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UK Ports Embrace Shore power to Decarbonize Shipping
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The UK is poised to become a global leader in maritime sustainability by accelerating the adoption of shore power, also known as onshore power supply (OPS), in its ports.This initiative will enable ships to switch off their auxiliary engines and plug into the electricity grid while berthed, substantially reducing emissions and improving air quality. Bold policy action and targeted investment are essential to align economic growth with environmental and public health goals. By seizing this moment, the UK can drive green industry, create good jobs, and deliver on the Chancellor’s vision for a cleaner, more competitive economy.
Publication Date: 2025/12/09 14:58:49
The Problem with Ships at Berth
Traditionally, ships rely on auxiliary engines to generate electricity while docked, powering onboard systems like lighting, heating, ventilation, and refrigeration. These engines frequently enough run on heavy fuel oil, a particularly polluting fossil fuel. This practice contributes significantly to air pollution in port cities, impacting public health and the surroundings. According to the International Maritime Institution (IMO), ship emissions at berth can be a substantial source of pollutants like sulfur oxides (SOx), nitrogen oxides (NOx), and particulate matter (PM).
What is Shore Power (Onshore Power Supply – OPS)?
Shore power,or Onshore Power Supply (OPS),provides a direct electricity connection from the land-based grid to a ship at berth. This allows vessels to shut down their auxiliary engines and draw power from a perhaps cleaner source. The environmental benefits are substantial, particularly when the electricity grid is powered by renewable energy sources.
Benefits of Shore Power
- Reduced Emissions: Notable reductions in SOx, NOx, and PM emissions in port cities.
- Improved Air Quality: Better air quality for port communities, leading to improved public health.
- Noise Reduction: Quieter port operations as ships no longer need to run noisy auxiliary engines.
- Decarbonization of Maritime Sector: Supports the broader decarbonization goals of the maritime industry.
- Economic Opportunities: Drives investment in port infrastructure and creates jobs in the green technology sector.
UK Government Initiatives and Investment
The UK government recognizes the importance of shore power and is taking steps to encourage its adoption. In November 2023, the Department for Transport announced a £70 million fund to support the installation of shore power facilities in ports across England and Wales. This funding is intended to help ports cover the costs of grid connections and the necessary infrastructure. Further policy support is expected to build on this initial investment.
The Maritime and Ports plan, published in 2024, outlines the government’s commitment to a greener maritime sector, with shore power identified as a key enabler. The plan emphasizes the need for collaboration between government, ports, and shipping companies to accelerate the transition.
Challenges to Implementation
While the benefits of shore power are clear, several challenges need to be addressed for widespread implementation:
- High Initial Costs: Installing shore power infrastructure requires significant upfront investment.
- Grid Capacity: Ports need sufficient grid capacity to supply the electricity demands of multiple ships concurrently.
- Standardization: A lack of standardized connection interfaces can hinder interoperability between ships and shore power facilities.
- Regulatory Framework: A clear and consistent regulatory framework is needed to provide certainty for investors.
- Shipboard Compatibility: Ships need to be equipped with the necessary technology to connect to shore power
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