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)

#455 of 2,098 container ships

CO₂ intensity

5.9 g CO₂/dwt·nm

vs segment average (10.38)

-43% 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 · 443 of the D/E set dock within 12 months

Docking pipeline — D/E vessels per quarter

'27 Q1

'27 Q2

'27 Q3

'27 Q4

115

'28 Q1

'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%	Jan 2028
MSC ANNAMARIA · <25k	E	1y	2026	72%	Dec 2027
SEPELU · <25k	E	26y	2026	69%	Aug 2028
C LION · 100-200k	E	21y	2026	59%	Mar 2028
HAMBURG TRADER · <25k	E	21y	2026	55%	Feb 2027

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
451	CMA CGM JULES VERNE IMO 9454450	16,000 TEU	2013	396 m	Wärtsilä - 14RT-flex96C	5.9	B
450	CAP SAN ARTEMISSIO IMO 9633939	9,600 TEU	2014	333 m	MAN - 7S90ME-C9	5.9	B
454	CMA CGM ZHENG HE IMO 9706906	17,859 TEU	2015	399 m	CSSC - 11S90ME-C9	5.9	B
453	LUDWIGSHAFEN EXPRESS IMO 9613018	13,167 TEU	2014	367 m	Hyundai - 11K98ME	5.9	B
455	MSC ARIANE IMO 9484443	13,050 TEU	2012	366 m	Doosan - 12K98MC-C	5.9	B
456	CAP SAN LAZARO IMO 9717216	10,600 TEU	2015	331 m	MAN - 7S90ME-C10	5.9	B
459	MSC BEIJING IMO 9289099	8,089 TEU	2005	325 m	Sulzer - 12RTA96C	5.9	B
458	MSC CAROLE IMO 9785445	12,200 TEU	2021	328 m	Doosan - 8G95ME-C9	5.9	B
457	MSC ALTAIR IMO 9465277	13,102 TEU	2012	366 m	MAN - 12K98ME7	5.9	B
460	CSCL PACIFIC OCEAN IMO 9695133	18,982 TEU	2014	400 m	Hyundai - 12S90ME-C9	5.9	B
462	COSCO ENGLAND IMO 9516428	13,360 TEU	2008	366 m	MAN - 12K98ME7	5.9	B
461	NYK VEGA IMO 9312781	9,012 TEU	2006	338 m	Hyundai - 12 K 98 ME	5.9	B
463	COSCO DENMARK IMO 9516478	13,360 TEU	2008	366 m	MAN - 12K98ME7	5.9	B
464	MSC INGY IMO 9755945	19,472 TEU	2016	400 m	Doosan - 11G95ME-C9	5.9	B
465	MSC DANIELA IMO 9399002	13,798 TEU	2008	366 m	MAN - 12K98MC-C	6.0	B
466	MSC SIYA B IMO 9793947	11,800 TEU	2018	330 m	Doosan - 8X92	6.0	B
467	MSC MIRJA IMO 9762338	19,224 TEU	2016	398 m	Doosan - 11G95ME-C9	6.0	B
468	MSC RAPALLO IMO 9484455	13,050 TEU	2011	366 m	Doosan - 12K98MC-C	6.0	B
469	ELEONORA MAERSK IMO 9321500	11,000 TEU	2004	399 m	Doosan - DOOSAN-SULZER 14RT-FLEX96C	6.0	B
470	CAP SAN JUAN IMO 9717204	10,600 TEU	2015	331 m	MAN - 7S90ME-C10	6.0	B
471	MSC BERYL IMO 9467392	12,400 TEU	2010	366 m	MAN - 12K98MC-C	6.0	B
