Comparative analysis of fuel consumption and CO₂ emission estimation based on ships activity and reported fuel consumption: the case of short sea shipping in Crete

Abstract

The main objective of this paper is to perform a comparative analysis between fuel consumption and CO2 emissions estimation and actual fuel consumption. A few years ago, detailed actual fuel consumption reports were collected from ship owners for determining the expenses on each trip but these reports were not publicly available. Nowadays ship owners report specific data including fuel consumption and CO2 emissions as per the requirements of EU MRV regulation. As a consequence, EMSA/MRV‐THETIS database is publicly available and provides annual reports of fuel consumption and CO2 emissions. The current study follows the bottom‐up methodology presented in detail in a recent publication where the fuel–energy consumption and air emissions (CO2, SOX, NOX, PM) of ships were calculated and presented for previous years. A detailed comparative analysis of results from calculated methodology and reported emissions data from EMSA/MRV‐THETIS database (MRV) was performed, which showed that there was a small difference in the results (about 6–12%), proving the reliability of the bottom‐up methodology for this geographic area and ships in study. © 2022 Society of Chemical Industry and John Wiley & Sons, Ltd.

Characterizing passenger-ship emissions: towards improved sustainability for MedMar fleet (gulf of Naples)

“…The objective of the EU MRV Regulation was to create a new legal framework for collection of data on maritime transport emissions; such data about ship efficiency would be provided to relevant markets with the aim of developing further policies towards greater sustainability and encourage emission reductions (Boviatsis and Tselentis 2019 ). Specifically, the EU MRV Regulation compelled companies to “monitor, report and verify” on an annual basis (starting from 2018) the fuel consumption, CO 2 emissions and energy efficiency of their ships on voyages to and from European Economic Area (EEA) ports (Doundoulakis and Papaefthimiou 2022 ; Eftestøl and Yliheljo 2022 ). Subsequently, on 1/03/2018, a new regulation released by IMO became effective, wherein basically it was proposed the “DCS” (“Data Collection System”) method for fuel consumption data management in 3 steps, namely, data collection, data analysis and, if appropriate, deciding on measures to be adopted to improve performance (Boviatsis and Tselentis 2019 ).…”