Container Ship Emissions & Retrofit Radar

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)

#1,042 of 2,098 container ships

CO₂ intensity

8.4 g CO₂/dwt·nm

vs segment average (10.39)

-19% greener

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

CII band distribution

1,079 at D/E

A 312B 412C 707D 598E 481

2,510 rated vessels · 552 of the D/E set dock within 12 months

Docking pipeline — D/E vessels per quarter

101

'27 Q1

'27 Q2

'27 Q3

'27 Q4

118

'28 Q1

105

'28 Q2

'28 Q3

Windows estimated from the class-expiry docking model, not bookings.

Top eligible retrofit measures for this segment

Measure	Eligible	CO₂ reduction	Capex band	Payback	Confidence
Turbocharger cut-out	1,640	1–3%	€80k–250k	—	vendor claim
Propeller redesign / replacement	1,427	5–10%	€400k–1,200k	—	vendor claim
Bulbous bow reprofiling	1,330	2–6%	€300k–900k	—	vendor claim
Methanol dual-fuel conversion	933	5–15%	€8,000k–20,000k	—	vendor claim
LNG dual-fuel conversion	763	15–25%	€15,000k–35,000k	—	vendor claim
Shaft generator / PTO	348	3–6%	€500–1,500/kW	—	vendor claim

Capex bands are indicative vendor/literature priors. Payback appears once price parameters are configured.

Retrofit opportunity in this segment

623

D/E vessels with at least one eligible measure

€3,176–7,513M

capex range, top measure per vessel (623 of 623 with computable scaling)

1.44–2.55 Mt

annual CO₂ reduction available (vendor-claimed ranges × reported emissions)

Retrofit prospects — worst band first

Vessel	Band	Age	Drop year	Req. reduction 2030	Dock window
HANSA AFRICA · 25-60k	E	16y	2026	78%	Dec 2027
MSC ANNAMARIA · <25k	E	1y	2026	72%	Oct 2027
SEPELU · <25k	E	26y	2026	69%	Jul 2028
C LION · 100-200k	E	21y	2026	59%	Feb 2028
HAMBURG TRADER · <25k	E	21y	2026	55%	Jul 2026

See all 2,510 rated container ships with exposure and dock windows. Sign in →

Note: Container/ro-ro cargo ship vessels are excluded from this ranking — their CII type is a per-vessel flag-state determination, so no valid comparison metric exists for them.

Sort 🌱 Greenest first 🔧 Least efficient first — retrofit candidates

Size (TEU)

All sizes < 3,000 TEU 3k – 8k TEU 8k – 14k TEU > 14,000 TEU

Year

2025 2024

2,076

vessels ranked

2.25

greenest (g CO₂/dwt·nm)

