




































AGORA International Journal of Economical Sciences, http://univagora.ro/jour/index.php/aijes 

ISSN 2067-3310, E-ISSN 2067-7669 

Vol. 19, No. 1 (2025), pp. 37-45 

 

37 

 

HYDROGEN'S ROLE IN GREEN ECONOMY: OPPORTUNITIES AND 

CHALLENGES IN SELECTED EUROPEAN COUNTRIES 

 

M. BARTEKOVA, S. JANIKOVICOVA 

 

Maria Bartekova¹, Sabina Janikovicova² 

¹ ² University of Economics in Bratislava, Slovakia  

¹ https://orcid.org/0000-0003-2691-3185, E-mail: maria.bartekova@euba.sk  

² https://orcid.org/0009-0006-9330-1292, E-mail: sabina.janikovicova@euba.sk  

 

Abstract: Hydrogen is an important element in the transition to a green economy, with 

its potential to play a key role in the decarbonization of industry and transport within the 

European Union. The aim of this article is to analyse the differences in hydrogen production 

and consumption between selected European countries in the context of their economic 

maturity. Based on data from 2020 to 2023, a quantitative analysis was conducted including 

variables such as hydrogen production and consumption capacity and GDP per capita. Using 

non-parametric tests (Kruskal-Wallis, Dwass-Steel-Critchlow-Fligner), statistically 

significant differences were identified between groups of countries with high and low levels of 

hydrogen infrastructure development. The results confirm that higher economic performance 

of countries is closely related to a more developed hydrogen economy. The discussion 

highlights the importance of investments, regulatory frameworks and technological 

innovations in the implementation of hydrogen solutions. The article also identifies the 

challenges faced by less developed countries and recommends an approach based on support 

and cooperation within the EU. 

Keywords: European Union, Green Economy, Green Logistics, Hydrogen, Non-

parametric tests, Sustainability. 

 

1 INTRODUCTION 

The transition to a green economy is one of the key challenges of the 21st century, with 

the decarbonisation of industry and transport among its main priorities. Hydrogen, as a flexible 

energy carrier, is gaining increasing attention for its potential to contribute to reducing 

greenhouse gas emissions, diversifying energy sources and supporting innovation in the field 

of sustainable mobility. In this context, the European Union has set ambitious targets for the 

production and use of hydrogen, which, however, encounter differences in the economic and 

technological readiness of individual Member States. 

The aim of this study is to analyse the relationship between the economic performance 

of countries and the level of development of hydrogen infrastructure, specifically in the area of 

hydrogen production and consumption capacity and the number of registered hydrogen 

vehicles. Special emphasis is placed on identifying differences between countries with a high 

and low level of economic development, while the approach chosen in the work allows 

identifying potential disparities and formulating recommendations for EU policy in the area of 

supporting the development of hydrogen technologies. 

https://orcid.org/0000-0003-2691-3185
mailto:maria.bartekova@euba.sk
https://orcid.org/0009-0006-9330-1292
mailto:sabina.janikovicova@euba.sk


HYDROGEN'S ROLE IN GREEN ECONOMY: OPPORTUNITIES AND CHALLENGES IN 

SELECTED EUROPEAN COUNTRIES 

38 

 

1.1 Literature review 

Hydrogen has been at the forefront of discussions on Europe’s energy transition in 

recent years as a key element in the fight against climate change. Although plans are ambitious 

and investments are increasing, this energy carrier remains at the beginning of its journey 

towards mass use (Abbasov, 2024). The European Union has set ambitious goals to achieve 10 

million tonnes of domestic production of green hydrogen and a further 10 million tonnes from 

imports by the end of this decade, but current production of clean hydrogen remains well below 

these values. Studies show that for hydrogen technologies to be successfully implemented, 

obstacles must be overcome technological, economic and regulatory barriers. The so-called 

hydrogen valleys and national initiatives in selected European countries must play a key role 

in this (Sadik- Zada, 2021). 

