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 2024. Lower is greener. Pick a segment and size class to see the greenest vessels first.

Segment rank (2024)

#1,811 of 3,531 bulk carriers

CO₂ intensity

4.7 g CO₂/dwt·nm

vs segment average (4.87)

-5% 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

3,604

vessels ranked

1.42

greenest (g CO₂/t·nm)

4.65

segment median

#	Vessel	Size (DWT)	Built	Length	Main Engine	Carbon intensity — AER (g CO₂/dwt·nm)	Grade
1801	ANGELE N IMO 9509528	55,804	2010	190 m	Diesel United - 6RT-flex50	4.6	C
1802	ELIM COURAGE IMO 9425760	58,163	2009	190 m	MAN - 6S50MC-C	4.6	C
1803	BULK SPIRIT IMO 9355501	52,950	2009	188 m	Kawasaki - 6S50MC-C	4.7	C
1804	MAKEDONIKOS IMO 9884605	61,087	2020	200 m	MAN - 6S50ME-B9	4.7	C
1805	LIGNUM GRID IMO 9897975	42,446	2022	180 m	Mitsui Engineering & Shipbuilding C Ltd - Japan 5S50ME-C9-HPSCR	4.7	C
1806	FLAG GANGOS IMO 9643908	56,526	2013	190 m	STX - 6S50MC-C8	4.7	C
1807	AFRICAN QUEEN IMO 9389930	55,000	2007	190 m	MAN - 6S50MC-C	4.7	C
1808	DSI DRAMMEN IMO 9775141	63,379	2016	200 m	Mitsui - 6S50ME-B9.3	4.7	C
1809	ERGUVAN S IMO 9603063	57,970	2011	190 m	MAN - 6S50MC-C	4.7	C
1810	NORVIC SINGAPORE IMO 9958341	39,738	2023	180 m	Makita Corp - Japan 6G45ME-C9-HPSCR	4.7	C
1811	CLIFTON BAY IMO 9615743	58,628	2012	197 m	Kawasaki - 6S50MC-C	4.7	C
1812	TZAREVETZ IMO 9968504	45,210	2024	190 m	MAN-B&W 5G50ME-C9	4.7	C
1813	STAR STONINGTON IMO 9575151	63,301	2012	200 m	MAN - 5S60ME-C8	4.7	C
1814	KAVO PERDIKA IMO 9584889	58,740	2013	197 m	MAN - 6S50MC-C7	4.7	C
1815	JUST IMO 9581370	57,551	2011	190 m	STX - 6S50MC-C7	4.7	C
1816	TIGER JILIN IMO 9712216	63,415	2015	200 m	MAN - 5S60ME-C8	4.7	C
1817	DENITA WAVE IMO 9476458	93,201	2011	229 m	STX - 6 S 60 MC-C 7	4.7	C
1818	GREAT 61 IMO 9731365	61,580	2015	200 m	MAN - 6S50ME-B9	4.7	C
1819	LIBRA IMO 9494242	56,702	2010	190 m	MAN - 6S50MC-C	4.7	C
1820	SUMMIT SUCCESS IMO 9310628	82,922	2005	229 m	Mitsui - 7 S 50 MC-C	4.7	C
1821	PACIFIC TALISMAN IMO 9712931	61,415	2016	200 m	MAN - 6S50ME-B9	4.7	C
1822	ROSTRUM HAMBURG IMO 9997268	40,012	2024	180 m	MAN-B&W 5S50ME-C9	4.7	C
1823	KN FOREST IMO 9558268	58,037	2013	190 m	Mitsui - 6S50MC-C8	4.7	C
1824	KRONOS IMO 9625815	57,399	2012	190 m	STX - 6 S 50 MC-C	4.7	C
1825	AGAPI S IMO 9514822	62,145	2012	208 m	STX - 6S50MC-C8.1	4.7	C
1826	MARO MARO IMO 9553725	61,143	2022	200 m	MAN - 6S50ME-B9	4.7	C
1827	WEST BAY IMO 9278868	52,451	2004	190 m	MITSUI ENGINEERING 6S50MC	4.7	C
1828	NEW ISLAND IMO 9258349	47,304	2002	190 m	Mitsui - 6S50MC	4.7	C
1829	GREAT ZHOU IMO 9766932	64,794	2017	200 m	Kawasaki - 6G50ME-B9.3	4.7	C
1830	HONG KONG EAGLE IMO 9743590	63,472	2016	200 m	DALIAN MARINE - 5S60ME-C8	4.7	C
1831	KYTHIRA IMO 9943243	37,400	2022	180 m	MAN - 6S46ME-B8	4.7	C
1832	EQUINOX SEAS IMO 9229697	52,009	2000	190 m	BRODOSPLIT - 6S50MC	4.7	C
1833	FEDERAL PRESTIGE IMO 9942196	42,701	2023	183 m	MAN-B&W 5S50ME-C9	4.7	C
1834	CETUS HUMPBACK IMO 9670731	43,479	2015	190 m	MAN - 5S50ME-B9	4.7	C
1835	HAATO IMO 9589786	61,472	2011	200 m	MAN - 6S60MC	4.7	C
1836	SUNRISE JADE IMO 9732955	63,244	2015	200 m	Doosan - 5S60ME-C8	4.7	C
1837	OZGUR AKSOY IMO 9475040	58,410	2011	196 m	Doosan - 6S50MC-C	4.7	C
1838	EVA ISTANBUL IMO 9972440	40,565	2023	180 m	China Shipbuilding Industry Co Diesel Engine Co Ltd 5S50ME-C9-HPSCR	4.7	C
1839	HONY FUTURE IMO 9583823	56,716	2006	190 m	MAN - 6S50MC-C	4.7	C
1840	ZHOUSHAN ISLAND IMO 9610729	58,044	2013	190 m	Mitsui - 7 S 50 MC-C	4.7	C
1841	STELLA L IMO 9500687	58,096	2012	190 m	MAN - 6S50MC-C	4.7	C
1842	KWAI KWAI IMO 9780976	57,819	2016	190 m	Mitsui - 6S50MC-C	4.7	C
1843	SPAR TAURUS IMO 9299288	53,195	2005	190 m	MAN - 6S50MC-C	4.7	C
1844	ARIS T IMO 9343895	92,524	2007	230 m	STX - 7 S 50 MC-C	4.7	C
1845	WADI ALYARMOUK IMO 9460772	80,384	2010	229 m	MAN - 7S50MC-C	4.7	C
1846	VICTORIAN TRADER IMO 9945526	40,200	2023	180 m	MAN - 5S50ME-C9	4.7	C
1847	XIN HAI TONG 36 IMO 9594626	56,559	2012	190 m	Doosan - 8S50MC-C	4.7	C
1848	AROMO IMO 9883144	37,927	2020	180 m	MAKITA - 6S50ME-C8	4.7	C
1849	BONAS IMO 9401972	51,687	2010	188 m	Mitsubishi - 6UEC50LSII	4.7	C
1850	CLIPPER BARI-STAR IMO 9792711	37,976	2023	180 m	MAN - 11G95ME-C9	4.7	C

Page 37 of 71 — 3,531 vessels

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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 2024 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.