Renewable hydrogen consulting

We integrate strategy, guidance, technology, industrial applications, regulation and financing into our clients' hydrogen-related decision-making. 

We help you make decisions and put them into action: we analyse the profitability of your investment, select the optimal technology and support you with technical and financial expertise from the initial idea through to project implementation.

At this stage, the client is exploring hydrogen: what it is, what it could mean for their organisation and how it could fit within their business or project. This is where vision meets feasibility. We help companies and public authorities navigate the initial uncertainty and define a clear roadmap.

  • Preparation of conceptual studies.
  • Feasibility studies.
  • Regulatory, economic, safety and standards analysis.
  • Project due diligence.

We turn your vision into executable projects. We support you throughout the entire project lifecycle, integrating technical design, economic structuring and alignment with public funding instruments. Our team acts as your technology partner, ensuring the robustness of every proposal.

  • Preparation of conceptual studies and techno-economic analyses for technology selection.
  • Project Due Diligence: We conduct specialised technical audits to reduce legal and operational uncertainty.
  • We align each solution with decarbonisation regulations, safety standards and technical frameworks (EU, national and regional).
  • We analyse costs and technological risks. We ensure that the technology is compatible with your existing facilities (electricity grid, thermal processes, etc.) to achieve seamless integration.

We support companies and consortia in preparing technical and financial documentation, assisting them throughout the entire submission process. We provide specialised technical and economic advice on technology selection, engineering decisions, asset management, acquisitions and investments.  

  • Financing and grants: Preparation of technical documentation and structuring of supporting documents to optimise regulatory eligibility and access to public funding.
  • Tender management (RFQ): Preparation of requests for quotation and supplier selection.
  • Permitting and approvals: Comprehensive support with administrative procedures and legal feasibility before public authorities.
  • Asset and investment management: Specialist advice on the acquisition of or investment in hydrogen projects.

Technical management and institutional advisory services

The management of technical secretariats for international organisations involved in hydrogen development is a strategic activity that sets ARIEMA apart in the hydrogen consultancy sector. The group currently serves as technical secretariat for the IEA Hydrogen TCP of the International Energy Agency (IEA) and the European Hydrogen Safety Panel (EHSP) of the Clean Hydrogen Partnership, in consortium with IDOM.

Do you need a roadmap for your hydrogen projects? 
Contact our team.

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How we work with our clients

We turn your idea into a technically sound project from the outset. We assess its feasibility and substantiate every step to help ensure the profitability of your investment and give you confidence in your decision-making.

We develop bespoke solutions that adapt as the project progresses. We optimise every variable to ensure an efficient, scalable and technically robust system.

We act as your single point of contact and strategic partner. We monitor progress and assess the situation at every stage, ensuring seamless continuity of information between phases.

We maximise the return on every resource invested. We provide continuous monitoring and assessment at every stage of the project, reducing uncertainty so that you can deliver your project with complete confidence and without unexpected issues.

ARIEMA's consultancy portfolio includes more than 100 completed projects across our three service lines, supporting over 25 clients in sectors including energy, gas, infrastructure, transport and mobility, renewable energy and engineering. Our projects span Spain, Europe, Africa and Latin America.

Discover our success stories

Financial modelling and technical review for IF25
  • 2026
  • European Union
  • Production and processing

Financial modelling and technical review for IF25

Financial modelling and technical review for the BEH
  • 2026
  • European Union
  • Renewable Hydrogen Production (RFNBO)

Financial modelling and technical review for the BEH

Economic and market analysis of H2 gensets
  • 2024
  • Spain
  • Transport

Economic and market analysis of H2 gensets

Integration of renewable hydrogen into bus fleets
  • 2024
  • Spain
  • Transport

Integration of renewable hydrogen into bus fleets

Feasibility analysis for hydrogen production
  • 2023
  • Colombia
  • Chemical

Feasibility analysis for hydrogen production

Hydrogen Roadmap in Morocco
  • 2022
  • Marruecos
  • Strategy

Hydrogen Roadmap in Morocco

ZAHYR Hydrogen Valley
  • 2022
  • Bulgaria
  • Hydrogen Valley

ZAHYR Hydrogen Valley

Conceptual engineering for a 200 MW electrolysis plant
  • 2024
  • Spain
  • Project development

Conceptual engineering for a 200 MW electrolysis plant

Techno-economic analysis for a hydrogen project
  • 2024
  • Spain
  • Renewable Energy Asset Management

Techno-economic analysis for a hydrogen project

Sectors we work with

Energy and energy transition

  • Operators and Distributors: Gas companies, utilities and local energy operators. 
  • Green Hydrogen: Industrial consortia, hydrogen project SPVs and the entire hydrogen value chain. 
  • Governance: International energy governance bodies and sector agencies.
Energy and Energy Transition
Public Administration and Institutions

Public administration and institutions

  • Government and Regulation: Ministries, Autonomous Communities and public authorities.
  • International Organisations: Development agencies, international cooperation organisations and European technical panels on safety and regulation.
  • Funding Management: Organisations awarded PERTE and IDAE funding and regional grants.

Energy-intensive manufacturing

  • Energy-intensive sectors, including food, ceramics, chemicals, cement and metallurgy, helping to optimise their competitiveness and decarbonisation.
Energy-intensive manufacturing
Innovation, I+D and strategic logistics

Innovation, I+D and strategic logistics

  • Applied R&D: Technology consortia, innovation platforms and European research projects. 
  • Critical Infrastructure: Port authorities, maritime logistics and transport operators.

Consulting team experience

Questions we answer

We analyse the criteria of funding calls (such as business models or innovation) and align your project with decarbonisation regulations to maximise its chances of success.

We anticipate regulatory changes (EU, national and regional). We assess the economic viability of your roadmap against future scenarios.

As developers of our own electrolysis technology, we have first-hand knowledge of the associated costs and technological risks. We provide objective advice on selecting electrolysers and auxiliary equipment.

We understand that discretion is essential in this sector. We work under strict confidentiality protocols, particularly when applying for funding calls or tenders that have not yet been made public.

The regulatory framework for hydrogen is constantly evolving. We continuously monitor European, national and regional regulations to ensure that your project complies with all legal requirements.

We act as an independent third party. We analyse your operational requirements and help you prepare requests for quotation (RFQs) to select the solution that best suits your business case, without bias.

We help you assess whether hydrogen is the optimal solution for your plant, design a tailored plan to decarbonise your operations and ensure strict compliance with current legislation.

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