Green Hydrogen Feasibility Study: 9 Factors to Check Before Investing

A green hydrogen feasibility study helps developers, industrial buyers and investors decide whether a proposed project is technically viable, commercially credible and practical to build and operate before major capital is committed. It connects renewable power, electrolyser performance, water, infrastructure, customer demand, compliance and project finance into one evidence-based assessment.

Green hydrogen is produced by splitting water through electrolysis using renewable electricity. Its project economics are highly site-specific. Electricity price and availability, electrolyser utilisation, capital cost, financing, storage and delivery arrangements can all materially change the levelized cost of hydrogen (LCOH). The World Bank’s ESMAP review of electrolyser technologies also highlights the importance of electricity costs, utilisation and wider project economics.

This guide outlines nine areas to assess before progressing from concept to engineering design or investment approval.

01Renewable energy availability and hourly matching

Renewable power is often the most influential input to green hydrogen economics. A feasibility study should use location-specific solar and wind resource data, expected generation profiles, grid access and realistic power purchase agreement (PPA) terms. Annual energy totals alone are not enough: hourly variation determines when the electrolyser can operate, how much energy may be curtailed and whether storage or complementary generation is needed.

• Assess solar and wind resource quality, seasonality and forecast uncertainty.
• Compare dedicated renewable generation, grid-connected supply and hybrid configurations.
• Model hourly power availability against the electrolyser operating envelope.
• Account for transmission, wheeling, banking, balancing and grid charges where applicable.

Test multiple cases rather than relying on a single best-case power price. Sensitivity analysis should show how different capacity factors and electricity tariffs change LCOH.

02Electrolyser technology and sizing

Alkaline and proton exchange membrane (PEM) electrolysers are established options, while anion exchange membrane (AEM) and solid oxide electrolysis may be relevant in specific contexts depending on maturity, operating conditions and project requirements. The right choice is not simply the technology with the highest quoted efficiency. It must fit the renewable power profile, required production rate, water quality, maintenance strategy, supplier capability and financing expectations.

• Compare realistic efficiency curves and minimum stable operating loads.
• Evaluate ramping behaviour, degradation, stack replacement and service support.
• Check installed system costs, balance-of-plant scope, warranties and guarantees.
• Model alternative module sizes and redundancy to balance uptime against capital cost.

For background, see our guide to next-generation electrolyser technologies and our overview of how green hydrogen production works.

03Water supply, treatment and environmental constraints

Electrolysis requires suitably treated water, and the project may also need cooling, cleaning and other utility services. A feasibility study should establish the source, sustainable availability, treatment requirements, discharge route and cost. Water abstraction or desalination may introduce permitting, energy use, brine management and community considerations.

• Confirm source-water quantity and quality across seasonal conditions.
• Estimate purification, polishing, cooling and wastewater treatment needs.
• Identify water rights, abstraction limits, discharge standards and permit lead times.
• Assess whether alternative sources or water-reuse options are practical.

04Storage, compression and delivery infrastructure

Hydrogen production and customer demand may not occur at the same rate or location. Storage and delivery can therefore be central to system design. The assessment should define the required purity, pressure, delivery schedule and end-use interface, then compare compression, buffer storage, tube trailers, pipelines or other suitable options. The appropriate solution depends on throughput, distance, operating pattern and customer requirements.

Include compression power, storage equipment, safety distances, leak detection, materials compatibility, maintenance and transport logistics in the cost and risk model. Our related article covers hydrogen energy storage and renewable-grid balancing.

05LCOH, capital costs and financing assumptions

The levelized cost of hydrogen is useful for comparing scenarios, but it is only as reliable as the assumptions behind it. The model should document capital expenditure (CAPEX), operating expenditure (OPEX), renewable power costs, electrolyser performance, replacement schedules, water treatment, compression, storage, financing, taxes and expected production. Clearly distinguish plant-gate production cost from the cost of delivering hydrogen to the customer.

Use a transparent model with base, downside and upside cases. Sensitivities should typically include electricity price, electrolyser utilisation, CAPEX, efficiency, financing cost, construction schedule, stack life and delivered volume. The IFC framework for assessing green hydrogen potential in emerging markets discusses the role of power economics, scale, efficiency and storage or transport costs.

A low headline LCOH should not be treated as proof of bankability. Lenders and investors also need to understand downside exposure, model transparency, contingencies, revenue certainty and who carries each risk.

06Offtake demand and commercial bankability

A technically sound plant can still struggle if there is no credible route to market. The feasibility study should identify likely customers, their required volumes and delivery specifications, willingness to pay, contract duration and the alternatives available to them. It should also test whether the proposed production profile aligns with demand and whether buyers can accept take-or-pay or other volume commitments.

• Validate demand using evidence rather than only high-level market forecasts.
• Define product specification, delivery point, pressure, purity and availability.
• Evaluate pricing mechanisms, indexation, creditworthiness and contract tenor.
• Test how lower offtake, delayed commissioning or a price change affects cash flow.

