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)

#1,331 of 2,098 container ships

CO₂ intensity

10.4 g CO₂/dwt·nm

vs segment average (10.38)

+0% 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 · 551 of the D/E set dock within 12 months

Docking pipeline — D/E vessels per quarter

101

'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	1,640	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%	Dec 2027
MSC ANNAMARIA · <25k	E	1y	2026	72%	Oct 2027
SEPELU · <25k	E	26y	2026	69%	Jul 2028
C LION · 100-200k	E	21y	2026	59%	Feb 2028
HAMBURG TRADER · <25k	E	21y	2026	55%	Jul 2026

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
1301	MAERSK IZMIR IMO 9348168	3,364 TEU	2008	232 m	HHI - 8K80 E-C MK6	10.2	D
1302	NAVIOS DOMINO IMO 9478494	4,250 TEU	2008	261 m	MAN - 8K90MC-C	10.2	D
1303	MSC DAR ES SALAAM III IMO 9158525	2,546 TEU	1999	207 m	DIESELMOTORENWERK ROSTOCK GMBH 7 L 70 MC	10.2	D
1304	MSC SAGITTA III IMO 9401166	3,426 TEU	2010	228 m	MAN - 8K80 MC-C	10.3	D
1305	CMA CGM CEBU IMO 9362736	1,794 TEU	2008	180 m	MAN - 7S60MC-C	10.3	D
1306	MSC TAMARA IMO 9351579	4,254 TEU	2008	265 m	MAN - 8K90MC-C	10.3	D
1307	INDEPENDENT QUEST IMO 9246700	3,091 TEU	2005	220 m	H. CEGIELSKI-POZNAN S.A. 7 K 80 MC-C	10.3	D
1308	DUBLIN EXPRESS IMO 9232577	4,115 TEU	2002	281 m	Sulzer - 9RTA96C	10.3	D
1309	GSL LALO IMO 9330525	2,824 TEU	2006	222 m	Hyundai - 7K80MC-C	10.3	D
1310	ECO PONENTE IMO 9985966	13,661	2024	148 m	MAN-B&W 5S50ME-C9-LGIM	10.3	D
1311	MAERSK PUELO IMO 9306172	6,539 TEU	2006	304 m	Hyundai - 10 K98ME-C	10.3	D
1312	CINDY IMO 9304734	2,490 TEU	2004	212 m	Sulzer - 7RTA72U-B	10.3	D
1313	MAERSK BAYETE IMO 9355355	3,078 TEU	2009	223 m	Hyundai - 8K80ME-C	10.3	D
1314	MAERSK NACALA IMO 9459424	3,649 TEU	2014	240 m	MAN - 7K90MC-C	10.3	D
1315	CMA CGM AFRICA THREE IMO 9451939	3,718 TEU	2010	228 m	Wärtsilä - 7RT-flex82C	10.3	D
1316	GSL ALICE IMO 9509164	3,400 TEU	2014	228 m	Wärtsilä - 8RT-flex68D	10.3	D
1317	CMA CGM CONSTANZA IMO 9471202	4,250 TEU	2010	261 m	MAN - 8K90MC-C	10.3	D
1318	MAERSK BATAM IMO 9355331	3,194 TEU	2008	224 m	Hyundai - 8K80ME-CMK6	10.3	D
1319	INDEPENDENT FUTURE IMO 9246712	3,091 TEU	2005	220 m	MAN - 7K80MC-C	10.4	D
1320	MAERSK BRANI IMO 9409352	3,100 TEU	2010	223 m	Hyundai - 7K80ME-C	10.4	D
1321	ELBSPIRIT IMO 9372860	3,426 TEU	2008	229 m	Hitachi - 8 K80MC-C	10.4	D
