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)

#1,099 of 2,221 container ships

CO₂ intensity

8.2 g CO₂/dwt·nm

vs segment average (9.9)

-17% 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

2,208

vessels ranked

2.88

greenest (g CO₂/dwt·nm)

8.26

segment median

#	Vessel	Size (TEU)	Built	Length	Main Engine	Carbon intensity — AER (g CO₂/dwt·nm)	Grade
1051	MAERSK LEON IMO 9526966	8,700 TEU	2008	300 m	Doosan - 9S90ME-C MK8	8.0	C
1052	MSC LILY IMO 9704960	8,800 TEU	2015	300 m	MAN - 9S90ME-C9	8.0	C
1053	MSC POLINA IMO 9376141	2,546 TEU	2008	209 m	Hudong Heavy Machinery - 7 RT-FLEX 68-B	8.0	C
1054	MSC JERSEY IMO 9622007	4,800 TEU	2014	250 m	MAN - 6S80ME-C9	8.0	C
1055	HMM PLATINUM IMO 9637155	5,000 TEU	2013	255 m	Hyundai - 6RT-flex82T	8.0	C
1056	ROTTERDAM IMO 9398450	10,062 TEU	2010	349 m	MAN - 12K98MC	8.0	C
1057	W KYRENIA IMO 9211494	6,802 TEU	2001	300 m	Sulzer - 12RTA96C	8.0	C
1058	CMA CGM NABUCCO IMO 9299630	8,478 TEU	2006	334 m	Hyundai - 12 K98MC	8.0	C
1059	CMA CGM CHIWAN IMO 9224312	4,253 TEU	2001	260 m	8K90MC-C	8.0	C
1060	SANTA CLARA MAERSK IMO 9444716	7,090 TEU	2010	300 m	Wärtsilä - 8RT-flex96C	8.0	C
1061	WIKING IMO 9708382	4,957 TEU	2016	255 m	MAN - 6S80ME-C9	8.0	C
1062	MSC INGRID IMO 9181651	4,500 TEU	1999	294 m	9K90MC	8.0	C
1063	CONTI CHIVALRY IMO 9293791	8,084 TEU	2006	334 m	Sulzer - 12RTA96C	8.0	C
1064	KOTA KAYA IMO 9307401	3,081 TEU	2005	233 m	Mitsui - 7S70MC-C	8.0	C
1065	MSC ROSHNEY V IMO 9337676	4,888 TEU	2007	294 m	MAN - 9K98ME-C	8.0	C
1066	EVER EXCEL IMO 9241322	6,323 TEU	2002	300 m	Sulzer - 12RTA84C	8.1	C
1067	KOTKA IMO 9085534	6,418 TEU	1996	318 m	Mitsui - 12K90MC	8.1	C
1068	HMM COLOMBO IMO 9323508	6,763 TEU	2007	304 m	MAN - 12K98MC-C	8.1	C
1069	MAERSK IDAHO IMO 9193264	4,338 TEU	2000	292 m	Hyundai - 10K90MC-C	8.1	C
1070	MONTE TAMARO IMO 9357949	4,000 TEU	2007	272 m	Wärtsilä - 8RTA96C	8.1	C
1071	ACHELOOS IMO 9972995	2,800 TEU	2022	186 m	MAN-B&W 6S60ME-C10	8.1	C
1072	MSC VIDHI IMO 9238739	5,762 TEU	2001	277 m	Doosan - 12K90MC	8.1	C
1073	SANTA INES IMO 9444845	7,114 TEU	2012	300 m	Doosan - 8RT FLEX 96C	8.1	C
1074	NYK ROMULUS IMO 9416989	4,888 TEU	2010	294 m	MAN - 9K98ME-C	8.1	C
1075	MSC ELA IMO 9282259	5,059 TEU	2004	294 m	HSD ENGINE CO., LTD. 9 K 90 MC	8.1	C
1076	MSC ELBE III IMO 9236688	2,524 TEU	2001	208 m	MANISES DIESEL - 7 L 70 MC	8.1	C
1077	API BHUM IMO 9292149	4,992 TEU	2004	294 m	HSD ENGINE CO., LTD. 9 K 90 MC-C	8.1	C
1078	MSC BRUNELLA IMO 9702106	8,819 TEU	2015	300 m	MAN - 9S90ME-C9	8.1	C
1079	MAERSK UTAH IMO 9305300	4,154 TEU	2006	292 m	Sulzer - 8RT-flex96C	8.1	C
1080	MOL PROFICIENCY IMO 9403619	6,350 TEU	2007	293 m	MAN - 11K98MC	8.1	C
1081	MSC TIANJIN IMO 9285471	8,063 TEU	2005	323 m	MAN - 12K98MC-C	8.1	C
1082	MSC JOHANNESBURG V IMO 9252242	4,200 TEU	2003	266 m	Sulzer - 9RTA84C	8.1	C
1083	NINGBO IMO 9398400	8,440 TEU	2009	334 m	MAN - 12K98MC	8.1	C
1084	MSC SAMANTHA VI IMO 9110377	5,711 TEU	1996	275 m	Hyundai - 12K90MC-C	8.1	C
1085	HMM OAKLAND IMO 9385013	6,350 TEU	2009	293 m	MAN - 11K98MC	8.1	C
1086	GREEN BAY IMO 9983437	2,954 TEU	2022	186 m	Yuchai Marine Power Co. Ltd. 7S60ME-C10	8.1	C
1087	MSC ATLANTIC III IMO 8913447	3,005 TEU	1991	237 m	BREMER VULKAN AG SCHIFFBAU UND MASCHINENFABRIK 7 L 80 MC	8.1	C
1088	JOLLY ARGENTO IMO 9467043	4,400 TEU	2010	264 m	MAN - 8K90MC-C	8.2	C
1089	MSC SUEZ IMO 8918978	3,005 TEU	1993	237 m	BREMER VULKAN AG SCHIFFBAU UND MASCHINENFABRIK 7 L 80 MC	8.2	C
1090	FORT DESAIX IMO 9400174	4,200 TEU	2010	269 m	Wärtsilä - 7RT-FLEX96C	8.2	C
1091	MSC PRELUDE V IMO 9450325	4,616 TEU	2009	264 m	MAN - 8K90MC-C	8.2	C
1092	HMM TACOMA IMO 9385001	6,350 TEU	2009	293 m	MAN - 11K98MC	8.2	C
1093	YM CREDIBILITY IMO 9864564	2,940 TEU	2018	210 m	MAN - 7S70ME-C	8.2	C
1094	SEASPAN OCEANIA IMO 9286009	8,468 TEU	2004	334 m	MAN - 12K98MC-C	8.2	C
1095	MSC LISA IMO 9281279	5,059 TEU	2004	294 m	HSD ENGINE CO., LTD. 9 K 90 MC-C	8.2	C
1096	MSC PAMIRA III IMO 9239903	2,496 TEU	2002	212 m	Sulzer - 7RTA72U-B	8.2	C
1097	MSC MATILDE V IMO 9181663	4,400 TEU	1999	294 m	MAN 9K90MC	8.2	C
1098	MSC POH LIN IMO 9279977	4,900 TEU	2004	294 m	Hyundai - 9 K 90 MC-C	8.2	C
1099	MAERSK GATESHEAD IMO 9235543	4,318 TEU	2002	292 m	Hyundai - 10K90MC-C MK5	8.2	C
1100	MAERSK MONTE OLIVIA IMO 9283198	4,000 TEU	2004	272 m	Wärtsilä - 8RTA96C	8.2	C

Page 22 of 44 — 2,163 vessels

← Prev Next →

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.