<p>This research investigates the intricate dynamics of waste-to-energy technology adoption within European Union countries, providing critical insights for sustainable waste management. Using a robust methodology, including comprehensive data analysis and the cross-sectional autoregressive distributed lag model, we examine both short-term and long-term factors influencing WtE adoption. Our findings reveal a pronounced short-term uptake of waste-to-energy technologies in regions with established incineration infrastructure, echoing successes in countries such as Sweden. However, a detailed long-term analysis reveals challenges, underscoring the need for public engagement and ongoing technological innovation, which aligns with circular economy principles. The role of advanced environmental technology emphasizes the importance of sustained development for effective waste management practices. Additionally, a stable primary energy supply is critical in facilitating waste-to-energy adoption, as demonstrated by Sweden. By integrating demand-based CO₂ emissions into waste-to-energy policies, our research aligns with global commitments to reduce carbon emissions. We advocate for a holistic approach that considers historical infrastructure, technological advancements, energy supply, and environmental concerns, seamlessly integrating circular economy principles into the waste-to-energy framework. Ultimately, this research provides a comprehensive understanding of waste-to-energy adoption dynamics, emphasizing the urgent need for transformative practices and urging policymakers and stakeholders to develop resilient and eco-friendly WtE strategies across the European Union.</p>