 

1.1.1 Concrete steps under the European hydrogen strategy 

The European Commission plans to present an EU hydrogen strategy together with a 

strategy for the integration of European energy systems with the aim of connecting the various 

energy sectors. The primary steps the EU is considering include scaling up the development of 

hydrogen technology, increasing the production of clean hydrogen to one million tonnes per 

year and doubling the funding for the hydrogen initiative within the EU budget to €1.3 billion 

(Kovač, Paranos & Marciuš, 2021). Other measures include allocating €2-4 billion over the 

next two years to launch projects financed by the sale of emission allowances and supporting 

investments in renewable energy and hydrogen infrastructure. According to the published 

documents, the overall EU economic package should include a plan for 2021-2027 and a 

"recovery instrument" of at least half a trillion euros (Vivanco-Martín & Iranzo, 2023). 

One of the most promising concepts for the development of a hydrogen economy in 

Europe are the so-called hydrogen valleys. These are regional ecosystems within which 

hydrogen is produced, transported and used within an integrated system. Such areas could serve 

as a springboard for the creation of a larger European hydrogen economy (Sadik- Zada, 2021). 

Currently, there are only three hydrogen valleys in the EU - one in Denmark and two in 

Germany. These countries can be considered pioneers in this area. On the positive side, 

however, another 17 projects are actively developing, indicating a gradual expansion of 

hydrogen solutions across the European continent (Kumar & Lim, 2022). 

 

1.1.2 European ambitions for hydrogen valleys 

The European Commission has set itself an ambitious target of doubling the number of 

operational hydrogen valleys by 2025. The Commissioner for Innovation, Research, Culture, 

Science and Youth has highlighted their importance. According to her, hydrogen valleys are 

key to creating a European hydrogen research and innovation area. Hydrogen valleys allow 

new technologies to be integrated directly into a hydrogen ecosystem tailored to local 

requirements. This approach provides space for testing and optimizing different solutions 

before their wider deployment, which is extremely important for new and emerging 

technologies (Lagioia, Spinelli & Amicarelli, 2023). 



Maria BARTEKOVA, Sabina JANIKOVICOVA 

39 

 

1.1.3 Main challenges in the development of hydrogen technologies 

The three main obstacles can be considered regulation, permitting processes and access 

to the energy grid. Countries need clear regulation and clear permitting processes, but access 

to the energy grid is the most problematic (Zainal et al., 2024). This is essential to ensure 

sufficient renewable electricity to produce green hydrogen. Without solving this problem, it 

will be difficult to achieve the set goals for the production and use of hydrogen on the required 

scale. These challenges reflect the complexity of the transition to a hydrogen economy 

(Kakoulaki et al., 2021). 

While the European Union coordinates a common approach to the hydrogen economy, 

individual Member States are implementing their own initiatives that reflect their specific 

conditions, priorities and possibilities (Mneimneh et al., 2023). Germany and Denmark have 

emerged as European leaders in hydrogen technologies, as evidenced by the fact that these 

countries are home to three currently operational hydrogen valleys (Hashimova, 2023). 

Germany, Europe's largest economy, is investing massive resources in the development of the 

hydrogen sector, while Denmark is building on its experience with wind energy, which it plans 

to use to produce green hydrogen (van der Spek et al., 2022). In 2024, the European 

Commission, together with Spain, Lithuania and Austria, announced new financial support for 

the development of hydrogen from renewable sources through an innovation fund. These three 

Member States have joined the "Auctions as a Service" scheme in the second auction of the 

European Hydrogen Bank. In addition to the €1.2 billion in EU funding, the three countries 

have allocated over €700 million from national resources to support renewable hydrogen 

projects on their territory. The total funds mobilised through the renewable hydrogen auction 

reached around two billion euros (Falcone, Hiete & Sapio, 2021). 

 

1.1.4 Technological and infrastructure constraints 

Another major challenge is the need to develop and optimise technologies for the 

production, storage, transport and use of hydrogen. Electrolysers, the essential equipment to 

produce green hydrogen, are still relatively expensive and their production on an industrial 

scale is limited. The infrastructure for the distribution of hydrogen is also problematic 

(Squadrito, Maggio & Nicita, 2023). Although some European countries, such as the 

Netherlands, Germany and Portugal, have the potential to use existing natural gas infrastructure 

to transport hydrogen, this requires significant investment and technical adaptations. These 

countries are well placed to expand the use of hydrogen thanks to their natural gas infrastructure 

that can be adapted to transport hydrogen (Trattner, Klell & Radner, 2022; Azadnia et al., 

