Analysing the Impact of Human Capital on Renewable Energy Penetration: A Bibliometric Reviews

Systematic evaluation and review of Germany renewable energy research: A bibliometric study from 2008 to 2023

Research purpose

This study aims to outline the fundamental status of the German academic community's research in the field of renewable energy and to foster collaboration between China and Germany in this area.

Research methods

This study examines documents published by German scholars from 2008 to 2023, which are part of the "Web of Science (WOS) Core Collection" database and related to renewable energy issues, using the bibliometric visualization tool CiteSpace 6.2.R6.

Research conclusions

The study examines the co-occurrence and burst of keywords, changes in publication volume, international collaboration networks, research institution collaboration networks, and researcher collaboration networks. It concluded that: (1) German academic research in the field of renewable energy can be divided into three phases: nascent (2008-2014), surge (2015-2021), and decline (2022-2023). (2) The Helmholtz Association and Reinhard Madlener, among other prominent institutions and academicians, are responsible for the close cooperation among personnel and institutions, the significant leading effect, and the emphasis on cutting-edge topics. Research in this field notably focuses on cutting-edge issues like life cycle assessment and developing countries. The study observes a transition in research concentration from macro to micro perspectives. In the context of a global collective response to climate change, the analysis of the German academic community's overall situation will enhance the collaboration between the two countries in the field of renewable energy research.

Factors determining renewable energy demand behavior: service sector development, private sector involvement, and human resource management perspective

Energy is considered the engine of growth due to its indispensable role in fueling economic activities. However, energy is one of the primary contributors to environmental degradation. In addition, conventional energy sources are depleting quickly due to the over-consumption of these sources, raising the issue of energy security. The solution to these above-stated issues is increasing renewable energy consumption. There is evidence that service sector development, private sector development, and human resource management help improve energy efficiency; however, their role in increasing renewable energy demand is debatable. This analysis fills the vacuum by examining the effect of service sector development, private sector development, and human resource management on renewable energy demand across four major regions: Asia, America, Africa, and Europe, spanning from 1998 to 2021. The analysis depends on the CS-ARDL model that can estimate the short and long-run results by addressing the model's cross-sectional dependence. The model estimates confirm that service sector development, private sector, and financial development escalate the long-run renewable energy consumption in all regions except Africa. Human resource enhances renewable energy consumption globally, in Europe and America. Likewise, GDP and carbon emissions stimulate long-run renewable energy consumption in all regions; however, trade only encourages renewable energy consumption globally and in Europe. The service sector development, financial development, carbon emissions, and trade significantly encourage short-run renewable energy consumption in one or two regions. In contrast, the GDP positively and significantly connects to the short-run renewable energy consumption in almost all regions. Therefore, policymakers should focus on increasing the role of human resources, services, and private sector development in the economy.