Page 108 - ΝΑΥΤΙΚΑ ΧΡΟΝΙΚΑ - ΟΚΤΩΒΡΙΟΣ 2024

GREEN SHIPPING / SURVEY

Implementation of multiple techno- Figure 4
logical solutions: A one-way path? Weighted-average distribution of participants’ answers to the question: “Which of the
There are various approaches in the following measures do you believe to be the most effective solution for reducing a
ship’s carbon footprint?”
search for - possibly multiple - ways
to improve the energy efficiency of
ships and thus reduce their environ- The implementation
mental footprint. Some of them are of multiple
based on future technologies, such as technological solutions Other
equipping ships with alternative fuel
engines, while others rely on currently 64.2% 6.3%
available tools, such as cold ironing
and the installation of more tangible
technological solutions.
In response to a relevant question,
the respondents selected the meas-
ures they consider most effective for
improving vessel energy efficiency.
For this question, participants had the
option to choose up to four answers.
The analysis of multiple-choice
questions is based on the principle
that each one of the participants Application of new technology
is of “equal value”. Therefore, each anti-fouling coatings
participant’s responses have a unit
value. For instance, each response 10.1%
from a participant who selected four
answers has a value of 0.25, while
each response from a participant
who selected two answers has a
value of 0.5.
The percentages presented in Choosing alternative
the graph below represent the fuels with lower
weighted average of the participants’ emissions
responses.
According to the responses, the most 17.7%
effective solution is “choosing alter- Installation
native fuels with lower emissions”, of air lubrication system
which accumulated a percentage of
17.7%. The “application of new tech- 0.5%
nology anti-fouling coatings” comes
second with 10.1%, followed by “the
installation of rotor sails” with 1.2%,
and “the installation of an air lubrica-
tion system” with 0.5%.
Additionally, 6.3% of the participants
believe there are many other promis-
ing solutions, suggesting CO capture
2
and storage, cold-ironing, and ship
design optimisation, among others.
However, based on the responses,
the prevailing view is that shipping is
moving towards a future where the Installation
installation of multiple technological of rotor sails
solutions is a one-way street. 64.2%
of the participants (on average) agree 1.2%
with this approach.

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