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)

#905 of 2,098 container ships

CO₂ intensity

7.8 g CO₂/dwt·nm

vs segment average (10.38)

-25% 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
901	NYK REMUS IMO 9416965	4,888 TEU	2009	294 m	MAN - 9K98ME-C	7.7	C
900	CMA CGM TIVOLI IMO 9961312	2,000 TEU	2024	204 m	Hyundai Heavy Industries Co Ltd - South Korea 6S60ME-C10-GI	7.7	C
903	MAERSK PITTSBURGH IMO 9342176	6,200 TEU	2008	300 m	Doosan - 10RT-flex96C	7.7	C
904	MSC DARIEN IMO 9243394	8,384 TEU	2003	323 m	Doosan - 12K98MC-C	7.8	C
905	CMA CGM CONGO IMO 9679892	9,448 TEU	2015	300 m	MAN - 8S90ME-C9	7.8	C
907	EXPRESS BRAZIL IMO 9443023	3,398 TEU	2010	222 m	Hyundai - 7RT-FLEX82C	7.8	C
906	MAERSK KARACHI IMO 9162215	6,690 TEU	1998	300 m	ISHIKAWAJIMA - 12RTA96C	7.8	C
908	PANDA 007 IMO 9280598	5,762 TEU	2004	277 m	Hyundai - 10 K 98 MC-C	7.8	C
909	ONE HANNOVER IMO 9302138	8,212 TEU	2006	336 m	MAN - 12K98ME	7.8	C
910	CONTI COURAGE IMO 9293789	8,084 TEU	2005	334 m	Doosan - 12 RTA 96 C-B	7.8	C
911	MSC RUBY IMO 9502960	13,100 TEU	2013	366 m	Wärtsilä - 12RT-flex96C	7.8	C
912	CMA CGM MOZART IMO 9280615	5,770 TEU	2004	277 m	Hyundai - 10 K 98 MC-C	7.8	C
914	MSC JOY IMO 9039250	2,021 TEU	1992	202 m	Sulzer - 6RTA76	7.8	C
913	MSC DAISY IMO 9295165	4,992 TEU	2005	294 m	Doosan - 9 K90MC-C	7.8	C
915	CMA CGM MERMAID IMO 9961283	2,000 TEU	2024	204 m	Hyundai Heavy Industries Co Ltd - South Korea 6S60ME-C10-GI	7.8	C
916	CMA CGM CARL ANTOINE IMO 9729087	10,926 TEU	2017	300 m	CSSC - 9S90ME-C9	7.8	C
917	MSC DORINE IMO 9301328	5,089 TEU	2005	294 m	Hyundai - 9 K 90 MC-C	7.8	C
922	MSC ATHOS IMO 9618317	8,827 TEU	2013	300 m	MAN - 9S90ME-C8	7.8	C
921	MAERSK LOTA IMO 9526954	8,700 TEU	2008	300 m	Doosan - 9S90ME-C	7.8	C
920	ONE MARVEL IMO 9475612	6,724 TEU	2010	302 m	Mitsubishi - 10RT-flex96C	7.8	C
919	MSC YORK VII IMO 9196838	6,420 TEU	2000	304 m	Hyundai - 10 K 98 MC-C	7.8	C
918	ZIM CHINA IMO 9389382	4,275 TEU	2008	261 m	Wärtsilä - 7RT-FLEX96C	7.8	C
923	CMA CGM ALTAMIRA IMO 9961350	2,000 TEU	2024	204 m	6S60ME-C10-GI	7.8	C
924	MAERSK GATESHEAD IMO 9235543	4,318 TEU	2002	292 m	Hyundai - 10K90MC-C MK5	7.8	C
925	NILEDUTCH LION IMO 9337456	8,626 TEU	2005	333 m	Mitsui - MITSUI- MAN B&W 12K98MC	7.8	C
926	FOS EXPRESS IMO 9348699	5,100 TEU	2008	294 m	MAN - 9K90MC-C	7.8	C
929	CMA CGM JACQUES JOSEPH IMO 9729104	10,926 TEU	2017	300 m	CSSC - 9S90ME-C9	7.9	C
928	MSC FABIENNE IMO 9279965	4,900 TEU	2004	294 m	Hyundai - 9 K 90 MC-C	7.9	C
927	HYUNDAI SHANGHAI IMO 9305647	6,800 TEU	2006	304 m	MAN - 12K98MC-C	7.9	C
930	ATLANTICA POWER IMO 9467055	4,616 TEU	2010	264 m	MAN - 8K90MC-C	7.9	C
932	CMA CGM PUERTO ANTIOQUIA IMO 9275050	2,556 TEU	2004	210 m	Hyundai - 7 RTA 72 U-B	7.9	C
931	MSC ATHENS IMO 9618305	8,827 TEU	2013	300 m	Hyundai - 9S90ME-C8.2	7.9	C
934	VENTO DI GRECALE IMO 9985045	24,440	2024	172 m	MAN-B&W 6S60ME-C10	7.9	C
933	ONE HARBOUR IMO 9302152	8,212 TEU	2007	336 m	MAN - 12K98ME	7.9	C
935	SANTA CRUZ IMO 9444742	7,090 TEU	2011	300 m	Doosan - 8RT FLEX 96C	7.9	C
937	MSC JERSEY IMO 9622007	4,800 TEU	2014	250 m	MAN - 6S80ME-C9	7.9	C
936	MAERSK STRALSUND IMO 9303522	8,400 TEU	2005	332 m	MAN - 12K98ME-C	7.9	C
938	CMA CGM CHOPIN IMO 9280603	5,770 TEU	2004	277 m	Hyundai - 10 K 98 MC-C	7.9	C
939	VILNIA MAERSK IMO 9778533	3,700 TEU	2019	200 m	MAN - 6G60ME-C9	7.9	C
942	MSC ROSARIA IMO 9320453	4,870 TEU	2007	275 m	MAN - 7K98MC-C	7.9	C
943	SEASPAN OCEANIA IMO 9286009	8,468 TEU	2004	334 m	MAN - 12K98MC-C	7.9	C
941	HYUNDAI PRESTIGE IMO 9625528	5,023 TEU	2013	255 m	Wärtsilä - 6RT-flex82T	7.9	C
944	ONE HUMBER IMO 9302140	8,212 TEU	2006	336 m	MAN - 12K98ME	7.9	C
940	NYK RIGEL IMO 9416977	4,888 TEU	2009	294 m	MAN - 9K98ME-C	7.9	C
947	XIN LIAN YUN GANG IMO 9234355	5,668 TEU	2003	280 m	MAN - 12K90MC-C	7.9	C
946	CHENNAI EXPRESS IMO 9306158	6,539 TEU	2006	304 m	MAN - 10K98ME	7.9	C
945	KALAHARI EXPRESS IMO 9400095	6,300 TEU	2010	306 m	Wärtsilä - 10RT-flex96C	7.9	C
950	CMA CGM BIANCA IMO 9436367	8,533 TEU	2011	335 m	Doosan - 12K98MC-C	8.0	C
949	MSC SARYA III IMO 9241451	2,478 TEU	2003	207 m	Wärtsilä - 7 RTA 72 U-B	8.0	C
948	SANTA ISABEL IMO 9444728	7,090 TEU	2010	300 m	Wärtsilä - 8RT-flex96C	8.0	C

Page 19 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.