Policy & Socio-Economics
Challenges and Potentials for Additive Manufacturing of Hydrogen Energy Components: A Review
Mar 2025
Publication
Climate change necessitates the development of sustainable energy systems with hydrogen technologies playing a key role in this transition. Additive manufacturing (AM) offers a significant potential to enhance the efficiency of hydrogen energy components and reduce their costs through rapid prototyping design freedom and functional integration. This review provides the first comprehensive summary of the current state of research on the applicati Read More
The Transition to an Eco-Friendly City as a First Step Toward Climate Neutrality with Green Hydrogen
Mar 2025
Publication
A city of the future will need to be eco-friendly while meeting general social and economic requirements. Hydrogen-based technologies provide solutions for initially limiting CO2 emissions with prospects indicating complete decarbonization in the future. Cities will need to adopt and integrate these technologies to avoid a gap between the development of hydrogen production and its urban application. Achievable results are analyzed by injecting hydrogen int Read More
Current Challenges to Achieving Mass-Market Hydrogen Mobility from the Perspective of Early Adopters in South Korea
Mar 2025
Publication
Hydrogen mobility is expected to be a crucial element in decarbonizing fossil fuel-based transportation. In South Korea hydrogen mobility has successfully formed an early market led by fuel cell passenger cars under strong support policies. Nevertheless the fuel cell vehicle (FCV) market is still in its infancy and current challenges must be overcome to achieve mass-market adoption. This study aims to identify the current challenges in the diffusion of FCVs Read More
The Role of Hydrogen in Integrated Assessment Models: A Review of Recent Developments
Mar 2025
Publication
Hydrogen is emerging as a crucial energy source in the global effort to reduce dependence on fossil fuels and meet climate goals. Integrating hydrogen into Integrated Assessment Models (IAMs) is essential for understanding its potential and guiding policy decisions. These models simulate various energy scenarios assess hydrogen’s impact on emissions and evaluate its economic viability. However uncertainties surrounding hydrogen technologies must be eff Read More
The Global Yet Local Nature of Energy Imaginaries: The Cases of Dutch and Spanish Hydrogen Valleys
Mar 2025
Publication
Hydrogen valleys are envisaged (imagined) integrated industrial systems where hydrogen is produced stored and utilized. Here we show how hydrogen valleys as sociotechnical imaginaries are differentiated in terms of their specific configurations but homogenous in terms of reflecting the interests of large industrial fossil fuel suppliers and consumers. This path dependence is anticipated in sociotechnical transitions theory which emphasises the power Read More
Stakeholder and Techno-Economic Assessment of Iceland’s Green Hydrogen Economy
Mar 2025
Publication
Green hydrogen is a promising energy carrier for the decarbonization of hard-toabate sectors and supporting renewable energy integration aligning with carbon neutrality goals like the European Green Deal. Iceland’s abundant renewable energy and decarbonized electricity system position it as a strong candidate for green hydrogen production. Despite early initiatives its hydrogen economy has yet to significantly expand. This study evaluated Icela Read More
The Green Hydrogen Ambition and Implementation Gap
Jan 2025
Publication
Green hydrogen is critical for decarbonizing hard-to-electrify sectors but it faces high costs and investment risks. Here we defne and quantify the green hydrogen ambition and implementation gap showing that meeting hydrogen expectations will remain challenging despite surging announcements of projects and subsidies. Tracking 190 projects over 3 years we identify a wide 2023 implementation gap with only 7% of global capacity announcements fnis Read More
Thermodynamic Integration in Combined Fuel and Power Plants Producing Low Carbon Hydrogen and Power with CCUS
Dec 2024
Publication
Demand for low-carbon sources of hydrogen and power is expected to rise dramatically in the coming years. Individually steam methane reformers (SMRs) and combined cycle gas power plants (CCGTs) when combined with carbon capture utilisation and storage (CCUS) can produce large quantities of ondemand decarbonised hydrogen and power respectively. The ongoing trend towards the development of CCUS clusters means that both processes may op Read More
Strategic Hydrogen Management: Driving a Sustainable Energy Future
Mar 2025
Publication
The concept of sustainability and green energy has become increasingly relevant in our lives especially in the face of climate change and the growing demand for sustainable solutions in the energy sector. Driven by renewable energies there is a continuous effort to research and develop alternative energy sources and fuels. In this context the European Union (EU) Strategy for Hydrogen (H) has emerged placing this source as one of the central pillars Read More
Anion-exchange Membrane Water Electrolyzers
Apr 2022
Publication
This Review provides an overview of the emerging concepts of catalystsmembranes and membrane electrode assemblies (MEAs) for water electrolyzers with anion-exchange membranes (AEMs) also known as zero-gap alkaline water electrolyzers. Much ofthe recent progress is due to improvements in materials chemistry MEA designs andoptimized operation conditions. Research on anion-exchange polymers (AEPs) has focusedon the cationic head/backbo Read More
Direct-Coupled Improvement of a Solar-Powered Proton Exchange Membrane Electrolyzer by a Reconfigurable Source
Sep 2024
Publication
This paper deals with proton exchange membrane (PEM) electrolyzers directly coupled with a photovoltaic source. It proposes a method to increase the energy delivered to the electrolyzer by reconfiguring the electrical connection of the arrays according to solar radiation. Unlike the design criterion proposed by the literature the suggested approach considers a source obtained by connecting arrays in parallel depending on solar radiation based on a fix Read More
The German Scramble for Green Hydrogen in Namibia: Colonial Legacies Revisited?
