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 2025. Lower is greener. Pick a segment and size class to see the greenest vessels first.

Segment rank (2025)

#1,078 of 2,221 container ships

CO₂ intensity

8.1 g CO₂/dwt·nm

vs segment average (9.88)

-18% 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

1,081 at D/E

A 310B 415C 704D 602E 479

2,510 rated vessels · 463 of the D/E set dock within 12 months

Docking pipeline — D/E vessels per quarter

'27 Q1

'27 Q2

'27 Q3

'27 Q4

112

'28 Q1

'28 Q2

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	1,485	1–3%	€80k–250k	—	vendor claim
Propeller redesign / replacement	1,440	5–10%	€400k–1,200k	—	vendor claim
Bulbous bow reprofiling	1,344	2–6%	€300k–900k	—	vendor claim
Methanol dual-fuel conversion	965	5–15%	€8,000k–20,000k	—	vendor claim
LNG dual-fuel conversion	795	15–25%	€15,000k–35,000k	—	vendor claim
Shaft generator / PTO	360	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

624

D/E vessels with at least one eligible measure

€3,295–7,790M

capex range, top measure per vessel (624 of 624 with computable scaling)

1.48–2.63 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
SEPELU · <25k	E	26y	2026	69%	Aug 2028
MSC SABRINA III · <25k	E	37y	2026	61%	Mar 2027
NILEDUTCH LION · 100-200k	E	18y	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

2,208

vessels ranked

2.88

greenest (g CO₂/dwt·nm)

