price or indexed contracts with creditworthy offtakers. Incorporating ‘take-or-pay’ provisions – where the offtaker remains liable for penalties if they terminate early, temporarily suspend offtake or reduce their committed volumes – further mitigates risk and strengthens confidence among lenders and investors.
In our experience, projects that reach final investment decision (FID) are often those where offtake is the founding motivator for the project. Conversely, we’ve seen well-engineered and well-developed projects stall due to inability to confirm offtake.
Pillar 2: Project feasibility and delivery readiness
No hydrogen project will be successful without a robust technical foundation, starting with a concept study that evaluates key items, including those listed below, progressing to a rigorous feasibility design and ultimately proceeding to front-end engineering design (FEED).
- Project feasibility is heavily reliant on realism. A smaller production capacity that is more comfortably within the remit of the developer’s experience and capability is more valuable than an impressive headline-worthy development, from an investment risk perspective. Scalability can have additional value, and for that investors want to see an appreciation of the different requirements for near-term and long-term projects.
- Strategic site selection is critical. Key factors include reliable, affordable access to renewable energy and water; permitting likelihood and timelines; ground conditions; enabling infrastructure; and proximity to offtakers, including for by‑products such as oxygen and heat. Given the high energy and water demands, these factors often drive location choice; for example, high renewable energy availability is seeing increasing green hydrogen development in the Nordics and the Iberian Peninsula.
- Regarding deliverability, securing the lowest possible cost should not be the only priority; developing realistic timelines and enlisting contractors with strong reputability and appropriate experience are critical items. From Arup’s past experience, we’ve seen low-risk deliverability demonstrated in projects that put significant time into developing a clear and robust process to managing and controlling the project, using tried and tested approaches of megaproject delivery.
- Finally, certification requirements must be carefully considered. Where certification such as Renewable Fuels of Non-Biological Origin (RFNBOs) or low‑carbon hydrogen underpins the business case, compliance with relevant EU and/or UK legislation requires proactive planning and management. Arup’s experience shows that local factors – such as grid renewable energy share and proximity to key resources – can significantly affect compliance. Recent provisions under the Hydrogen and Gas Decarbonisation Package, allowing certification of low‑carbon alternatives alongside fully renewable products in the EU, have increased flexibility for producers, although industry calls to soften renewable energy sourcing requirements persist.
Pillar 3: is the hydrogen scheme attractive to investors?
Once the critical foundational aspects are secured, further focus on risks and opportunities is required to gain interest from investors. An independent review and thorough due diligence by qualified experts is highly valuable for both investors and developers preparing for approaching the market.
- Investors are naturally conscious of risks and will thus want to see evidence of robust risk management for the project. No development project is without risks, and poor risk identification and/or lack of well-considered mitigation measures will greatly reduce investor confidence. In Arup’s experience, good risk management should be an ongoing process and is evidenced by up-to-date risk registers, cost and schedule risk assessments and robust project execution documents (including project execution plan (PEP), project objectives and project charter).
- Equally important are the capabilities of the organisation. The skills required for the different phases of the project – from project development to FID, from FID to construction, and beyond commercial operations date (COD) into operation – all vary greatly and investors will want to see that the organisation have competent skills and experience for each phase. In Arup’s experience, demonstration and/or preparation for the operational phase often takes a backseat to the earlier phases, and failing to integrate an operations and maintenance (O&M) strategy during project development creates significant investor risk.
- When it comes to contracting key roles to third parties, the contracting strategy is a critical element to ensure risk pass-through to the developer is limited to a reasonable extent and thus palatable to investors. A sound contracting strategy is one that is well understood and well defined. Limiting the number of contractors, selecting those with vested interests in the project and appropriate skills and experience, having a robust interface management strategy with clear scope delineation, and including appropriate protections in contractual clauses are all key elements. An independent Owner’s Engineer is often engaged to ensure contractual and regulatory compliance, manage interfaces, and oversee acceptance testing and commissioning. This approach mitigates project risks and offers greater assurance to investors and lenders.
- Finally, business plans must be credible and resilient. With investors increasingly sceptical of “hockey‑stick” growth, confidence depends on evidence‑based assumptions, robust sensitivity analysis, and realistic contingencies for key inputs (availability, ramp-up timelines, hydrogen pricing). Arup’s experience shows that substantiating assumptions—such as through Reliability, Availability, and Maintainability (RAM) studies—materially strengthens investor confidence.
Pillar 4: strategic alignment with energy policy
Green hydrogen is not a purely commercial market, driven by buyers and sellers; at this stage it is fundamentally shaped by policy. This makes strategic alignment a critical factor in determining whether a project will succeed.
- The strongest projects are those that fit squarely within national and regional priorities for hydrogen. In the UK and across the EU, governments have identified specific focus areas, such as decarbonising industry, heavy transport, and energy storage. Projects that align with these agendas are more likely to secure public support, regulatory approvals, and investor and offtaker interest.
- Equally important is the political stability of the host country or region, as well as more broadly. Hydrogen projects typically involve large upfront investments and long development timelines. Investors need confidence that the regulatory framework will not shift dramatically during project development, undermining project economics. A stable, predictable environment provides the reassurance that capital-intensive projects require.
- Finally, access to policy support can make or break a business case. Grants, subsidies, and mechanisms like contracts for difference (CfDs) help to bridge the gap between today’s high production costs and tomorrow’s competitive markets. The best projects are those that position themselves to qualify for these support schemes while also building resilience against future policy changes.

Successful hydrogen projects – 5 key lessons
In summary, amid the significant challenges facing the hydrogen market, the focus shifts to how investable projects can be distinguished from the rest. In our experience, successful green hydrogen projects:
- Keep it simple, with a clear project set up that’s logical and straightforward
- Secure offtake as the first piece of the development puzzle
- Are run by strong and capable management teams who have a robust plan and relevant capabilities to develop, construct and operate the project, supported by reputable contractors
- Have the appropriate contractual set up, protections and interface management strategy to limit risk pass-through to investors
- Collaborate with relevant stakeholders including local authorities and government bodies.
For investors, this is not a time to walk away but rather an opportunity to look critically at development projects and invest in high quality pioneering projects that will lead the way in the energy transformation.
Whether you're an investor seeking investment advice, a developer navigating technical and delivery risks, or a policymaker shaping the future of hydrogen, Arup offers deep expertise and proven advisory support in hydrogen strategy, due diligence and techno-commercial-financial appraisal.
Hydrogen isn’t the renewable energy silver bullet some claimed – but it’s no dead end either. Backed by policy and real, deliverable projects, it remains a critical piece of the energy transition and a space where smart investments can pay off.
Sally Prickett
UKIMEA Hydrogen and Sustainable Fuels Advisory Leader






