<p>Renewable energy (RE) projects are vital to achieving sustainable development in the context of the pressing challenges of climate change and the energy transition. However, despite the global consensus on their importance, RE projects often encounter significant resistance at the local level. This article investigates how territorial characteristics influence the social acceptability of RE projects and explores the concept of fertile ground as a framework for understanding the conditions that foster or hinder local support for such projects. Drawing on theories of regional path dependency and leadership agency, we identify the historical, socioeconomic, cultural and governance factors shaping local attitudes towards RE projects. By employing qualitative methods, including semi-structured interviews with diverse stakeholders and the analysis of press articles, we develop a nuanced approach that incorporates key territorial dynamics. Our findings reveal the critical role of historical industrial conflicts, political leadership, place attachment and perceptions of fairness in shaping local acceptability. They also highlight the influence of habituation and saturation effects, which shows that the acceptability of RE projects is not static; rather, it evolves over time in response to local conditions and stakeholder engagement. By situating the fertile ground concept within broader frameworks of social acceptability, this study provides actionable insights to policymakers and project developers seeking to align RE initiatives with local contexts and values.</p>