Feb 2025
Publication
Namibia is positioning itself as a green hydrogen superpower to supply the German market with the muchneeded energy carrier. While the hydrogen hype is marketed as a pathway facilitating the German and Euro pean green transition that is mutually beneficial for African interests social movements and affected commu nities have been denouncing green colonialist tendencies of the hydrogen rush. This paper is centring these claims. Applying a heuristic of Read More
Mapping China's Hydrogen Energy City Clusters: Old and New Synergistic Effects
Feb 2025
Publication
Hydrogen is a pivotal driver of the green economy and clean energy transition and global efforts are underway to scale up hydrogen technology and its adoption. This study explores China’s hydrogen fuel cell vehicle (HFCV) city clusters policy launched in 2021 involving five clusters consisting of 44 cities to boost the country’s hydrogen economy. Drawing on cluster theory collaborative network literature and evolutionary economic geography we inves Read More
Participatory Mapping of Local Green Hydrogen Cost-potentials in Sub-Saharan Africa
Mar 2025
Publication
C. Winkler,
Heidi Heinrichs,
S. Ishmam,
B. Bayat,
Amin Lahnaoui,
Solomon Nwabueze Agbo,
E.U. Pena Sanchez,
David Franzmann,
N. Oijeabou,
C. Koerner,
Y. Michael,
B. Oloruntoba,
C. Montzka,
H. Vereecken,
H. Hendricks Franssen,
J. Brendt,
S. Brauner,
Wilhelm Kuckshinrichs,
S. Venghaus,
Daouda Kone,
Bruno Korgo,
Kehinde Olufunso Ogunjobi,
Jane Olwoch,
V. Chiteculo,
Z. Getenga,
Jochen Linßen and
Detlef Stolten
Green hydrogen is a promising solution within carbon free energy systems with Sub-Saharan Africa being a possibly well-suited candidate for its production. However green hydrogen production in Sub-Saharan Africa is not yet investigated in detail. This work determines the cost-potential for green hydrogen production within this region. Therefore a potential analysis for PV wind and hydropower groundwater analysis and energy systems optimization a Read More
Governance of Future-making: Green Hydrogen in Namibia and South Africa
Feb 2025
Publication
The green-hydrogen sector has created considerable expectations in the Global South about export-oriented development and industrial path creation. However whether and how these expectations are really materializing requires further scrutiny. This article develops a conceptual approach that we call governance of futuremaking. Thereby we want to understand how actors try to coordinate their expectations about future economic development Read More
Challenges and Opportunities in Green Hydrogen Supply Chain through Metaheuristic Optimisation
May 2023
Publication
A comprehensive analysis of the green hydrogen supply chain is presented in this paper encompassing production storage transportation and consumption with a focus on the application of metaheuristic optimization. The challenges associated with each stage are highlighted and the potential of metaheuristic optimization methods to address these challenges is discussed. The primary method of green hydrogen production water electrolysis through ren Read More
Investment Needs of European Energy Infrastructure to Enable a Decarbonised Economy
Jan 2025
Publication
The aim of this project is to identify the investment requirements for energy infrastructure across each TEN-E infrastructure category as well as for non-TEN-E electricity transmission and distribution infrastructure in order to enable a decarbonised economy in the EU. It also evaluates the need for EU financial support and explores possible forms of EU funding to address the identified needs within the scope of this study's assessment.
Delivering the EU Green Deal: Progress Towards Targets 2025
Jan 2025
Publication
This report provides a comprehensive assessment of progress towards the European Green Deal (EGD) the European Union’s transformative agenda for achieving climate neutrality by 2050. The analysis encompasses 154 quantifiable targets from 44 policy documents between 2019 and 2024 across key sectors such as climate energy circular economy transport agriculture and food ecosystems and biodiversity water soil and air pollution. The study Read More
Sustainable Supply Chain and Industrialisation of Hydrogen Technologies, Summary Report 2024
Jan 2024
Publication
This report delves into the European renewable hydrogen supply chain to offer recommendations for Europe to become a leader in the hydrogen economy.
Overall Strategic Analysis of Clean Energy Technology in the European Union
Jan 2025
Publication
This report by the Clean Energy Technology Observatory (CETO) provides an updated strategic analysis of the EU clean energy technology sector. The EU's renewable share in gross final energy consumption rose to 24.5% in 2023 and to 44.7% of gross electricity consumption. The electrification rate however has remained almost unchanged at 26% over the decade to 2023 indicating slow progress on decarbonisation of transport and heating sectors. The E Read More
No more items...