IACS Guidelines for Onshore Power Supply Adoption in Shipping

The International Association of Classification Societies (IACS) has released Recommendation 182, which provides a comprehensive framework for the effective adoption of Onshore Power Supply (OPS) systems, also known as “cold ironing” or shore power. OPS is seen as a crucial tool in reducing pollution and meeting global decarbonisation goals. The recommendation offers detailed guidance for ship designers, builders, operators, and owners on integrating OPS systems into new builds and retrofits, addressing the technical and operational challenges associated with their implementation. It aligns with IMO MSC.1/Circ.1675 guidelines on the safe operation of OPS service in ports for ships engaged in international voyages.

The recommendation outlines key aspects to facilitate the adoption of OPS systems. It includes ship requirements for OPS, ship-to-shore connection protocols, testing procedures for the first connection, periodic testing requirements, operational safety measures, documentation of OPS procedures, pre-connection checklists, maintenance and testing plans, and quality assurance of shore supply. These guidelines aim to ensure the safe and efficient operation of OPS systems, emphasizing the importance of safety precautions, proper documentation, and regular maintenance to guarantee reliability and safety.

Ships engaged in international voyages are required to be equipped with ship-side installations capable of accepting shore power, including incoming power receptacles, shore connection switchgear, and necessary protections for compatibility with shore-side systems. Specific protocols are outlined for the connection of ship-side and shore-side systems, with mandatory tests at the first call at a shore supply point to ensure proper operation. Operational safety measures, documentation of OPS procedures, pre-connection checklists, and maintenance plans are essential for the ongoing reliability and safety of OPS systems. Assessing the quality of shore power supply is also emphasized to prevent damage to shipboard electrical systems and ensure a reliable power source during operations.

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