8.41

segment median

#	Vessel	Size (TEU)	Built	Length	Main Engine	Carbon intensity — AER (g CO₂/dwt·nm)	Grade
1001	VUOKSI MAERSK IMO 9775775	3,700 TEU	2018	200 m	MAN - 6S70ME-C8	8.2	C
1002	MAERSK HARTFORD IMO 9333008	6,200 TEU	2007	299 m	Doosan - 10RT-flex96C	8.2	C
1003	MSC FAIRFIELD IMO 9302633	8,204 TEU	2006	336 m	MAN - 12K98MC	8.2	C
1004	MSC HIMANSHI IMO 9127540	2,072 TEU	1997	188 m	Sulzer - 6RTA72U	8.2	C
1005	DELPHINUS C IMO 9337652	4,888 TEU	2007	294 m	MAN - 9K98ME-C	8.3	C
1006	VICENTE PINZON IMO 9625396	4,800 TEU	2014	255 m	MAN - 8S70ME-C8	8.3	C
1007	SPIRIT OF HONG KONG IMO 9456953	4,255 TEU	2010	262 m	Wärtsilä - 7RT-flex82C	8.3	C
1008	W KITHIRA IMO 9215323	6,802 TEU	2001	300 m	HHI - 12RTA96C	8.3	C
1009	XIN XIA MEN IMO 9270476	5,668 TEU	2004	280 m	Mitsui - 12K90MC-C	8.3	C
1010	MSC ANAHITA IMO 9302085	5,800 TEU	2006	285 m	MAN - 11K98MC	8.3	C
1011	NYK DAEDALUS IMO 9337614	4,888 TEU	2007	294 m	MAN - 9K98MC-C	8.3	C
1012	CMA CGM VOLTAIRE IMO 9635652	6,900 TEU	2011	270 m	HHI - 8RT-FLEX82T	8.3	C
1013	MSC DYMPHNA IMO 9110391	5,711 TEU	1996	275 m	MAN - 12K90MC-C	8.3	C
1014	MSC FREEPORT IMO 9301330	5,060 TEU	2006	294 m	Hyundai - 9 K 90 MC-C	8.3	C
1015	CMA CGM SYDNEY IMO 9315953	4,363 TEU	2007	264 m	MAN - 8K90MC-C	8.3	C
1016	MSC YUXIN IMO 9966946	1,800 TEU	2024	172 m	MAN - 6S60ME-C10	8.3	C
1017	JOLLY ARGENTO IMO 9467043	4,400 TEU	2010	264 m	MAN - 8K90MC-C	8.3	C
1018	MSC MICHIGAN VII IMO 9196864	6,252 TEU	2000	304 m	Hyundai - 10 K 98 MC-C	8.3	C
1019	NYK ROMULUS IMO 9416989	4,888 TEU	2010	294 m	MAN - 9K98ME-C	8.3	C
1020	PANDA 009 IMO 9294812	5,527 TEU	2006	276 m	Sulzer - 10RT-flex96C	8.4	C
1021	IRENES RESPECT IMO 9964144	2,824 TEU	2024	186 m	HD Hyundai Heavy Industries Co Ltd - South Korea 6S60ME-C10-HPSCR	8.4	C
1022	MAERSK SYDNEY IMO 9289958	7,500 TEU	2005	335 m	Diesel United - 12 RT-FLEX 96C	8.4	C
1023	NICARAGUA EXPRESS IMO 9635676	6,900 TEU	2013	270 m	Hyundai - 8S80ME-C9.2	8.4	C
1024	MSC NEDERLAND III IMO 8918954	3,007 TEU	1992	237 m	BREMER VULKAN AG SCHIFFBAU UND MASCHINENFABRIK 7 L 80 MC	8.4	C
1025	GABRIEL A IMO 9300659	1,676 TEU	2004	156 m	MAN - 7S50MC-C	8.4	C
1026	MAERSK CHICAGO IMO 9332975	6,188 TEU	2007	299 m	Wärtsilä - 10RT-flex96C	8.4	C
1027	MAERSK NEWPORT IMO 9356127	2,478 TEU	2008	210 m	Doosan - 7L70ME-C	8.4	C
1028	SPIRIT OF SYDNEY IMO 9391672	3,630 TEU	2005	254 m	MAN - 8S70MC-C	8.4	C
1029	MSC ARCHIMIDIS IMO 9315379	7,943 TEU	2006	318 m	Sulzer - 12RT-flex96C	8.4	C
1030	ZIM SHANGHAI IMO 9305570	9,469 TEU	2006	351 m	MAN - 12K98MC	8.4	C
1031	MOL PROFICIENCY IMO 9403619	6,350 TEU	2007	293 m	MAN - 11K98MC	8.4	C
1032	MAERSK KENTUCKY IMO 9193240	4,300 TEU	1999	292 m	HHI - 10K90MC-C MK5	8.4	C
1033	LORRAINE IMO 9311763	2,742 TEU	2006	222 m	MAN - 7L70MC-C	8.4	C
1034	MAERSK SENTOSA IMO 9315202	5,648 TEU	2007	318 m	Wärtsilä - 11RT-flex96C	8.4	C
1035	LODUR IMO 9219381	3,091 TEU	2003	220 m	H. CEGIELSKI-POZNAN S.A. 7 K 80 MC-C	8.4	C
1036	MSC QINGDAO IMO 9256470	7,731 TEU	2004	323 m	MAN - 12K98MC-C	8.4	C
1037	SEOUL EXPRESS IMO 9193305	4,890 TEU	2000	294 m	MAN - 7K98MC	8.4	C
1038	TOKYO EXPRESS IMO 9193290	4,890 TEU	2000	294 m	MAN - 7K98MC	8.4	C
1039	CMA CGM VERDI IMO 9331165	6,039 TEU	2008	276 m	Hyundai - 10 RTA 96 C	8.4	C
1040	VOLGA MAERSK IMO 9775749	3,700 TEU	2018	200 m	STX - 6G60ME-C9	8.4	C
1041	DACHAN BAY EXPRESS IMO 9539664	4,664 TEU	2012	260 m	CSSC - 8K80ME-C9	8.4	C
1042	MSC PRATITI IMO 9280861	4,992 TEU	2004	294 m	Hyundai - 9 K 90 MC-C	8.4	C
1043	PANDA 008 IMO 9248162	6,078 TEU	2003	279 m	Hyundai - 10 RTA 96 C	8.4	C
1044	CYPRESS IMO 9461477	8,600 TEU	2011	335 m	Wärtsilä - 12RT-flex96C	8.4	C
1045	MSC CADIZ IMO 9480203	5,550 TEU	2011	270 m	MAN - 7K98MC-C	8.5	C
1046	INDEPENDENT PRIMERO IMO 9298636	3,091 TEU	2006	220 m	MAN - 7K80MC-C	8.5	C
1047	MSC AQUARIUS IMO 9262704	6,492 TEU	2003	300 m	Diesel United - 12RTA96C	8.5	C
1048	LAUST MAERSK IMO 9190743	4,045 TEU	2001	266 m	Doosan - 10K90MC	8.5	C
1049	SEASPAN SAIGON IMO 9301809	4,250 TEU	2006	260 m	MAN - 8K90MC-C	8.5	C
1050	MED BEYKOZ IMO 9064748	2,480 TEU	1994	203 m	KOREA HEAVY INDUSTRIES & CONSTRUCTION, CHANGWON SOUTH KOREA 7 S 70 MC	8.5	C

Page 21 of 41 — 2,034 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.