8.22

segment median

#	Vessel	Size (TEU)	Built	Length	Main Engine	Carbon intensity — AER (g CO₂/dwt·nm)	Grade
1051	HMM JAKARTA IMO 9323522	6,763 TEU	2007	304 m	MAN - 12K98MC-C	7.9	C
1052	CMA CGM BETTER WAYS IMO 9950557	6,963 TEU	2023	272 m	HD Hyundai Heavy Industries Co Ltd - South Korea 7G80ME-C10-HPSCR	7.9	C
1053	LARS MAERSK IMO 9294379	4,300 TEU	2004	267 m	Doosan - 8RT FLEX 96C	7.9	C
1054	CMA CGM HARMONY IMO 9952828	7,000 TEU	2021	272 m	Hyundai Heavy Industries Co Ltd - South Korea 7G80ME-C10-HPSCR	7.9	C
1055	COSCO SHANGHAI IMO 9221097	5,618 TEU	2001	280 m	Kawasaki - 10L90MC	7.9	C
1056	MSC KRITTIKA IMO 9051507	2,394 TEU	1994	202 m	ASTILLEROS - 7 S 70 MC	8.0	C
1057	LONDON EXPRESS IMO 9143568	4,612 TEU	1998	294 m	SAMSUNG HEAVY INDUSTRIES CO., LTD. 9 K 90 MC	8.0	C
1058	MSC FABIENNE IMO 9279965	4,862 TEU	2004	294 m	Hyundai - 9 K 90 MC-C	8.0	C
1059	MAERSK LEON IMO 9526966	8,700 TEU	2012	300 m	Doosan - 9S90ME-C MK8	8.0	C
1060	HMM PLATINUM IMO 9637155	5,000 TEU	2013	255 m	Hyundai - 6RT-flex82T	8.0	C
1061	MSC JERSEY IMO 9622007	4,800 TEU	2014	250 m	MAN - 6S80ME-C9	8.0	C
1062	MSC LILY IMO 9704960	8,800 TEU	2015	300 m	MAN - 9S90ME-C9	8.0	C
1063	W KYRENIA IMO 9211494	6,802 TEU	2001	300 m	Sulzer - 12RTA96C	8.0	C
1064	ROTTERDAM IMO 9398450	9,262 TEU	2010	349 m	MAN - 12K98MC	8.0	C
1065	CMA CGM NABUCCO IMO 9299630	8,200 TEU	2006	334 m	Hyundai - 12 K98MC	8.0	C
1066	CONTI CHIVALRY IMO 9293791	8,084 TEU	2006	334 m	Sulzer - 12RTA96C	8.0	C
1067	WIKING IMO 9708382	4,771 TEU	2016	255 m	MAN - 6S80ME-C9	8.0	C
1068	SANTA CLARA MAERSK IMO 9444716	7,090 TEU	2010	300 m	Wärtsilä - 8RT-flex96C	8.0	C
1069	CMA CGM CHIWAN IMO 9224312	4,253 TEU	2001	260 m	8K90MC-C	8.0	C
1070	KOTA KAYA IMO 9307401	3,081 TEU	2005	233 m	Mitsui - 7S70MC-C	8.0	C
1071	MSC ROSHNEY V IMO 9337676	4,888 TEU	2007	294 m	MAN - 9K98ME-C	8.0	C
1072	EVER EXCEL IMO 9241322	6,323 TEU	2002	300 m	Sulzer - 12RTA84C	8.1	C
1073	KOTKA IMO 9085534	6,418 TEU	1996	318 m	Mitsui - 12K90MC	8.1	C
1074	MAERSK IDAHO IMO 9193264	4,338 TEU	2000	292 m	Hyundai - 10K90MC-C	8.1	C
1075	HMM COLOMBO IMO 9323508	6,763 TEU	2007	304 m	MAN - 12K98MC-C	8.1	C
1076	ACHELOOS IMO 9972995	2,800 TEU	2024	186 m	MAN-B&W 6S60ME-C10	8.1	C
1077	MONTE TAMARO IMO 9357949	4,000 TEU	2007	272 m	Wärtsilä - 8RTA96C	8.1	C
1078	NYK ROMULUS IMO 9416989	4,888 TEU	2010	294 m	MAN - 9K98ME-C	8.1	C
1079	MSC VIDHI IMO 9238739	5,514 TEU	2001	277 m	Doosan - 12K90MC	8.1	C
1080	SANTA INES IMO 9444845	7,114 TEU	2012	300 m	Doosan - 8RT FLEX 96C	8.1	C
1081	MSC ELA IMO 9282259	4,900 TEU	2004	294 m	HSD ENGINE CO., LTD. 9 K 90 MC	8.1	C
1082	MSC ELBE III IMO 9236688	2,524 TEU	2001	208 m	MANISES DIESEL - 7 L 70 MC	8.1	C
1083	API BHUM IMO 9292149	4,944 TEU	2004	294 m	HSD ENGINE CO., LTD. 9 K 90 MC-C	8.1	C
1084	MSC BRUNELLA IMO 9702106	8,819 TEU	2015	300 m	MAN - 9S90ME-C9	8.1	C
1085	MAERSK UTAH IMO 9305300	4,154 TEU	2006	292 m	Sulzer - 8RT-flex96C	8.1	C
1086	MSC TIANJIN IMO 9285471	8,063 TEU	2005	323 m	MAN - 12K98MC-C	8.1	C
1087	MSC JOHANNESBURG V IMO 9252242	4,200 TEU	2003	266 m	Sulzer - 9RTA84C	8.1	C
1088	NINGBO IMO 9398400	7,500 TEU	2009	334 m	MAN - 12K98MC	8.1	C
1089	MSC SAMANTHA VI IMO 9110377	5,551 TEU	1996	275 m	Hyundai - 12K90MC-C	8.1	C
1090	MSC ATLANTIC III IMO 8913447	2,668 TEU	1991	237 m	BREMER VULKAN AG SCHIFFBAU UND MASCHINENFABRIK 7 L 80 MC	8.1	C
1091	GREEN BAY IMO 9983437	2,954 TEU	2022	186 m	Yuchai Marine Power Co. Ltd. 7S60ME-C10	8.1	C
1092	HMM OAKLAND IMO 9385013	6,350 TEU	2009	293 m	MAN - 11K98MC	8.1	C
1093	JOLLY ARGENTO IMO 9467043	4,600 TEU	2010	264 m	MAN - 8K90MC-C	8.2	C
1094	MSC SUEZ IMO 8918978	2,668 TEU	1993	237 m	BREMER VULKAN AG SCHIFFBAU UND MASCHINENFABRIK 7 L 80 MC	8.2	C
1095	FORT DESAIX IMO 9400174	4,043 TEU	2010	269 m	Wärtsilä - 7RT-FLEX96C	8.2	C
1096	HMM TACOMA IMO 9385001	6,350 TEU	2009	293 m	MAN - 11K98MC	8.2	C
1097	MSC PRELUDE V IMO 9450325	4,600 TEU	2009	264 m	MAN - 8K90MC-C	8.2	C
1098	MOL PROFICIENCY IMO 9403619	6,350 TEU	2007	293 m	MAN - 11K98MC	8.2	C
1099	YM CREDIBILITY IMO 9864564	2,800 TEU	2021	210 m	MAN - 7S70ME-C	8.2	C
1100	SEASPAN OCEANIA IMO 9286009	8,468 TEU	2004	334 m	MAN - 12K98MC-C	8.2	C

Page 22 of 44 — 2,163 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 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.