Calculation of CO₂ emissions from engines on board service vessels at the Moroccan port of Mohammedia

¹ M2S2I Laboratory, Hassan II University of Casablanca, ENSET Mohammedia, Morocco,
² Institut supérieur d’études maritimes (ISEM), Casablanca, Morocco

^* Corresponding author: yassine.geanah-etu@etu.univh2c.ma

Abstract

Service vessels are essential for ensuring the smooth functioning of port operations, yet their environmental footprint remains largely underestimated compared to larger commercial ships. The goal of this study is to measure the carbon dioxide (CO₂) emissions produced by service vessels, such as pilot boats and tugboats, in the port of Mohammedia, Morocco. Throughout 2024, information on fuel consumption and operational profiles was gathered from seven representative vessels. According to the analysis, two tugboats accounted for more than 65% of the 1,124 tonnes of CO₂ emissions from service vessels in 2024. Emissions peaked in January and averaged 93.5 tonnes per month. These results draw attention to a little-known source of greenhouse gas emissions in port regions and emphasise the necessity of mitigation measures like switching to alternative propulsion technologies and optimising operations. This study backs Morocco’s pledge to cut greenhouse gas emissions and encourage environmentally friendly coastal growth.