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)

#1,187 of 2,098 container ships

CO₂ intensity

9.4 g CO₂/dwt·nm

vs segment average (10.39)

-10% 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
1151	ITAL WAY IMO 9950789	2,300 TEU	2021	172 m	MAN-B&W 6G60ME-C10	9.1	C
1152	IRENES RULE IMO 9953561	2,800 TEU	2021	186 m	HD Hyundai Heavy Industries Co Ltd - South Korea 6S60ME-C10-HPSCR	9.1	C
1153	MSC CORNELIA IMO 9426817	5,100 TEU	2010	294 m	CSSC - 8K98MC	9.1	C
1154	MAERSK MONTANA IMO 9305312	4,300 TEU	2006	292 m	Hyundai - 10K90MC-C	9.1	C
1155	MSC KATYAYNI IMO 9110389	5,711 TEU	1996	275 m	MAN - 12K90MC-C	9.1	C
1156	MSC ROSSELLA III IMO 9320025	2,700 TEU	2006	222 m	MAN - 7L70MC-C	9.1	C
1157	MSC HUSUM III IMO 9326835	2,556 TEU	2006	210 m	Hyundai - 7 RTA 72 U-B	9.1	C
1158	SPIRIT OF SINGAPORE IMO 9362396	3,752 TEU	2007	254 m	MAN - 8S70MC-C8	9.2	C
1159	MSC LEO VI IMO 9229312	6,178 TEU	2002	300 m	Sulzer - 12RTA96C	9.2	C
1160	MAERSK BOGOR IMO 9394882	3,100 TEU	2009	223 m	Hyundai - 7K80ME-C	9.2	C
1161	CMA CGM JAMAICA IMO 9326770	4,298 TEU	2006	264 m	MAN - 8K90MC-C	9.2	C
1162	BERNHARD SCHULTE IMO 9484546	4,616 TEU	2010	264 m	MAN - 8K90MC-C	9.2	C
1163	ONE ATLAS IMO 9290115	4,253 TEU	2005	260 m	8K90MC-C	9.2	C
1164	LIVERPOOL EXPRESS IMO 9232565	4,115 TEU	2002	281 m	Sulzer - 9RTA96C	9.2	C
1165	CAPE SKAGEN IMO 9969857	2,713 TEU	2023	189 m	7S60ME-C10-HPSCR	9.2	C
1166	BROOKLYN BRIDGE IMO 9458999	4,432 TEU	2010	267 m	Wärtsilä - 10RT-flex82C	9.2	C
1167	LANGENESS IMO 9944778	1,781 TEU	2023	172 m	MAN - 6S60ME-C10	9.2	C
1168	LADY JANE IMO 9297474	5,047 TEU	2005	295 m	Sulzer - 8RTA96C	9.2	C
1169	MAERSK BATUR IMO 9402029	3,100 TEU	2009	223 m	Hyundai - 7K80ME-C	9.2	C
1170	MSC MARIA CLARA IMO 9287900	5,060 TEU	2004	294 m	Hyundai - 9 K 90 MC-C	9.3	C
1171	CMA CGM SALAMANQUE IMO 9961348	2,000 TEU	2024	204 m	6S60ME-C10-GI	9.3	C
1172	AMERICA IMO 9285990	8,468 TEU	2004	334 m	Doosan - 12K98MC-C	9.3	C
1173	PORTO CHELI IMO 9221839	6,712 TEU	2001	300 m	Hyundai - 12 K98MC-C	9.3	C
1174	NORTHERN JUBILEE IMO 9450337	8,814 TEU	2009	334 m	MAN - 10K98ME-C	9.3	C
1175	CHIQUITA FARMER IMO 9336189	2,546 TEU	2007	209 m	Hudong Heavy Machinery - 6 K80ME-C	9.3	C
1176	MSC RITA V IMO 9313929	4,196 TEU	2006	294 m	Sulzer - 12RT-flex96C	9.3	C
1177	MELINA IMO 9401075	4,253 TEU	2009	260 m	MAN - 8K90MC-C	9.3	C
1178	MIMMI SCHULTE IMO 9743473	2,340 TEU	2017	189 m	Doosan - 6G60ME-C9	9.3	C
1179	MERKUR ARCHIPELAGO IMO 9456977	4,255 TEU	2009	262 m	Hyundai - 8RTA82C	9.3	C
1180	MSC ANDRIANA III IMO 9222120	2,550 TEU	2001	210 m	Sulzer - 7RTA72U	9.3	C
1181	MATTHEW SCHULTE IMO 9743497	2,340 TEU	2019	189 m	Doosan - 6G60ME-C9	9.3	C
1182	MAERSK CAP CARMEL IMO 9273923	2,524 TEU	2003	208 m	IZAR CONSTRUCCIONES NAVALES, S.A. PROPULSION Y ENERGIA MANISES 7 L 70 MC	9.3	C
1183	DYROS IMO 9380403	4,506 TEU	2005	260 m	MAN - 8K90MC-C	9.3	C
1184	VENTO DI BORA IMO 9950064	1,900 TEU	2023	172 m	MAN - 6S60ME-C10	9.3	C
1185	CMA CGM AFRICA TWO IMO 9451927	3,718 TEU	2010	228 m	Wärtsilä - 7RT-flex82C	9.3	C
1186	MAERSK NAIROBI IMO 9356165	2,478 TEU	2009	211 m	MAN - 7L70ME-C	9.3	C
1187	MSC VERACRUZ IMO 9287924	5,060 TEU	2005	294 m	Hyundai - 9 K 90 MC-C	9.4	C
1188	ULSAN IMO 9243306	4,132 TEU	2002	258 m	Hyundai - 9 RTA 84 C	9.4	C
1189	CHARLESTON IMO 9461506	8,586 TEU	2011	336 m	Hyundai - 12RT-flex96C	9.4	C
1190	MSC VIDISHA R. IMO 9227326	4,112 TEU	2002	281 m	Sulzer - 9RTA96C	9.4	C
1191	ELENI T IMO 9397585	4,253 TEU	2009	260 m	MAN - 8K90MC-C	9.4	C
1192	ANL WYONG IMO 9334155	4,500 TEU	2008	260 m	MAN - 8K90MC-C	9.4	C
1193	JPO LIBRA IMO 9297840	4,132 TEU	2005	264 m	Hyundai - 9 K 90 MC-C	9.4	C
1194	JPO VENUS IMO 9351608	4,254 TEU	2010	265 m	MAN - 8K90MC-C	9.4	C
1195	DIMITRA C IMO 9250995	4,924 TEU	2002	294 m	Sulzer - 11RTA96C	9.4	C
1196	MSC TRACY V IMO 9295177	4,900 TEU	2005	294 m	Doosan - 9 K90MC-C	9.4	C
1197	JADRANA IMO 9619385	4,957 TEU	2014	255 m	MAN - 6S80ME-C9	9.4	C
1198	GH MAESTRO IMO 9449118	3,635 TEU	2012	239 m	MAN - 7K90MC-C	9.4	C
1199	IONIKOS IMO 9397614	4,360 TEU	2009	260 m	MAN - 8K90MC-C	9.4	C
1200	BF HAMBURG IMO 9332860	6,350 TEU	2009	293 m	MAN - 11K98MC	9.4	C

Page 24 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.