Policy & Socio-Economics
Public Readiness for Hydrogen Infrastructure in Community Settings: Comparative Evidence on Attitudinal Dynamics
Oct 2025
Publication
This study presents a cross-national investigation into the drivers and psychological mechanisms shaping public perceptions and acceptance of hydrogen refuelling infrastructure located in residential proximity. Parallel survey data from Japan Spain and Norway were analysed using a multigroup comparative framework. Measurement invariance was established across the three datasets subject to minor modifications within the constructs of trust in hydrogen innovation safe housing concern and perceived usefulness. The conceptual models yielded generalisable findings across countries: negative emotions exerted a stronger influence on individuals' risk perceptions than positive emotions whereas perceived usefulness had a greater impact on acceptance than perceived risk. Safe housing and environmental concerns exhibited moderating effects that amplified the influence of affective responses towards hydrogen refuelling facilities with varying magnitudes across datasets. Furthermore the incorporation of Hofstede's cultural dimensions provided insights into cross-country differences revealing that individualism uncertainty avoidance and long-term orientation explain the psychological pathways through which affective states are translated into subjective evaluations of hydrogen facilities ultimately shaping community acceptance.
A Systematic Analysis of Life Cycle Assessments in Hydrogen Energy Systems
Nov 2025
Publication
Hydrogen plays a central role in ensuring the fulfillment of the climate and energy goals established in the Paris Agreement. To implement sustainable and resilient hydrogen economies it is essential to analyze the entire hydrogen value chain following a Life Cycle Assessment (LCA) methodology. To determine the current methodologies approaches and research tendencies adopted when performing LCA of hydrogen energy systems a systematic literature analysis is carried out in the present study. The choices regarding the “goal and scope definition” “life cycle inventory analysis” and “life cycle impact assessment” in 70 scientific papers were assessed. Based on the collected information it was concluded that there are no similar LCA studies since specificities introduced in the system boundaries functional unit production storage transportation end-use technologies geographical specifications and LCA methodological approaches among others introduce differences among studies. This lack of harmonization triggers the need to define harmonization protocols that allow for a fair comparison between studies; otherwise the decision-making process in the hydrogen energy sector may be influenced by methodological choices. Although initial efforts have been made their adoption remains limited and greater promotion is needed to encourage wider implementation.
Mapping Green Hydrogen Research in North Africa: A Bibliometric Approach for Strategic Foresight
Oct 2025
Publication
This bibliometric analysis aims to map the evolution disciplinary structure and collaboration dynamics of green hydrogen (GH) research in North Africa from 2019 to 2025. Drawing on a corpus of ~39000 global publications indexed in Scopus and analysed through SciVal we isolate and examine the contributions of Egypt Morocco Algeria Tunisia and Libya. Egypt leads the region with 842 publications and a field-weighted citation impact of 2.42 followed by Morocco (232 Pubs. FWCI 2.30) and Algeria (184 Pubs. FWCI 1.65). Notably Tunisia exhibits the highest growth factor (41 times since 2019) while Libya remains marginal with only 18 publications in the GH field. The region is well represented in Energy and Environmental fields but is underrepresented in trendy areas such as Materials and Chemical Engineering highlighting critical gaps in consistency sophistication and technical infrastructure. While international collaboration exceeds 69% for most countries it rarely translates into a high impact compared to the global average. Conversely the limited industrial collaboration shows the highest citation impact (e.g. Tunisia: 68 citations/publications). A thematic analysis reveals shared strengths in electrolytic hydrogen production and renewable energy integration with Egypt showing diversification into microalgae and nanocomposites and Morocco excelling in techno-economic assessments and ammonia-based systems. By revealing patterns in research quality collaboration and thematic positioning this study offers evidence-based insights to inform national science strategies enhance regional cooperation and position North Africa more strategically in the emerging global green hydrogen economy.
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