2023). The economic viability of hydrogen projects remains one of the biggest obstacles to 

their wider deployment. The production of green hydrogen is currently more expensive 

compared to conventional methods of producing hydrogen from natural gas or the direct use 

of fossil fuels in industry (Capurso et al., 2022). Hydrogen currently accounts for less than 1 

percent of European energy consumption and is mainly used as a feedstock in the chemical 

industry (Ismayilova & Hajiyeva, 2024). This situation highlights a significant gap between 

current reality and strategic objectives, underlining the need to accelerate the development of 

the sector and increase investment in relevant technologies and infrastructure (Seck et al., 2022; 

Genovese et al., 2023). 



HYDROGEN'S ROLE IN GREEN ECONOMY: OPPORTUNITIES AND CHALLENGES IN 

SELECTED EUROPEAN COUNTRIES 

40 

 

While there is a growing number of studies addressing the potential of hydrogen as part 

of a green transition (e.g. in industry, transport or energy), most research focuses on the 

technical, technological or environmental aspects of hydrogen use. However, only a limited 

number of works analyse regional differences in the development of hydrogen infrastructure 

in relation to the economic performance of countries. In particular, there is a lack of 

comparative analysis linking economic indicators such as GDP per capita with practical 

indicators of progress in hydrogen mobility and production. This study therefore seeks to fill 

this gap by examining whether and how a country’s economic strength influences its ability to 

develop a hydrogen economy. Based on the identified research gap, we formulated the 

following research question: “What is the relationship between the economic maturity of 

countries (measured by GDP per capita) and the rate of development of hydrogen 

infrastructure, including the number of hydrogen vehicles and production capacities in EU-27 

countries?”. 

 

2 DATA AND METHODOLOGY 

This study examines the relationship between hydrogen infrastructure capacities and 

economic development in EU-27 countries. The dataset used includes national indicators 

obtained from publicly available sources such as Eurostat, the European Hydrogen Observatory 

and national statistical offices. 

Three main variables were selected for the analysis: 

 Hydrogen production capacity (MW/MWel), 

 Hydrogen consumption capacity (in tonnes/year), 

 GDP per capita (in euros). 

Countries were divided into two groups – high and low levels of hydrogen infrastructure 

development – based on aggregated indicators of hydrogen production and consumption in 

2025. 

Due to the small sample size and the lack of examination of normal distribution, non-

parametric tests were used to verify statistical differences between these groups: 

 The Kruskal-Wallis test was used to assess differences between groups, 

 The effect size (ε²) was calculated to estimate the significance of the differences, 

 Subsequently, Dwass-Steel-Critchlow-Fligner pairwise comparisons were applied to 

identify specific differences between groups. 

The chosen methodological approach allowed comparing the readiness for the 

implementation of hydrogen solutions in different economic contexts, while taking into 

account the limitations of the available data and their distribution. 

Based on the research question, we formulated the following hypotheses: 

H1: There is a statistically significantly higher hydrogen production and consumption 

capacity among countries with higher GDP per capita compared to countries with lower GDP 

per capita. 

H2: Countries with higher GDP per capita have a higher number of registered 

hydrogen cars compared to countries with lower GDP per capita. 



Maria BARTEKOVA, Sabina JANIKOVICOVA 

41 

 

3 RESULTS AND DISCUSSION 

Figure 1 shows the differences in hydrogen production capacities between EU-27 

countries. The results show higher production capacity in economically stronger countries, 

which corresponds to their investment potential and technological maturity (Germany, France, 

Denmark, Finland). 

 

Figure 1. Production capacity in the European union (2025) 

 
Source: European Hydrogen Observatory (2025) 

 

Figure 2 illustrates the current number of registered hydrogen-powered passenger 

vehicles in individual European Union member states. Countries such as Germany and France 

have the highest number of registrations, indicating their more active approach to supporting 

alternative transport fuels and developing hydrogen infrastructure. 

