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LNG engine Figure 6
24% Weighted-average distribution of participants’ answers to
the question: “In which of the following options would you
invest to improve the energy efficiency of a newly built?"

Ammonia engine Vessel energy efficiency: The most
3% promising solutions
Various suggested solutions are being
considered for the future of ship pro-
pulsion, with attention usually being
on fuel and, subsequently, on the
engine capable of utilising it.
In a relevant question, where partici-
pants could select up to four answers,
the respondents expressed their opin-
ion on which technology we should
invest in to enhance the energy effi-
ciency of newbuildings.
The available options included: LNG
engines, ammonia engines, metha-
Methanol engine nol engines, CO capture and storage
14% systems, as well as options for “none
2
of the proposed options” and “other”.
Based on the responses’ weighted
average, the most popular one was
“none of the proposed options”. 35%
of the participants believe that none of
the aforementioned alternatives con-
stitutes the best step forward, which is
indicative of the industry’s uncertainty
in the run-up to the green transition.
24% of the participants believe in the
None of potential of CO capture systems and
2
the proposed 24% see promise in LNG as fuel. Of
options course, LNG is already used to a sig-
35% nificant degree and there are many
LNG-fuelled vessels in the orderbook.
However, it must be noted that cer-
tain analysts and market sources con-
sider it a transitional fuel due to its
CO Capture particularly high methane emissions.
2
Systems 14% of the respondents would choose
24% to invest in methanol engines and 3%
in ammonia engines.

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