1322	EF OLIVIA IMO 9252735	3,091 TEU	2006	220 m	MAN - 7K80MC-C	10.4	D
1323	CMA CGM OSAKA IMO 9400291	4,250 TEU	2008	260 m	MAN - 8K90MC-C	10.4	D
1324	BSG BONAIRE IMO 9303766	3,398 TEU	2006	222 m	MAN - 8K80 MC-C	10.4	D
1325	RDO LIBERTY IMO 9631113	3,614 TEU	2013	228 m	MAN - 7S70ME-C	10.4	D
1326	MAERSK INCHEON IMO 9329629	3,534 TEU	2007	231 m	Hyundai - 7 K 90 MC-C	10.4	D
1327	SPARTEL TRADER IMO 9243203	3,237 TEU	2000	243 m	HSD ENGINE CO. LTD. ML-1120	10.4	D
1328	GREEN POLE IMO 9866005	1,800 TEU	2020	172 m	MAN - 6S60ME-C10	10.4	D
1329	XIN CHONG QING IMO 9262118	4,051 TEU	2003	263 m	Mitsui - 8K90MC-C	10.4	D
1330	CAPE QUEST IMO 9734159	2,210 TEU	2017	18 m	Hudong Heavy Machinery - 6S60ME-C8	10.4	D
1331	X-PRESS KAVERI IMO 9470765	1,577 TEU	2005	172 m	Mitsui - 7S60MC-C	10.4	D
1332	XIN NAN TONG IMO 9262132	4,050 TEU	2003	263 m	MAN - 8K90MC-C	10.4	D
1333	MAERSK WAKAYAMA IMO 9550357	1,577 TEU	2010	172 m	Mitsui - 7S60MC-C	10.4	D
1334	MAERSK BRATAN IMO 9394894	3,100 TEU	2009	223 m	Hyundai - 7K80ME-C	10.5	D
1335	MSC TAMPA IMO 9317925	5,041 TEU	2006	294 m	MAN - 8K98ME	10.5	D
1336	NORDAMELIA IMO 9724958	2,506 TEU	2017	195 m	Hudong Heavy Machinery - 6G60ME-C9	10.5	D
1337	ITAL WIT IMO 9950791	2,300 TEU	2021	172 m	MAN-B&W 6G60ME-C10	10.5	D
1338	LITTLE EMMA IMO 9980356	1,800 TEU	2015	172 m	MAN-B&W 6S60ME-C10	10.5	D
1339	APL FLORIDA IMO 9350032	6,350 TEU	2008	293 m	MAN - 11K98MC	10.5	D
1340	EM KEA IMO 9334351	3,091 TEU	2007	220 m	MAN - 7K80MC-C	10.5	D
1341	CAPE MALE IMO 9440150	2,758 TEU	2009	213 m	Hudong Heavy Machinery - 8RT-FLEX68D	10.5	D
1342	HMM CEBU IMO 9312418	2,478 TEU	2005	207 m	Sulzer - 7RTA72U-B	10.5	D
1343	CMA CGM AFRICA ONE IMO 9451915	3,718 TEU	2010	228 m	Wärtsilä - 7RT-flex82C	10.5	D
1344	MSC HELENA III IMO 9219393	3,091 TEU	2003	220 m	MAN - 7K80MC-C	10.5	D
1345	ELIZABETH IMO 9246346	2,490 TEU	2003	212 m	Sulzer - 7RTA72U-B	10.5	D
1346	CHIQUITA MERCHANT IMO 9339583	2,500 TEU	2007	209 m	Hudong Heavy Machinery - 6 K80ME-C	10.5	D
1347	AS CYPRIA IMO 9315812	2,824 TEU	2003	222 m	Hyundai - 7K80MC-C	10.5	D
1348	MAERSK NORTHWOOD IMO 9222118	2,550 TEU	2001	210 m	Hyundai - 7 RTA 72 U-B	10.5	D
1349	MSC LEVINA III IMO 9330513	2,824 TEU	2006	222 m	MAN - 7K80MC-C	10.5	D
1350	PORTSMOUTH IMO 9302437	2,478 TEU	2004	208 m	Hitachi - 7 L70MC-C	10.5	D

Page 27 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.