 

Figure 2. Number of registered hydrogen cars in the European union 

 
Source: European Hydrogen Observatory (2025) 



HYDROGEN'S ROLE IN GREEN ECONOMY: OPPORTUNITIES AND CHALLENGES IN 

SELECTED EUROPEAN COUNTRIES 

42 

 

Figure 3 shows the market share of different car brands offering hydrogen-powered vehicles 

in individual European Union member states. The dominance of brands such as Toyota and Hyundai 

highlights the technological leadership of Asian manufacturers in the field of hydrogen propulsion 

and their penetration into the European market. 

 

Figure 3. Brand share of registered hydrogen cars in the European union 

 
Source: European Hydrogen Observatory (2025) 

 

The results of the analysis show that there are statistically significant differences in the three 

variables under study between groups of countries with high and low levels of hydrogen infrastructure 

development: hydrogen production capacity, hydrogen consumption capacity and GDP per capita. 

 

Table 1: One-way ANOVA results 

 

  χ² df p ε² 

Production_capacity  6.1372  1  0.0132  0.3230  

Consumption_capacity  5.7130  1  0.0168  0.3007  

GDP_per_capita  10.5657  1  0.0012  0.5561  

  

Dwass-Steel-Critchlow-Fligner pairwise comparisons 

Pairwise comparisons - Production_capacity 

    W p 

High  Low  -3.5035  0.0133  

  

Pairwise comparisons - Consumption_capacity 

    W p 

High  Low  

-3.3802 

 

 

 0.0169  

  

BMW Honda

Huyndai

MercedesOpel

Toyota



Maria BARTEKOVA, Sabina JANIKOVICOVA 

43 

 

Pairwise comparisons - GDP_per_capita 

    W p 

High  Low  -4.5969  0.0012  

These results confirm that countries with higher GDP per capita also have significantly more 

developed hydrogen infrastructure – both higher production and consumption capacity. This trend is 

consistent with findings from previous studies that suggest that economically stronger countries are 

better positioned to invest in new technologies, including hydrogen (Capurso et al., 2022). 

These differences suggest that the development of a hydrogen economy is closely linked to a 

country's economic performance. Rich countries such as Germany, Austria, and Denmark invest in 

the so-called “hydrogen valleys” – integrated regional ecosystems where hydrogen is produced, 

distributed and consumed locally (Lagioia et al., 2023). 

On the contrary, in countries with lower GDP and weaker infrastructure, the development of 

these technologies faces a number of obstacles. The main ones include regulatory barriers, complex 

permitting processes and limited access to energy networks (Zainal et al., 2024). 

An important finding is also the fact that high GDP does not automatically guarantee 

increasing hydrogen consumption – for example, Germany shows a decreasing trend in the volume 

of biofuel consumption, which may be related to the diversification of renewable sources and the 

streamlining of production processes (van der Spek et al., 2022). 

The obtained results confirm that the development of hydrogen infrastructure is significantly 

influenced by the economic strength of the country. To achieve the EU's green economy goals, it will 

therefore be crucial to create support tools for less developed countries so that they can effectively 

participate in Europe's energy transformation (Falcone et al., 2021). 

The results of the analysis clearly support both hypotheses and indicate that the economic 

maturity of countries is a significant determinant of the development of hydrogen infrastructure. 

Countries with higher GDP per capita achieve higher hydrogen production and consumption capacity, 

as well as a larger number of registered hydrogen vehicles. This trend is consistent with the findings 

of previous studies (Capurso et al., 2022; Lagioia et al., 2023) and points to the need for specific 

support instruments for less developed EU Member States. At the same time, it was identified that 

economic maturity alone may not be a sufficient prerequisite for the intensive use of hydrogen, as 

consumption can also be influenced by the diversification of the energy mix and the structure of 

industry in the countries concerned. 

Table 1 clearly confirm the statistical significance of the differences between groups of 

countries. A p value of < 0.05 for all three variables (production capacity, consumption and GDP per 

capita) together with an effect size of ε² above 0.3 indicates a moderate to strong effect. These results 

are consistent with the assumption that economically stronger countries have a higher level of 

technological readiness as well as better access to investment resources. 

