This white paper outlines strategies for managing energy at ports, addressing the challenges posed by increasing power demands and the need for environmental sustainability. It discusses the critical role of ports in global trade and their significant contribution to greenhouse gas emissions, particularly from vessel operations. The document presents various solutions for ports to transition towards cleaner energy configurations, including shore-to-ship power systems that allow vessels to connect to onshore power supplies, thereby reducing emissions and noise. It details the components of an effective shore power system, including power conversion, cable management, and control systems, emphasizing the importance of safety and reliability. The paper also highlights the need for ports to adapt their energy strategies based on specific operational requirements and the diverse types of vessels they accommodate. Furthermore, it discusses the long-term investment considerations and lifecycle management of energy systems to ensure efficiency and sustainability in port operations.