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All Journal NEUTRON : Research from all areas of the Civil Engineering
Ramadhansyah Putra Jaya
Universiti Malaysia Pahang Al-Sultan Abdullah
Civil Engineering, Building, Construction & Architecture Engineering Transportation

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TECHNO-ECONOMIC EVALUATION AND LIFECYCLE DECARBONIZATION PATHWAYS OF GREEN LOGISTIC SHIPS IN INDONESIAN ARCHIPELAGIC MARITIME FREIGHT NETWORKS: A SCENARIO-BASED ASSESSMENT Ni'matul Fahdiyah; Muhammad Ikhsan Setiawan; Ramadhansyah Putra Jaya
Neutron Vol 24 No 02 (2025): JANUARY 2025
Publisher : NAROTAMA UNIVERSITY, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29138/neutron.v24i02.299

Abstract

Decarbonizing maritime freight in Indonesia requires the joint assessment of ship propulsion, energy storage, wind assistance, and port electrification. This study develops a transparent scenario-based appraisal of a proposed 3,000-DWT-class hybrid green logistic ship for an illustrative Surabaya–Banjarmasin feeder service. The concept combines an LNG/diesel powertrain, 1,200-kWh battery energy storage, a Flettner rotor, and a 1-MW onshore power interface. The analytical framework follows IMO guidance for the Energy Efficiency Operational Indicator (EEOI), separate well-to-wake accounting, and discounted cash-flow analysis; national port statistics provide contextual evidence but cannot establish vessel-level fuel use or cash flows. A numerical consistency check of assumptions reported in the submitted manuscript—USD 1.85 million additional investment and USD 412,000 constant annual net savings over 15 years at 7.5%—produces a scenario NPV of USD 1.787 million, an internal rate of return of 21.0%, and discounted payback of approximately 5.69 years. These are conditional calculations, not observed commercial outcomes. The proposed 38.6% fuel saving and 82.3% life-cycle abatement cannot be validated without measured duty cycles, verified component performance, and fuel/electricity emission factors. The principal contribution is therefore an auditable assessment protocol and an explicit data-validation agenda for Indonesian short-sea freight electrification.
GREEN LOGISTIC SHIPS (GLS) AND DECARBONIZATION IN ARCHIPELAGIC MARITIME TRANSPORTATION: TECHNICAL FEASIBILITY, COLD IRONING INTERACTION, AND EMPIRICAL EVIDENCE FROM INDONESIAN PORT STATISTICS Ragil Wirantono; Sri Wiwoho Mudjanarko; Ramadhansyah Putra Jaya
Neutron Vol 24 No 02 (2025): JANUARY 2025
Publisher : NAROTAMA UNIVERSITY, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29138/neutron.v24i02.300

Abstract

Maritime decarbonization in Indonesia requires a coordinated approach linking vessel operations and port electricity infrastructure. This paper examines the feasibility of Green Logistic Ships (GLS) combining energy-efficient propulsion, just-in-time (JIT) arrival, shore power (cold ironing), and emissions monitoring. The study uses a traceable document-based review of Statistics Indonesia (BPS) sea transport publications for 2021–2024, International Maritime Organization (IMO) instruments, a shore-connection technical standard, and peer-reviewed research. A four-layer integration framework is proposed, with a reproducible method for evaluating fuel use, transport work, port electricity demand, and grid-adjusted emissions. The review establishes the relevance of shore power and operational optimisation but does not treat unverified fleet-wide efficiency estimates, port power-capacity values, or financial payback figures from an earlier draft as observed results. The principal output is an evidence-based technical assessment framework and a list of vessel- and port-level data needed to quantify Indonesia-specific benefits.
Co-Authors Muhammad Ikhsan Setiawan Ni'matul Fahdiyah Ragil Wirantono Sri Wiwoho Mudjanarko, Sri Wiwoho