Energy Infrastructure and Transition Readiness

Energy infrastructure and transition readiness focus on developing the electrical systems and supporting infrastructure required to enable large-scale electrification and deployment of low-emission technologies in port environments. As ports transition toward electrified equipment, electric and/or hybrid work vessels, shore power, and alternative fuel systems, the availability, reliability, and capacity of energy infrastructure become critical constraints. Without adequate grid capacity, energy management systems, and integration of renewable energy, many decarbonization measures cannot be implemented at scale.

This practice includes:

• grid capacity assessments
• electrical upgrades
• renewable energy integration
• energy storage systems
• load management strategies.

Ports must evaluate existing electrical infrastructure, forecast future energy demand, and plan for phased upgrades to support increasing loads from electrified operations and vessels. Integration of renewable energy sources, such as solar and wind, along with battery energy storage systems, can improve resilience, reduce emissions, and help manage peak demand.

Energy infrastructure and transition readiness directly support the deployment of multiple decarbonization practices, including shore power, operational electrification, and future fuels. It also contributes to broader energy transition goals by enabling ports to act as energy hubs within regional systems. As electrification accelerates, coordinated planning and investment in energy infrastructure are essential to ensure reliable, efficient, and scalable implementation of low-emission technologies.

Energy infrastructure and transition readiness encompass the planning, development, and integration of electrical systems required to support the decarbonization of port operations and maritime activities. As ports adopt electrified cargo handling equipment, shore power systems, and energy-intensive fuel production or bunkering infrastructure, electricity demand can increase significantly, often exceeding the capacity of existing grid connections. This creates a need for comprehensive planning to assess current infrastructure, forecast future demand, and identify required upgrades to substations, distribution networks, and utility interconnections. Without this foundational infrastructure, many low-emission technologies cannot be deployed effectively or reliably.

As a core enabling practice, energy infrastructure development supports the implementation of multiple decarbonization pathways. Shore power systems require high-capacity, reliable electrical supply at the berth, while electrified cargo handling equipment and vehicle fleets depend on distributed power systems and charging infrastructure. In addition, emerging fuel pathways such as hydrogen production or electrified fuel synthesis may significantly increase energy demand within port environments. This practice also addresses secondary thematic areas, including renewable energy integration and system resilience, by supporting the deployment of solar, wind, and microgrid systems that can reduce reliance on external grids and improve operational continuity.

Globally, ports are increasingly investing in energy infrastructure to support electrification and decarbonization. The Port of Long Beach has demonstrated zero-emission terminal equipment, including battery-electric yard tractors and grid-connected electric rubber-tired gantry cranes, with the local utility, Southern California Edison, building the make-ready electrical infrastructure (California Energy Commission, 2024). In parallel, guidance documents such as the Port Electrification Handbook developed by Pacific Northwest National Laboratory provide structured approaches for assessing energy demand, planning infrastructure upgrades, and evaluating implementation pathways (PNNL, 2024). Utilities and research organizations, including EPRI, have also developed case studies of port equipment electrification opportunities, including electrical infrastructure impacts and costs (EPRI, 2006). In Europe, the Port of Rotterdam area hosts renewable energy developments such as the 119.3 MW Maasvlakte 2 onshore wind farm, built on the port's seawall, whose output is used by the Dutch Ministry of Infrastructure and Water Management (Eneco, n.d.).

In the United States, large-scale electrification initiatives have highlighted the importance of early and coordinated infrastructure planning. Studies such as the Washington State shore power assessment demonstrate that grid capacity, permitting timelines, and utility coordination are often critical path items that influence project feasibility and schedule (Moffatt & Nichol et al., 2026). These findings are broadly applicable to other decarbonization initiatives, where energy infrastructure constraints can delay or limit implementation if not addressed proactively. Industry experience also shows that infrastructure upgrades must be aligned with phased deployment of electrified systems to balance investment costs and operational requirements.

In DMCs, energy infrastructure development is a key enabling factor for port decarbonization, but significant challenges remain. Many ports face limitations in grid capacity, reliability, and access to renewable energy, which can constrain the adoption of electrification-based solutions. However, there is growing interest in integrating renewable energy and distributed systems within port environments, particularly in locations with strong solar or wind resources. As ports in the region seek to modernize and align with global sustainability trends, investments in energy infrastructure will be essential to support future demand and enable participation in low-carbon supply chains.

Successful implementation of this practice requires coordinated action across multiple stakeholders.

• Policy and regulatory frameworks play an important role in enabling investment, defining standards, and facilitating grid connections.
• Close collaboration with utilities is essential to assess capacity, plan upgrades, and ensure reliable service.
• Advances in technology, including battery energy storage systems, smart grids, and energy management platforms, can improve system flexibility and efficiency.
• Integrated planning approaches that consider multiple decarbonization pathways simultaneously are critical to avoid under- or over-investment and ensure long-term compatibility.

Key challenges include high capital costs, long development timelines, permitting complexity, and uncertainty in future energy demand. Addressing these challenges through phased implementation, public-private partnerships, and strategic planning is essential to enable the transition toward low-emission port environments.