 

4 CONCLUSIONS 

This paper highlights significant differences in the development of hydrogen infrastructure 

between European countries and confirms that economically stronger countries (with higher GDP per 

capita) achieve higher hydrogen production and consumption capacity. The strength of the research 



HYDROGEN'S ROLE IN GREEN ECONOMY: OPPORTUNITIES AND CHALLENGES IN 

SELECTED EUROPEAN COUNTRIES 

44 

 

is the use of non-parametric statistical methods, which are also suitable for smaller samples and non-

ideal data distribution, which allows for robust comparisons between groups of countries. 

On the other hand, the study is limited by the relatively small number of countries analysed 

and the focus on selected quantitative indicators only. Therefore, the results cannot be generalized 

without reservations to the entire EU. In addition to economic maturity, other factors can also 

influence the development of hydrogen infrastructure – for example, the availability of natural 

resources, energy policy, public perception of hydrogen technologies or the level of technological 

readiness (compare with van der Spek et al., 2022; Capurso et al., 2022). 

The practical implications of the research are clear – if the hydrogen economy is to be a tool 

for a fair and environmentally sustainable transformation of Europe, it is essential to specifically 

support the development of infrastructure, including in economically weaker countries. Policies 

should focus on: widening access to investment through European funds; simplifying permitting 

processes; supporting research and development of local solutions (Zainal et al., 2024); strengthening 

education and raising awareness about hydrogen in society. 

In the future, research should follow longer-term developments and expand the spectrum of 

variables, including environmental benefits and socio-economic effects of the introduction of 

hydrogen technologies. It is also important to analyse in more depth successful examples, such as the 

so-called “hydrogen valleys” in Germany and Denmark, which could serve as a model for other 

countries (Lagioia et al., 2023). 

The paper summarizes the knowledge on the development of hydrogen infrastructure in EU 

Member States and confirms the importance of economic maturity as a key factor in this development. 

The results point to the need for a differentiated approach to the creation of public policies that would 

take into account regional specificities and support the implementation of hydrogen solutions also in 

less developed areas. Specifically, countries with a GDP per capita above EUR 35,000 showed on 

average twice the hydrogen production capacity compared to countries whose GDP did not exceed 

EUR 20,000. In the future, it is appropriate to expand the research to include qualitative aspects, as 

well as environmental and socio-economic consequences of the introduction of hydrogen 

technologies. 

In conclusion, it can be stated that the support of the hydrogen economy must be systemic, 

inclusive and strategically coordinated at the EU and individual national levels in order to fulfill its 

transformative potential in the context of a green economy. 

The practical implications of the study lie in identifying specific economic obstacles that limit 

the development of hydrogen infrastructure in less developed countries. The results provide an 

argumentative basis for creating targeted financial and technical support from the EU, for example 

through cohesion policy, the European Hydrogen Bank or programs focused on regional innovation. 

At the same time, the contribution points to the need to simplify permitting processes and strengthen 

interstate cooperation in building hydrogen ecosystems. Taking these factors into account can 

contribute to a more balanced and effective implementation of the goals of the European Green Deal. 

Acknowledgment 

This research paper is a partial result of the multiyear research projects VEGA 1/0465/23 “Generic, convergence and 

model-based approaches of environmental production and logistics in business development on Slovakia”, project KEGA 

No. 002EU-4/2025 „Electromobility: A Systemic Approach to Transport Transformation – Creating University Textbook 

with Emphasis on Developing and Enhancing the Knowledge, Skills, Competencies and Critical Thinking of Students in 

the Study Field of Economics and Management“ and  the project of University of Economics no. I-25-105-00. 



Maria BARTEKOVA, Sabina JANIKOVICOVA 

45 

 

REFERENCES 

1. Abbasov, A. (2024). SCIENTIFIC-THEORETICAL ISSUES IN THE FORMATION OF A GREEN 

ECONOMY. Agora International Journal of Economical Sciences, 18(2), 1-10. 

2. Azadnia, A. H., McDaid, C., Andwari, A. M., & Hosseini, S. E. (2023). Green hydrogen supply chain 

risk analysis: A european hard-to-abate sectors perspective. Renewable and Sustainable Energy 

Reviews, 182, 113371. 

3. Capurso, T., Stefanizzi, M., Torresi, M., & Camporeale, S. M. (2022). Perspective of the role of 

hydrogen in the 21st century energy transition. Energy Conversion and Management, 251, 114898. 