474	MSC BENEDETTA XIII IMO 9465253	13,102 TEU	2011	366 m	Hyundai - HHI MAN B&W; 12K98ME7	6.0	B
473	TOLTEN IMO 9612870	8,004 TEU	2012	300 m	Doosan - 7K98ME-MK7	6.0	B
472	CCNI ANGOL IMO 9683867	9,030 TEU	2015	300 m	MAN - 9G80ME-C9	6.0	B
475	MSC CLORINDA IMO 9484429	14,036 TEU	2012	366 m	Doosan - 12K98MC-C	6.0	B
477	NAGOYA EXPRESS IMO 9450428	8,749 TEU	2010	335 m	Hyundai - 12 K 98 ME	6.0	B
476	MAERSK CUNENE IMO 9561485	4,496 TEU	2008	249 m	HHI - 6S80ME-C9	6.0	B
478	HAIPHONG EXPRESS IMO 9778129	10,100 TEU	2018	336 m	CSSC - 10S90ME-C9	6.0	B
479	LAEM CHABANG EXPRESS IMO 9768007	10,100 TEU	2018	336 m	CSSC - 10S90ME-C9	6.0	B
482	EVER FAME IMO 9850800	11,888 TEU	2015	334 m	MAN - 9S90ME-C10	6.0	B
481	EVER TOP IMO 9665619	13,806 TEU	2014	368 m	MAN - 11S90ME-C9	6.0	B
480	HYUNDAI FAITH IMO 9347554	8,600 TEU	2008	340 m	Wärtsilä - 14RT-flex96C	6.0	B
483	MSC MADELEINE IMO 9305702	9,113 TEU	2006	348 m	MAN - 12K98ME	6.0	B
484	CMA CGM VOLGA IMO 9705081	9,200 TEU	2015	300 m	Hyundai - 9S90ME-C9	6.0	B
485	MSC ADONIS IMO 9706310	9,288 TEU	2015	300 m	Wärtsilä - 9X82	6.0	B
486	MSC CRISTINA IMO 9465241	13,102 TEU	2011	366 m	MAN - 12K98ME7	6.0	B
488	ULSAN EXPRESS IMO 9613020	13,167 TEU	2014	367 m	MAN - 11K98ME	6.0	B
487	CAPE AKRITAS IMO 9706190	11,010 TEU	2016	330 m	Hyundai - 8G95ME-C9	6.0	B
489	MAERSK FLORENCE IMO 9969053	5,800 TEU	2021	255 m	MAN-B&W 6G80ME-C10	6.1	B
491	MSC MAGNUM VII IMO 9252541	6,732 TEU	2003	300 m	Doosan - 10K98MC-C	6.1	B
490	KLEVEN IMO 9085546	6,418 TEU	1996	318 m	MAN - 12 K 90 MC	6.1	B
497	TENO IMO 9447859	8,004 TEU	2011	300 m	MAN - 7K98ME7	6.1	B
499	EMMA MAERSK IMO 9321483	11,000 TEU	2004	398 m	Wärtsilä - 14RT-flex96C	6.1	B
498	CAP SAN SOUNIO IMO 9633953	9,600 TEU	2014	333 m	MAN - 7S90ME-C9	6.1	B
496	ONE READINESS IMO 9952684	7,000 TEU	2023	272 m	HSD Engine Co Ltd - South Korea 7G80ME-C10-HPSCR	6.1	B
495	ZIM JADE IMO 9968059	7,000 TEU	2024	272 m	7G80ME-C10-GI-ERGTC	6.1	B
494	ONE RESILIENCE IMO 9952751	7,000 TEU	2024	272 m	Hanwha Engine Co Ltd - South Korea 7G80ME-C10-HPSCR	6.1	B
493	CAP SAN MALEAS IMO 9633941	9,600 TEU	2014	333 m	MAN - 7S90ME-C9	6.1	B
492	MUNDRA EXPRESS IMO 9408865	9,954 TEU	2011	350 m	Wärtsilä - 12RT-flex96C	6.1	B
500	SEASPAN AMAZON IMO 9630391	10,100 TEU	2014	337 m	MAN - 10S90ME-C9	6.1	B

Page 10 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.