Abstract

Purpose: This research evaluates how Yeosu–Gwangyang Port (YGPA) integrates smart automation with energy self-sufficiency to establish a scalable sustainability model for maritime hubs, advancing a unified paradigm that aligns technological modernization with environmental imperatives Research design, data, and methodology: Using a diagnostic case study approach, the paper examines the port’s infrastructure transition based on multi-source data, including internal performance metrics, national policy directives, and real-time operational datasets on renewable energy generation and terminal throughput. Results: The findings show that the convergence of terminal automation and localized renewable energy production yields a synergistic effect. Systematic carbon monitoring combined with on-site energy generation reduces the port’s environmental footprint and buffers it against energy price volatility. Digitalized energy-management systems further enhance operational resilience while supporting long-term decarbonization pathways. Conclusions: Sustainable port management requires a “techno-ecological” framework that bridges climate action and high-tech infrastructure. By integrating automation, renewable energy deployment, and structured carbon management, the Yeosu model provides actionable insights for ports seeking to strengthen energy resilience, environmental performance, and competitive positioning. Overall, long-term maritime competitiveness necessitates the holistic integration of smart logistics and sustainable energy systems.