4. European Hydrogen Observatory (2025). Datasets. https://observatory.clean-

hydrogen.europa.eu/tools-reports/datasets 

5. Eurostat. (2025). Real GDP per capita. 

https://ec.europa.eu/eurostat/databrowser/view/sdg_08_10/default/table?lang=en 

6. Falcone, P. M., Hiete, M., & Sapio, A. (2021). Hydrogen economy and sustainable development goals: 

Review and policy insights. Current opinion in green and sustainable chemistry, 31, 100506. 

7. Genovese, M., Schlüter, A., Scionti, E., Piraino, F., Corigliano, O., & Fragiacomo, P. (2023). Power-

to-hydrogen and hydrogen-to-X energy systems for the industry of the future in Europe. International 

Journal of Hydrogen Energy, 48(44), 16545-16568. 

8. Hashimova, A. (2023). Personnel work process using digital economy application programs. Agora 

International Journal of Economical Sciences, 17(2), 78-86. 

9. Ismayilova, H., & Hajiyeva, S. (2024). AGRO-ECONOMIC SYNERGY: ENHANCING FOOD 

SECURITY THROUGH INNOVATIVE AGRICULTURAL PRACTICES IN AZERBAIJAN. Agora 

International Journal of Economical Sciences, 18(2), 134-147. 

10. Kakoulaki, G., Kougias, I., Taylor, N., Dolci, F., Moya, J., & Jäger-Waldau, A. (2021). Green 

hydrogen in Europe–A regional assessment: Substituting existing production with electrolysis 

powered by renewables. Energy conversion and management, 228, 113649. 

11. Kovač, A., Paranos, M., & Marciuš, D. (2021). Hydrogen in energy transition: A review. International 

Journal of Hydrogen Energy, 46(16), 10016-10035. 

12. Kumar, S. S., & Lim, H. (2022). An overview of water electrolysis technologies for green hydrogen 

production. Energy reports, 8, 13793-13813. 

13. Lagioia, G., Spinelli, M. P., & Amicarelli, V. (2023). Blue and green hydrogen energy to meet 

European Union decarbonisation objectives. An overview of perspectives and the current state of 

affairs. International Journal of Hydrogen Energy, 48(4), 1304-1322. 

14. Mneimneh, F., Ghazzawi, H., Abu Hejjeh, M., Manganelli, M., & Ramakrishna, S. (2023). Roadmap 

to achieving sustainable development via green hydrogen. Energies, 16(3), 1368. 

15. Sadik-Zada, E. R. (2021). Political economy of green hydrogen rollout: A global perspective. 

Sustainability, 13(23), 13464. 

16. Seck, G. S., Hache, E., Sabathier, J., Guedes, F., Reigstad, G. A., Straus, J., ... & Cabot, C. (2022). 

Hydrogen and the decarbonization of the energy system in europe in 2050: A detailed model-based 

analysis. Renewable and Sustainable Energy Reviews, 167, 112779. 

17. Squadrito, G., Maggio, G., & Nicita, A. (2023). The green hydrogen revolution. Renewable Energy, 

216, 119041. 

18. Trattner, A., Klell, M., & Radner, F. (2022). Sustainable hydrogen society–vision, findings and 

development of a hydrogen economy using the example of Austria. International Journal of Hydrogen 

Energy, 47(4), 2059-2079. 

19. van der Spek, M., Banet, C., Bauer, C., Gabrielli, P., Goldthorpe, W., Mazzotti, M., ... & Gazzani, M. 

(2022). Perspective on the hydrogen economy as a pathway to reach net-zero CO 2 emissions in 

Europe. Energy & Environmental Science, 15(3), 1034-1077. 

20. Vivanco-Martín, B., & Iranzo, A. (2023). Analysis of the European Strategy for Hydrogen: A 

Comprehensive Review. Energies, 16(9), 3866. 

21. Zainal, B. S., Ker, P. J., Mohamed, H., Ong, H. C., Fattah, I. M. R., Rahman, S. A., & Mahlia, T. I. 

(2024). Recent advancement and assessment of green hydrogen production technologies. Renewable 

and Sustainable Energy Reviews, 189, 113941. 


