New Class Guideline for installation of containerised generator sets

Whether you are a ship manager in need of temporary additional or replacement power, or a supplier to the maritime industry renting out containerised generator sets, we recommend you acquaint yourself with the content of the new Class Guideline to ensure a smooth installation of a containerised generator set.

New Class guideline

Relevant for owners/ managers, design offices, shipyards, suppliers and flag states.

DNV frequently receives questions related to the installation of containeriszed generator sets (CGSs), sometimes referred to as “powerpacks”. Many of these questions were already answered in a technical and regulatory news, number 11/2016. That news has now been superseded by a new Class Guideline, CG-0588, available on the DNV website – see link below.

CG-0588 gives a more comprehensive overview of the requirements for installation than the referred news from 2016. Furthermore, it does not only cover the use of a CGS in case of damage to an auxiliary generator, but also the use of a CGS in case of damage to the emergency generator and the use of a CGS as a temporary additional source of power, for example for additional reefer cargo or seismic equipment.

By addressing the issue in a Class Guideline, we are making it more convenient for managers and suppliers to have access to the latest information. In addition, it will be easier for DNV to update the document with any changes to requirements or recommendations.


We recommend relevant parties read the new Class Guideline so that when the need for a temporary power supply arises, you know what to look for or, alternatively, know what to offer.


  • Class guidelines (CG) “Containerised generator sets”, doc code: DNV-CG-0588 – find here


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