Karen Bacher

New international requirements for the carbon footprint of ships, sheds new light on the importance of maintenance and repair of machines.

It is now a requirement that ships traveling in international waters can document their environmental footprint, using the CII (carbon intensity indicator) *. As of 2023, this applies to all ships above 5,000 GT in the transport, the Ropax and the cruise sectors. The ships will be rated on a scale from A to E based on their imprints. That  may imply that ships classified below grade C could be refused a permission to sail.

Moreld Karsten Moholt has initiated a project that will help customers document their emission savings, through both long-term analysis, maintenance, and repair of machines (circular economy) as opposed to the purchase of a new machines (linear economy). The project is based on a collaboration with the Danish company ReFlow. It is led by siv.ing. student Karen Bacher (photo), – 22 years old and from Bergen. Karen Bacher is in her third year at Indøk (Industrial economics) at NTNU in Trondheim, and has a temporary contract with our company this summer. Karen has previous experience from a green transition project in the company ORKEL, assessing the gain in CO2 emissions and other environmental impact factors resulting from feed preservation in round bales as compared to traditional silo preservation in agriculture.

– With the aim of simplifying the documentation of the environmental performance of products and systems, ReFlow has developed a five-step CO2 calculation platform. By entering information about material and energy consumption, any electronic and maritime components, as well as waste materials, the platform calculates a variety of indicators such as the total CO2 footprint and the potential for reducing CO2 emissions, says Karen Bacher. Such a CO2 calculation may, in itself, be characterized as comprehensive because the process requires a significant amount of information about various elements and factors that are part of the life cycle of a product / system. Also, the process of preparing a template for the CO2 footprint of a number of different engine sizes has a challenging additional dimension: Engines of the same size may vary,  say,  between an Ex d and an Ex e engine. The starting point of this task has been to prepare a template for the CO2 savings that result from the re-winding of and stock changes in 14 different engine sizes of the types Ex d / Ex e, respectively.

– When the project has been completed, we will be able to calculate and document the CO2 that results from re-winding and changing the bearings of a specific engine. This documentation will provide the basis for a template of calculations that we may, completely or partially, reuse. Relevant standards and guidelines that are associated with sustainability and the maritime industry, such as the DNV Carbon Index, EU taxonomy, IMO rules, explain precisely why this framework will constitute a valuable tool. The processes developed will be integrated into our digital quality system. That way, we may to provide our customers both an offer and final reports that contain a full documentation of their CO2 savings, says Karen Bacher.

*KILDE: https://www.dnv.com/maritime/insights/topics/CII-carbon-intensity-indicator/index.html