Explore the commercial side through our page on hydrogen offtake agreements and commercial strategy.

07Certification, regulation and incentive eligibility

Eligibility for incentives, carbon-intensity thresholds and renewable hydrogen certification depends on the jurisdiction and the rules in force for the project. Requirements may cover renewable electricity sourcing, additionality, temporal and geographic correlation, emissions accounting, safety, environmental permits and reporting. A feasibility study should identify which requirements apply, which evidence will be needed and when compliance must be demonstrated.

Do not assume that a project qualifies for a subsidy or premium market simply because it uses renewable electricity. Confirm the applicable rules with qualified legal, tax and certification advisers, and model the project both with and without uncertain incentives.

08Site, grid and infrastructure readiness

Land availability is only one part of site suitability. Check geotechnical conditions, flood and climate exposure, access roads, grid connection capacity, renewable resource proximity, water infrastructure, pipeline or transport access, emergency response and nearby industrial demand. Early screening can identify constraints before detailed engineering makes changes expensive.

Map the critical permits, land rights, grid studies, environmental assessments and third-party interfaces. Include realistic approval durations and dependencies in the project schedule.

09Safety, execution and operational risk

Hydrogen’s physical properties require appropriate engineering and operational controls. A feasibility study should screen process hazards, hazardous areas, ventilation, detection, emergency shutdown, pressure systems, materials compatibility and separation distances. It should also consider construction interfaces, supplier delivery, commissioning, maintenance access, spare parts and operator training.

Early risk reviews do not replace detailed engineering or formal safety studies, but they help identify design requirements and cost allowances before the project advances. Read our guide to green hydrogen safety for production, storage and transport.

What should a feasibility study deliver?

A decision-ready assessment should leave the project team with more than a single production-cost figure. Depending on scope and project maturity, useful outputs include:

• A site and resource suitability assessment.
• Hourly renewable-power and electrolyser operating scenarios.
• Technology and balance-of-plant comparison.
• Transparent CAPEX, OPEX and LCOH model with sensitivity cases.
• Water, storage, compression and delivery concept.
• Offtake, certification, permitting and infrastructure gap analysis.
• Risk register, key assumptions, data gaps and recommended next steps.
• A staged roadmap toward pre-FEED, FEED and an investment decision.

The scope should be proportionate to the project stage. Early screening may use ranges and desktop evidence; a bankable assessment requires stronger supplier data, resource studies, commercial evidence and clearly documented assumptions.

Frequently asked questions

What is a green hydrogen feasibility study?

It is a structured assessment of whether a proposed green hydrogen project is technically viable, economically credible, commercially supportable and feasible to permit and operate. It identifies key assumptions, risks, data gaps and next steps before major investment.

How long does a green hydrogen feasibility study take?

Timing depends on project scale, available data, site complexity, supplier engagement and the depth of modelling required. An early desktop screening may take weeks, while a detailed bankability assessment can take longer. A realistic schedule should include data collection, stakeholder input and review cycles.

What has the biggest effect on the levelized cost of hydrogen?

Renewable electricity price and availability are often major drivers, alongside electrolyser utilisation, system efficiency, capital cost and financing. Storage, compression, water treatment and delivery costs can also be material, especially when estimating delivered rather than plant-gate cost.

Which electrolyser technology is best for a green hydrogen project?

There is no single best technology for every project. Selection depends on power profile, operating range, efficiency, degradation, installed cost, supplier track record, service support and the project’s risk tolerance. Compare technologies using consistent assumptions and project-specific operating scenarios.

Does a feasibility study guarantee that a project will be bankable?

No. It can improve the quality of investment decisions by testing assumptions and identifying risks, but bankability also depends on credible offtake, financing terms, permits, contracts, technology performance, execution capability and market conditions.

What is the difference between a feasibility study and FEED?

A feasibility study compares options and establishes whether the project merits further development. Front-End Engineering Design (FEED) develops a selected concept in greater technical detail to support cost definition, procurement planning, contracting and subsequent investment decisions.

Should incentives be included in the financial model?

Yes, when relevant, but eligibility and timing should be verified. Model the base case transparently and test scenarios with incentives delayed, reduced or unavailable so decision-makers can understand the project’s underlying economics.

When should a developer commission a feasibility study?

Ideally before locking in major equipment, land, power-supply or offtake commitments. Early analysis helps compare locations and configurations while changes are still relatively inexpensive, and it identifies the evidence needed for the next development stage.

Move from concept to an evidence-based decision

The strongest green hydrogen projects connect renewable power, electrolyser operation, water, infrastructure, offtake, compliance and finance in one consistent assessment. A well-scoped study makes trade-offs visible, tests downside cases and gives stakeholders a practical route toward the next investment gate.

Learn more about our green hydrogen feasibility and techno-economic assessment services, or contact our team to discuss your project’s location, capacity, power supply and intended market.

Further reading and technical references

• World Bank ESMAP: Electrolyzers for Hydrogen Production
• IFC: A Framework for Assessing Green Hydrogen Potential in Emerging Markets