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)

#863 of 2,098 container ships

CO₂ intensity

7.6 g CO₂/dwt·nm

vs segment average (10.39)

-27% 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

1,080 at D/E

A 313B 411C 706D 598E 482

2,510 rated vessels · 556 of the D/E set dock within 12 months

Docking pipeline — D/E vessels per quarter

102

'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	1,642	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	353	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
MSC SABRINA III · <25k	E	37y	2026	61%	Mar 2027
C LION · 100-200k	E	21y	2026	59%	Feb 2028

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
853	W KLAIPEDA IMO 9211482	6,802 TEU	2001	300 m	HHI - 12RTA96C	7.5	C
852	CMA CGM RIGOLETTO IMO 9299654	9,415 TEU	2006	349 m	Hyundai - 12 K98MC	7.5	C
851	MSC SARISKA V IMO 8715857	4,814 TEU	1990	294 m	Mitsui - 12K90MC	7.5	C
854	MSC MANDY III IMO 8918966	3,005 TEU	1993	237 m	BREMER VULKAN AG SCHIFFBAU UND MASCHINENFABRIK 7 L 80 MC	7.5	C
855	MAERSK MONTE LINZOR IMO 9283186	4,000 TEU	2004	272 m	Wärtsilä - 8RTA96C	7.5	C
858	LEONIDAS Z IMO 9963528	2,800 TEU	2024	186 m	Hyundai - 6S60ME-C10	7.6	C
857	BELITA IMO 9318060	8,533 TEU	2006	334 m	MAN - 12K98MC	7.6	C
856	HERMANN SCHULTE IMO 9535187	5,605 TEU	2012	275 m	MAN - 8K98ME	7.6	C
859	MSC CHIARA X IMO 9198587	6,600 TEU	2000	347 m	Hitachi - 12K90MC	7.6	C
860	SEASPAN EMISSARY IMO 9407158	5,041 TEU	2009	294 m	Wärtsilä - 8RTA96C	7.6	C
861	MSC POH LIN IMO 9279977	4,900 TEU	2004	294 m	Hyundai - 9 K 90 MC-C	7.6	C
862	ROB IMO 9236652	2,452 TEU	2001	200 m	MAN - 7L70MC	7.6	C
864	BARCELONA EXPRESS IMO 9626053	3,832 TEU	2014	228 m	Wärtsilä - 7RT-flex82C	7.6	C
863	OCEAN CASTLE IMO 9315537	27,779	2005	185 m	Hudong Heavy Machinery - 6S46MC-C	7.6	C
866	SAN FRANCISCO IMO 9225615	6,732 TEU	2001	300 m	Hyundai - 10 K 98 MC-C	7.6	C
865	EVER STRONG IMO 9300441	7,024 TEU	2003	300 m	Mitsubishi - 10RTA96C	7.6	C
867	MSC LORETTA IMO 9230490	6,402 TEU	2002	304 m	Hyundai - 10 K 98 MC-C	7.6	C
868	NYK DEMETER IMO 9337664	4,888 TEU	2007	294 m	MAN - 9K98ME-C	7.6	C
869	TIANJIN IMO 9398462	10,062 TEU	2010	349 m	MAN - 12K98MC	7.6	C
871	KOI IMO 9461489	8,600 TEU	2011	335 m	Wärtsilä - 12RT-flex96C	7.6	C
870	MERVE A IMO 9389681	4,253 TEU	2008	260 m	MAN - 8K90MC-C	7.6	C
874	MAERSK GUATEMALA IMO 9713375	10,100 TEU	2015	337 m	MAN - 10S90ME-C9	7.6	C
873	OOCL ST. LAWRENCE IMO 9290414	5,047 TEU	2005	295 m	Sulzer - 8RTA96C	7.6	C
872	MAERSK KENSINGTON IMO 9333010	6,200 TEU	2007	299 m	Doosan - 10RT-flex96C	7.6	C
876	NYK VIRGO IMO 9312810	9,012 TEU	2007	338 m	MAN - 12K98ME	7.6	C
875	MEDITERRANEAN EXPRESS IMO 9622019	4,800 TEU	2014	250 m	MAN - 6S80ME-C9	7.6	C
877	KYOTO EXPRESS IMO 9295256	8,749 TEU	2005	335 m	Hyundai - 12 K 98 ME	7.6	C
878	VENTA MAERSK IMO 9775763	3,700 TEU	2018	200 m	STX - 6G70ME-C8	7.6	C
881	MSC RANIA IMO 9309447	8,401 TEU	2005	332 m	Doosan - 12K98MC-C	7.7	C
880	MSC ANS IMO 9282261	5,059 TEU	2004	294 m	HSD ENGINE CO., LTD. 9 K 90 MC-C	7.7	C
879	MSC JORDAN III IMO 8918980	3,005 TEU	1993	237 m	BREMER VULKAN AG SCHIFFBAU UND MASCHINENFABRIK 7 L 80 MC	7.7	C
882	MAERSK NAKURU IMO 9356103	2,478 TEU	2008	210 m	Doosan - 7L70ME-C	7.7	C
883	FRANKFURT EXPRESS IMO 9450442	8,749 TEU	2010	335 m	MAN - 10K98ME	7.7	C
886	MSC TIANJIN IMO 9285471	8,063 TEU	2005	323 m	MAN - 12K98MC-C	7.7	C
885	CMA CGM ALCAZAR IMO 9335197	5,085 TEU	2007	294 m	MAN - 9K90MC-C	7.7	C
884	MOMBASA EXPRESS IMO 9495777	4,620 TEU	2013	260 m	MAN - 8K80ME-C	7.7	C
888	CMA CGM ESTELLE IMO 9729116	10,926 TEU	2018	300 m	CSSC - 9S90ME-C9	7.7	C
887	MSC SORAYA IMO 9372494	5,800 TEU	2008	277 m	MAN - 9K98MC	7.7	C
892	CMA CGM TITUS IMO 9450636	8,500 TEU	2010	334 m	MAN - 12K98ME-C	7.7	C
891	WIELAND IMO 9654464	4,957 TEU	2014	255 m	MAN - 6S80ME-C9	7.7	C
890	MSC KRYSTAL IMO 9372470	5,800 TEU	2008	277 m	MAN - 12 K 90 MC	7.7	C
889	MSC LISA IMO 9281279	5,059 TEU	2004	294 m	HSD ENGINE CO., LTD. 9 K 90 MC-C	7.7	C
893	MSC BREMEN IMO 9369734	5,029 TEU	2007	294 m	Wärtsilä - 8RT-flex96C	7.7	C
895	GSL SUSAN IMO 9349617	4,363 TEU	2008	264 m	MAN - 8K90MC-C	7.7	C
894	TSINGTAO EXPRESS IMO 9320702	8,749 TEU	2007	335 m	MAN - 12K98ME	7.7	C
897	MSC LAURA IMO 9225665	6,732 TEU	2002	300 m	HSD ENGINE CO., LTD. 10 K 98 MC-C	7.7	C
896	GSL CHATEAU D'IF IMO 9335202	5,085 TEU	2007	294 m	MAN - 9K90MC-C	7.7	C
900	ZIM PELICAN IMO 9960526	5,300 TEU	2024	238 m	MAN-B&W 6G80ME-C10	7.7	C
899	CMA CGM ROSSINI IMO 9280639	5,770 TEU	2004	277 m	Hyundai - 10 K 98 MC-C	7.7	C
898	CMA CGM TIVOLI IMO 9961312	2,000 TEU	2024	204 m	Hyundai Heavy Industries Co Ltd - South Korea 6S60ME-C10-GI	7.7	C

Page 18 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.