Most Emission-Efficient Bulk Carriers

Ships ranked by AER (Annual Efficiency Ratio) — grams of CO₂ emitted per tonne of deadweight carried one nautical mile (g CO₂/dwt·nm), the IMO carbon-intensity metric behind the CII rating — from official EU MRV emissions data for reporting year 2025. Lower is greener. Pick a segment and size class to see the greenest vessels first.

Segment rank (2025)

#105 of 3,436 bulk carriers

CO₂ intensity

2.5 g CO₂/dwt·nm

vs segment average (4.71)

-47% greener

Bulk Carrier Container Ship Oil Tanker Chemical Tanker Gas Carrier LNG Carrier General Cargo Vehicle Carrier Refrigerated Cargo Ro-Ro Cargo

Sort 🌱 Greenest first 🔧 Least efficient first — retrofit candidates

Size (DWT)

All sizes < 25,000 DWT 25k – 60k DWT 60k – 100k DWT 100k – 200k DWT > 200,000 DWT

Year

2025 2024

3,507

vessels ranked

1.74

greenest (g CO₂/t·nm)

4.46

segment median

#	Vessel	Size (DWT)	Built	Length	Main Engine	Carbon intensity — AER (g CO₂/dwt·nm)	Grade
104	BERGE KOSCIUSZKO IMO 9682954	181,394	2014	292 m	MAN - 6S70MC-C	2.5	A
102	CAPE PEONY IMO 9425447	181,325	2012	292 m	Mitsui - 6S70MC-C	2.5	A
101	NAVIOS SAKURA IMO 9951927	182,169	2023	292 m	MAN B&W; 6S70MC-C	2.5	A
103	MINERAL SUBIC IMO 9456678	179,396	2011	292 m	Hyundai - 6S70MC-C8	2.5	A
108	ANNABEL L IMO 9853711	180,803	2019	292 m	CSSC - 6G70ME-C9.2	2.5	A
107	BERGE MAWSON IMO 9738868	181,160	2015	292 m	Hitachi - 6S70MC-C	2.5	A
106	BULK SPAIN IMO 9469015	176,000	2011	292 m	Hudong Heavy Machinery - 6S70MC	2.5	A
105	CEMTEX SINCERITY IMO 9820661	82,200	2018	229 m	MAN - 6S60ME-C8	2.5	A
109	ATLANTIC DRAGON IMO 9874600	209,170	2020	300 m	CSSC - 6G70ME-C9	2.5	A
110	GREAT BLOSSOM IMO 9986910	82,781	2024	229 m	6S50ME-C9-HPSCR	2.5	A
111	MARAN BRILLIANCE IMO 9721035	179,129	2016	292 m	Hyundai - 6G70ME-C9	2.5	A
112	KANARIS IMO 9469857	178,064	2010	292 m	CSSC - 6S70MC	2.5	A
113	MIN MAY IMO 9751004	180,004	2016	295 m	MAN - 6S70MC-C	2.5	A
114	CAPE HARMONY IMO 9514212	178,373	2012	292 m	Mitsui - 6S70MC-C	2.5	A
117	ASL OTSL 2 IMO 9500766	180,643	2012	292 m	MAN - 7S65ME-C	2.5	A
116	CIC PAOLA IMO 9692820	181,059	2014	292 m	MAN - 6G70ME-C9	2.5	A
115	BACON IMO 9639517	205,170	2013	300 m	HHI - 6S70MC-C8.2	2.5	A
119	SEMA M IMO 9304150	106,552	2007	255 m	MAN - 6S60MC	2.5	A
118	FPMC B IMAGE IMO 9423334	206,699	2012	300 m	MAN - 7S65ME-C	2.5	A
122	GINA OLDENDORFF IMO 9942732	182,002	2023	292 m	MAN - 6G70ME-C9	2.6	A
124	SCARLET CYPRESS IMO 1016109	82,010	2024	229 m	MAN-B&W 6S50ME-C10	2.6	A
121	CAPE BRITANNIA IMO 9409065	178,369	2009	292 m	Mitsui - 6S70MC-C	2.6	A
120	FLAGSHIP IMO 9514224	176,387	2013	292 m	Mitsui - 6S70MC-C	2.6	A
123	MARVELLOUS IMO 9579872	180,000	2011	292 m	HHI - 6S70MC-C8	2.6	A
127	MARAN CONQUEROR IMO 9581241	179,718	2012	292 m	HHI - 6S70MC-C8.1	2.6	A
126	TAMPA IMO 9363027	177,723	2008	292 m	DALIAN MARINE - 6S70MC	2.6	A
125	KERYNIA IMO 9961439	82,114	2024	229 m	MAN-B&W 5S60ME-C10	2.6	A
