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)

#1,456 of 2,221 container ships

CO₂ intensity

10.3 g CO₂/dwt·nm

vs segment average (9.9)

+4% higher

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
1451	ITAL BONNY IMO 9786970	2,926 TEU	2015	212 m	Hitachi - 8S70ME-C8	10.3	D
1452	MED SAMSUN IMO 9225794	2,226 TEU	2003	196 m	MAN - 8S70MC-C	10.3	D
1453	MSC MOSS III IMO 9445916	2,758 TEU	2011	213 m	Hudong Heavy Machinery - 8RT-FLEX68D	10.3	D
1454	JPO VENUS IMO 9351608	4,254 TEU	2010	265 m	MAN - 8K90MC-C	10.4	D
1455	WANDA A IMO 9415947	1,604 TEU	2009	184 m	MAN - 8S50MC-C	10.4	D
1456	CMA CGM LAPIS IMO 9386495	4,360 TEU	2009	260 m	MAN - 8K90MC-C	10.4	D
1457	MSC SYDNEY VI IMO 9200677	5,618 TEU	1999	279 m	Sulzer - 10RTA96C	10.4	D
1458	CMA CGM SAVANNAH IMO 9348431	4,294 TEU	2008	264 m	MAN - 8K90MC-C	10.4	D
1459	AS CYPRIA IMO 9315812	2,824 TEU	2003	222 m	Hyundai - 7K80MC-C	10.4	D
1460	NAVIOS VERMILION IMO 9324837	4,250 TEU	2007	260 m	MAN - 8K90MC-C	10.4	D
1461	MONTPELLIER IMO 9314973	2,824 TEU	2006	222 m	Hyundai - 7K80MC-C	10.4	D
1462	NEOKASTRO IMO 9400215	4,043 TEU	2011	269 m	Wärtsilä - 7RT-FLEX96C	10.4	D
1463	MSC SALINA III IMO 9440150	2,758 TEU	2009	213 m	Hudong Heavy Machinery - 8RT-FLEX68D	10.4	D
1464	XIN CHONG QING IMO 9262118	4,051 TEU	2003	263 m	Mitsui - 8K90MC-C	10.4	D
1465	MSC JENNY II IMO 9000742	2,045 TEU	1995	200 m	Sulzer - 6RTA76	10.5	D
1466	CMA CGM TARRAGONA IMO 9471214	4,250 TEU	2010	261 m	MAN - 8K90MC-C	10.5	D
1467	MSC VIDISHA R. IMO 9227326	4,112 TEU	2002	281 m	Sulzer - 9RTA96C	10.5	D
1468	CHANCE IMO 9939890	1,868 TEU	2024	172 m	Hudong Heavy Machinery - 6RT-flex58T-E	10.5	D
1469	CMA CGM LOUGA IMO 9745550	2,487 TEU	2018	195 m	MAN - 6G60ME-C9	10.5	D
1470	CMA CGM WHITE IMO 9756092	2,257 TEU	2016	185 m	Hudong Heavy Machinery - MAN B&W 6G60ME-C9.5	10.5	D
1471	MAERSK JALAN IMO 9294161	2,824 TEU	2005	222 m	Hyundai - 7K80MC-C	10.5	D
1472	INDEPENDENT HORIZON IMO 9334375	3,091 TEU	2008	220 m	MAN - 7K80MC-C	10.5	D
1473	MSC TAMARA IMO 9351579	4,254 TEU	2008	265 m	MAN - 8K90MC-C	10.5	D
1474	INDEPENDENT QUEST IMO 9246700	3,091 TEU	2005	220 m	H. CEGIELSKI-POZNAN S.A. 7 K 80 MC-C	10.6	D
1475	MSC VAISHNAVI R. IMO 9227340	4,112 TEU	2002	281 m	Sulzer - 9RTA96C	10.6	D
1476	MSC ZLATA R. IMO 9227314	4,112 TEU	2002	281 m	Sulzer - 9RTA96C	10.6	D
1477	AS CONSTANTINA IMO 9308390	2,741 TEU	2003	222 m	MAN - 7L70MC-C	10.6	D
1478	MSC PORTO III IMO 9299020	2,478 TEU	2004	208 m	Hitachi - 7 L70MC-C	10.6	D
1479	VANCOUVER STAR IMO 9322334	4,225 TEU	2007	261 m	MAN - 8K90MC-C	10.6	D
1480	IZMIT EXPRESS IMO 9740665	2,586 TEU	2017	186 m	HHM Shangchuan Diesel 6G60ME-C9	10.6	D
1481	MAERSK NEWBURY IMO 9231470	2,550 TEU	2001	210 m	Sulzer - 7RTA72U	10.7	D
1482	RIO GRANDE EXPRESS IMO 9301823	4,248 TEU	2006	260 m	MAN - 8K90MC-C	10.7	D
1483	MSC CAGLIARI IV IMO 9318187	3,853 TEU	2007	261 m	MAN - 8K90MC-C	10.7	D
1484	CMA CGM PARANAGUA IMO 9246683	3,091 TEU	2005	220 m	MAN - 7K80MC-C	10.7	D
1485	ADRASTOS IMO 9951185	1,800 TEU	2021	172 m	MAN-B&W 6S60ME-C10	10.7	D
1486	BERNHARD SCHULTE IMO 9484546	4,616 TEU	2010	264 m	MAN - 8K90MC-C	10.7	D
1487	CMA CGM ABU DHABI IMO 9802499	2,506 TEU	2018	195 m	Hudong Heavy Machinery - 6G60ME-C9	10.7	D
1488	MSC NISHA V IMO 9326768	4,298 TEU	2006	264 m	MAN - 8K90MC-C	10.7	D
1489	CMA CGM CONSTANZA IMO 9471202	4,250 TEU	2010	261 m	MAN - 8K90MC-C	10.7	D
1490	RDO LIBERTY IMO 9631113	3,614 TEU	2013	228 m	MAN - 7S70ME-C	10.7	D
1491	CMA CGM ISKENDERUN IMO 9321902	3,586 TEU	2007	247 m	STX - 9 K80MC-C	10.7	D
1492	LIVERPOOL EXPRESS IMO 9232565	4,115 TEU	2002	281 m	Sulzer - 9RTA96C	10.7	D
1493	XIN NAN TONG IMO 9262132	4,050 TEU	2003	263 m	MAN - 8K90MC-C	10.7	D
1494	CMA CGM JAMAICA IMO 9326770	4,298 TEU	2006	264 m	MAN - 8K90MC-C	10.7	D
1495	MSC GIADA III IMO 9232773	2,732 TEU	2002	211 m	MAN - 7S70MC-C	10.8	D
1496	MSC RABAT IV IMO 9329643	3,534 TEU	2007	231 m	Hyundai - 7 K 90 MC-C	10.8	D
1497	MAERSK NEWARK IMO 9402615	2,546 TEU	2008	209 m	MAN - 6K80ME-C	10.8	D
1498	KASSIAKOS IMO 9386471	4,300 TEU	2009	259 m	MAN - 8K90MC-C	10.8	D
1499	MSC MARTA IMO 9295385	5,600 TEU	2005	275 m	Hyundai - 10 K 98 MC-C	10.8	D
1500	MSC LEVINA III IMO 9330513	2,824 TEU	2006	222 m	MAN - 7K80MC-C	10.8	D

Page 30 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.