Most Emission-Efficient Vehicle 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)

#24 of 479 vehicle carriers

CO₂ intensity

11.2 g CO₂/dwt·nm

vs segment average (16.33)

-31% 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

489

vessels ranked

8.82

greenest (g CO₂/t·nm)

15.82

segment median

#	Vessel	Size (DWT)	Built	Length	Main Engine	Carbon intensity — AER (g CO₂/dwt·nm)	Grade
1	TØNSBERG IMO 9515383	43,878	2011	265 m	MAN - 7L70ME-C8	8.8	A
2	SALOME IMO 9515412	43,878	2012	265 m	MAN - 7L70ME-C8	8.8	A
3	PARSIFAL IMO 9515395	43,878	2011	265 m	MAN - 7L70ME-C8	8.9	A
4	HOEGH AUSTRALIS IMO 9962691	25,552	2025	200 m	MAN-B&W 7S60ME-C10-GI	9.1	A
5	HOEGH MOONLIGHT IMO 9971252	25,610	2025	200 m	MAN-B&W 7S60ME-C10-GI	9.4	A
6	HOEGH SUNRISE IMO 9971264	25,517	2025	200 m	MAN-B&W 7S60ME-C10-GI	9.5	A
7	TYSLA IMO 9515400	43,878	2012	265 m	MAN - 7L70ME-C8	9.8	A
8	HOEGH BOREALIS IMO 9962689	25,587	2024	200 m	MAN-B&W 7S60ME-C10-GI	9.9	A
9	HOEGH SUNLIGHT IMO 9962706	25,200	2025	200 m	MAN-B&W 7S60ME-C10-GI	10.1	A
10	HOEGH AURORA IMO 9962677	25,563	2024	200 m	MAN-B&W 7S60ME-C10-GI	10.3	A
11	MANON IMO 9179725	28,360	1999	228 m	Korea Heavy Industries & Constr Co Ltd (HANJUNG) - South Korea 8S60MC	10.7	A
12	ARC INTEGRITY IMO 9332949	30,386	2008	228 m	MAN - 7S60MC-C	10.7	A
13	ARC COMMITMENT IMO 9505039	31,143	2011	231 m	MAN - 7S60MC	10.7	A
14	CM SHEN ZHEN IMO 1040289	25,640	2026	220 m	MAN-B&W 7S60ME-C10-LGIM	10.8	A
15	ARC INDEPENDENCE IMO 9332925	30,383	2007	228 m	MAN - 7S60MC-C	10.8	A
16	DORADO LEADER IMO 9308895	21,550	2006	200 m	Mitsubishi - 8UEC60LSII	10.8	A
17	WAY FORWARD IMO 9945617	18,565	2024	200 m	MAN-B&W 6S60ME-C10-GI	10.9	A
18	NABUCCO IMO 9731652	23,959	2021	200 m	MAN - 8S60ME-C8	10.9	A
19	CAELUM ACE IMO 1026324	19,893	2025	197 m	MAN-B&W 6S60ME-C10-GI	10.9	A
21	EMDEN IMO 9941788	19,243	2023	200 m	MAN-B&W 6S60ME-C10-GI	11.1	A
20	ANIARA IMO 9377494	30,089	2008	237 m	MAN - 8S60ME-C	11.1	A
22	TIRRANNA IMO 9377523	30,089	2009	237 m	Doosan - 8S60ME-C	11.1	A
23	HOEGH ST. PETERSBURG IMO 9420045	27,352	2009	229 m	HSD ENGINE CO. LTD. 7S60MC	11.2	A
24	TURQUOISE ACE IMO 9969132	18,439	2024	200 m	MAN-B&W 6S60ME-C10-GI	11.2	A
25	FUTURE WAY IMO 9945590	18,610	2024	200 m	MAN-B&W 6S60ME-C10-GI	11.2	A
26	HOEGH TRADER IMO 9171280	27,100	1998	229 m	Korea Heavy Industries 7S60MC	11.2	A
27	HOEGH SHANGHAI IMO 9312482	27,178	2007	229 m	MAN - 7S60MC	11.2	A
28	OBERON IMO 9377509	30,134	2008	237 m	MAN - 7S60MC-C	11.3	A
29	MORNING LUCY IMO 9383431	28,080	2009	232 m	Hyundai - 7 S 60 MC	11.4	A
30	ANGELITE ACE IMO 1024376	18,473	2025	200 m	MITSUI E&S Co., Ltd. Marine Propulsion Systems Div. Tamano Factory	11.4	A
31	TIJUCA IMO 9377511	30,089	2008	237 m	Doosan - 7S60MC-C	11.5	A
32	TOURMALINE ACE IMO 9979084	18,467	2024	200 m	MITSUI E&S Co., Ltd. Marine Propulsion Systems Div. Tamano Factory	11.6	A
33	DON CARLOS IMO 9122655	28,142	1997	228 m	Korea Heavy Industries & Constr Co Ltd (HANJUNG) - South Korea 8S60MC	11.6	A
34	HOEGH LONDON IMO 9342205	27,100	2008	229 m	MAN - 7S60MC	11.6	A
35	HOEGH COPENHAGEN IMO 9420057	27,175	2010	229 m	HSD ENGINE CO. LTD. 7S60MC	11.6	A
36	MORNING LISA IMO 9383417	28,084	2008	232 m	MAN - 7S60MC-C	11.7	A
37	HOEGH BERLIN IMO 9295842	27,178	2005	229 m	MAN - 7S60MC	11.7	A
38	LAKE TRAVIS IMO 9964297	19,200	2025	200 m	MAN-B&W 7S60ME-C10-GI	11.7	A
39	LAPIS ACE IMO 9991159	18,377	2024	200 m	MITSUI E&S Co., Ltd. Marine Propulsion Systems Div. Tamano Factory	11.7	A
40	TALISMAN IMO 9191319	38,500	2000	241 m	Korea Heavy Industries 8L70MC-MKV	11.8	A
41	CM HONG KONG IMO 1040277	25,505	2025	220 m	MAN-B&W 7S60ME-C10-LGIM	11.8	A
42	ARC ENDEAVOR IMO 9505065	28,837	2011	230 m	Hyundai - 8S60ME-C8	11.9	A
44	ARC DEFENDER IMO 9375264	22,144	2008	200 m	Mitsubishi - 7UEC60LSII	11.9	A
43	HOEGH ASIA IMO 9191876	27,564	2000	229 m	HSD Engine Co Ltd - South Korea 7S60MC	11.9	A
45	CELESTE ACE IMO 9982990	19,914	2024	200 m	MAN-B&W 6S60ME-C10-GI	11.9	A
46	TETHYS HIGHWAY IMO 1046051	19,753	2025	200 m	MAN-B&W 7S60ME-C10	12.1	A
47	DAISY LEADER IMO 9960227	18,605	2024	200 m	MAN-B&W 8S50ME-C9-GI	12.1	A
48	LAKE SAINT ANNE IMO 9994113	19,216	2025	200 m	MAN-B&W 7S60ME-C10-GI	12.2	A
49	CIELO ACE IMO 9999383	19,853	2025	200 m	MAN-B&W 6S60ME-C10-GI	12.2	A
50	TITUS IMO 9700512	23,889	2018	200 m	MAN - 8S60ME-C8	12.2	A

Page 1 of 10 — 479 vessels

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.