128	MARAN FUTURE IMO 9739240	179,318	2015	292 m	MAN - 6G70ME-C9	2.6	A
129	NAVIOS ANTARES IMO 9481257	169,059	2006	288 m	HHI - 6S70MC6	2.6	A
130	STAR MARTHA IMO 9564097	180,274	2010	289 m	Mitsui - 6S70MC-C	2.6	A
132	STAR VESTA IMO 9446506	180,136	2010	289 m	Mitsui - 6S70MC-C	2.6	A
131	MAGDALENA OLDENDORFF IMO 9638044	206,010	2013	300 m	MAN - 6S70MC-C MKVIII	2.6	A
133	WILLIAM OLDENDORFF IMO 9623570	180,000	2017	292 m	Hyundai - 6S70MC-C8 (Tier II)	2.6	A
135	CHRISTINA V IMO 9658915	77,211	2014	225 m	MAN - 5S60MC-C8	2.6	A
134	LADY WYNN IMO 9861794	182,514	2020	292 m	Hitachi - 7S65ME-C8	2.6	A
137	SSI BRILLIANT IMO 9567099	175,428	2012	292 m	Hitachi - HITACHI-MAN B&W 6S70MC6	2.6	A
136	PELOREUS IMO 9702534	182,496	2014	292 m	Hitachi - 7S65ME-C	2.6	A
142	CAPE LILY IMO 9612430	181,303	2012	292 m	Mitsui - 6S70MC-CMKVII	2.6	A
141	ALPHA OPTIMISM IMO 9722388	179,258	2016	292 m	MAN - 6G70ME-C9	2.6	A
140	GOLDEN ZHEJIANG IMO 9443619	175,837	2010	292 m	MAN - 6S70MC	2.6	A
139	SAKIZAYA XCEL IMO 9934917	82,446	2022	229 m	Mitsui - 6S60ME-C8	2.6	A
138	TAHO EUDAIMONIA IMO 9919319	84,460	2022	228 m	Mitsui Engineering & Shipbuilding C Ltd - Japan 6S60ME-C8	2.6	A
143	CAPETAN IOANNIS IMO 9589695	180,652	2011	292 m	MAN - 6S70MC-C	2.6	A
144	HERO IMO 9446867	178,076	2010	292 m	Hudong Heavy Machinery - MAN B&W; 6 S 70 MC MK 6	2.6	A
147	BBG LIJIANG IMO 9971953	82,788	2024	229 m	Hudong Heavy Machinery - 6S60ME-C8	2.6	A
146	SAKIZAYA TREASURE IMO 9861328	82,500	2020	229 m	Mitsui - 6S60ME-C8	2.6	A
145	YUAN HANG WEI YE IMO 9371799	50,785	2006	190 m	MAK/Caterpillar - 12M43	2.6	A
150	NEW ORLEANS IMO 9743265	180,960	2015	292 m	MAN - 6G70ME-C9	2.6	A
149	WANG MAY IMO 9837327	180,682	2019	292 m	CSSC - 6G70ME-C9 (Tier III)	2.6	A
148	CS WU HAN IMO 9874715	180,000	2021	292 m	MAN - 6G70ME-C10	2.6	A

Page 3 of 69 — 3,436 vessels

← Prev Next →

Engine intelligence

Which engines power the greenest fleets?

The main engine is the single largest CO₂ source on board — typically well over 80% of a ship's emissions come from propulsion. We aggregated this ranking the other way around: every engine design is scored by the measured carbon intensity of the vessels carrying it, licensee-built units merged under their design brand. The verdict from the 2025 data — modern dual-fuel designs like MAN B&W's ME-GI and WinGD's X-DF families, together with EGR/SCR-abated and ultra-long-stroke G-type engines, consistently power the most emission-friendly ships in service.

Emission-friendly engine ranking

AER (Annual Efficiency Ratio) = annual CO₂ emissions ÷ (deadweight × distance sailed), the IMO carbon-intensity metric used for CII ratings. It is built only from measured CO₂, distance and deadweight — not the self-reported cargo transport-work figure, which is unreliable. Implausible outliers (top 2% per segment) are excluded. Grade A–E reflects each vessel's rank within its segment. Source: EMSA THETIS-MRV.