Understanding Onshore Power Supply

Overview

Onshore Power Supply (OPS), also known as Cold Ironing or Alternate Marine Power (AMP) is a system conceived for supplying electrical power to ships at port. This allows the auxiliary engines to shut down thereby reducing air pollution and noise emissions. It is an increasingly important technology as ports and shipowners work to meet stringent environmental regulations and address urban pollution concerns.

OPS reduces CO2 emissions by over 57% during a ship’s stay at berth and offers long-term cost savings by lowering fuel consumption and maintenance expenses. In addition, grid reliability is also enhanced by stabilizing local electrical networks and reducing reliance on fossil fuels.

Operational Benefits

Emission and Noise Reduction: Various studies have indicated that OPS significantly cuts harmful emissions, including CO2, NOx, SOx, and particulate matter. Studies indicate a 20% reduction in CO2, 34% in NOx, and 30% in SOx when auxiliary engine use is curtailed. This improves air quality around the ports and helps ships comply with emission control regulations. Additionally, turning off auxiliary engines reduces noise pollution, benefiting dockworkers and nearby communities.

Cost Savings and Efficiency: Although OPS infrastructure requires high initial investment, long-term operational savings include reduced fuel costs and lower maintenance expenses due to decreased engine usage. Ports that implement OPS attract vessels seeking sustainable berthing options, improving their competitiveness.

Grid Reliability and Infrastructure Needs: OPS enhances grid reliability by providing frequency stability and ancillary services. Effective infrastructure planning is necessary to meet varying power demands, ranging from 2-4 MW for ferries to 8-12 MW for container ships. Coordination with utility providers is crucial for ensuring adequate infrastructure improvements.

Regulatory Benefits

Compliance with FuelEU Maritime Regulation: Effective January 1, 2025, the FuelEU Maritime Regulation mandates OPS and zero-emission technologies to reduce greenhouse gas emissions. Non-compliance could result in fines, detention, or port access restrictions, making OPS adoption essential for shipowners.

Sustainability and Market Positioning: By integrating OPS, shipowners enhance their reputation and competitiveness in a sustainability-driven industry. The regulation also encourages the use of renewable and low-carbon fuels alongside OPS, positioning companies favorably in a market prioritizing green practices.

Monitoring, Reporting, and Financial Support: Structured monitoring and reporting frameworks ensure transparency in energy usage and emissions tracking. Compliance with these standards streamlines adaptation to evolving regulations. Public funding opportunities can mitigate high initial capital costs, making OPS implementation more feasible for smaller operators.

Environmental Impact

OPS dramatically reduces air pollution from s…

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