Abstract:
The maritime transport sector is responsible for 2–3% of global CO2 emissions, prompting the
International Maritime Organization (IMO) to enforce strict decarbonization regulations under
the MARPOL Annex VI framework, specifically the compliance with Energy Efficiency
Existing Ship Index (EEXI) and Carbon Intensity Indicator (CII) standards. This study aims to
analyze the readiness and implementation of LNG/C Coral Energy in fulfilling these emission
reduction regulations, as well as to evaluate the role of LNG in optimizing operational
expenditure (OPEX) efficiency compared to conventional fuels. The applied research method is
descriptive qualitative, utilizing data collection techniques such as targeted operational
observation using the Fuel Gas Supply System (FGSS) and Engine Performance Monitoring
System (EPMS) instruments, limited documentation studies, and literature reviews during the
sea project period. Data analysis was conducted systematically using the Strengths, Weaknesses,
Opportunities, Threats (SWOT) matrix analysis to formulate alternative problem-solving
strategies.
The results indicate that the integration of the Ship Energy Efficiency Management Plan
(SEEMP) by maximizing the utilization of Boil-Off Gas (BOG) as the primary fuel for the Dual
Fuel Diesel Electric (DFDE) machinery is highly effective in meeting IMO regulations. This
cargo circulation optimization successfully reduces carbon (CO2) emissions by 20–25%, cuts
nitrogen oxides (NOx) by up to 85%, and eliminates sulfur oxides (SOx) and particulate matter
close to 100%, consistently maintaining the vessel's carbon intensity report in the best rating (A
or B). From financial and mechanical perspectives, LNG provides a superior comparative
advantage due to its net calorific value (Lower Heating Value) of 49.5 MJ/kg, which
significantly surpasses MGO at 42.7 MJ/kg. The clean combustion characteristics of LNG
radically minimize carbon deposits in internal engine cylinders, extending overhaul intervals,
and enhancing the efficiency of the Planned Maintenance System (PMS). Furthermore, the
natural cleanliness of LNG emissions spares Anthony Veder from the initial capital expenditure
(CAPEX) for Exhaust Gas Scrubber installations and offers strategic economic hedging against
future crude oil price fluctuations and carbon tax implementations.
