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)

#1,548 of 2,098 container ships

CO₂ intensity

12.5 g CO₂/dwt·nm

vs segment average (10.38)

+20% 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

1,081 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

2,076

vessels ranked

2.25

greenest (g CO₂/dwt·nm)

8.4

segment median

#	Vessel	Size (TEU)	Built	Length	Main Engine	Carbon intensity — AER (g CO₂/dwt·nm)	Grade
1501	ESCAPE IMO 9491501	1,349 TEU	2011	168 m	Wärtsilä - 6RT-FLEX60C-B	12.1	D
1502	KUMASI IMO 9220859	2,226 TEU	2001	196 m	Hyundai - 8 S 70 MC	12.1	D
1503	CMA CGM ORANGE IMO 9690092	2,259 TEU	2016	185 m	Doosan - 6G60ME-C9	12.2	D
1504	MSC LEA II IMO 9162643	1,733 TEU	2000	217 m	Wärtsilä - 16 ZAV 40 S	12.2	D
1505	SONGA WOLF IMO 9373498	1,732 TEU	2007	177 m	Hudong Heavy Machinery - 7 S60MC-C MK8	12.2	D
1506	CMA CGM LEBU IMO 9443463	4,250 TEU	2010	261 m	MAN - 8K90MC-C	12.2	D
1507	SC HOUSTON IMO 9445904	2,758 TEU	2010	212 m	Wärtsilä - 8RT-flex68	12.2	D
1508	TEOMAN A IMO 9226504	2,452 TEU	2001	200 m	Hyundai - 7 L 70 MC	12.3	D
1509	AS SAVANNA IMO 9387451	1,713 TEU	2009	175 m	MAN - 7S60MC-C	12.3	D
1510	MERATUS JAYAWIJAYA IMO 9305881	2,474 TEU	2005	207 m	HSD ENGINE CO., LTD. 7 L 70 MC	12.3	D
1511	MSC NIKOLETA II IMO 9232644	1,730 TEU	2002	184 m	Sulzer - 6 RTA 62 U	12.3	D
1512	MSC KATALIN II IMO 9232656	1,730 TEU	2002	184 m	Sulzer - 6 RTA 62 U	12.3	D
1513	NORDTIGER IMO 9626247	1,700 TEU	2014	170 m	Doosan - 6S60ME-C8	12.3	D
1514	ADMIRAL GALAXY IMO 9365843	1,849 TEU	2008	183 m	MAN - 8S50MC-C	12.4	D
1515	EA GANNET IMO 9937476	1,528 TEU	2022	172 m	Hudong Heavy Machinery - 6S50ME-C9	12.4	D
1516	PUERTO LIMON EXPRESS IMO 9434943	2,550 TEU	2009	210 m	Hyundai - 7 RTA 72 U-B	12.4	D
1517	MAERSK NEWBURY IMO 9231470	2,550 TEU	1999	210 m	Sulzer - 7RTA72U	12.4	D
1518	EGY SKY IMO 9366483	1,147 TEU	2007	149 m	MAN - 7S50MC	12.4	D
1519	CONTAINERSHIPS ARCTIC IMO 9818400	1,368 TEU	2015	170 m	Wärtsilä - 7RT-flex50DF	12.4	D
1520	SEABOARD GARDENIA IMO 9673630	1,700 TEU	2014	170 m	MAN - 6S60ME	12.4	D
1521	MSC SINES R IMO 9210098	3,430 TEU	2001	243 m	Sulzer - 7RTA84C	12.4	D
1522	SANTA MARTA EXPRESS IMO 9446104	2,550 TEU	2010	210 m	Hyundai - 7 RTA 72 U-B	12.4	D
1523	PENANG BRIDGE IMO 9470753	1,708 TEU	2009	172 m	MAN - 7S60MC-C	12.4	D
1524	KAPTAN AYTAC A IMO 9242302	1,150 TEU	2001	155 m	MAN - 7S50MC-C	12.4	D
1525	GERHARD SCHULTE IMO 9328481	3,400 TEU	2006	231 m	MAN - 7K90MC-C	12.4	D
1526	MSC SUN F IMO 9223904	984 TEU	2003	143 m	Hudong Heavy Machinery - 7 L 42 MC	12.4	D
1527	EA NODDY IMO 9937488	1,500 TEU	2023	172 m	Hudong Heavy Machinery - 6S50ME-C9	12.5	D
1528	A. OBELIX IMO 9354674	1,700 TEU	2008	182 m	Hitachi - 7S60MC-C	12.5	D
1529	IRENES RESOLVE IMO 9227273	3,799 TEU	2001	257 m	Sulzer - 7RTA84C	12.5	D
1530	AS ANITA IMO 9470961	1,970 TEU	2010	189 m	MAN - 8S60ME-C	12.5	D
1531	AS PETRONIA IMO 9286786	2,556 TEU	2004	210 m	Sulzer - 7RTA72U-B	12.5	D
1532	ECO ZEPHYR IMO 9985978	13,665	2024	148 m	MAN-B&W 5S50ME-C9-LGIM	12.5	D
1533	SEATRADE BLUE IMO 9756107	2,259 TEU	2017	185 m	Hudong Heavy Machinery - 6G60ME-C9	12.5	D
1534	AS CARELIA IMO 9309409	2,824 TEU	2006	222 m	Hyundai - 7K80MC-C	12.5	D
1535	MAERSK NESTON IMO 9215907	2,556 TEU	1999	210 m	Hyundai - 7RTA72U	12.6	D
1536	WINDSWEPT IMO 9399806	2,750 TEU	2010	224 m	DALIAN MARINE - 7 L70MC-C	12.6	D
1537	PANDA 004 IMO 9968906	1,400 TEU	2024	170 m	MAN-B&W 7S50ME-C9	12.6	D
1538	PANDA 005 IMO 9981063	1,400 TEU	2022	170 m	MAN-B&W 7S50ME-C9	12.6	D
1539	MIRADOR EXPRESS IMO 9243174	3,237 TEU	2002	243 m	MAN - 8K80 MC-C	12.6	D
1540	CONTAINERSHIPS NORD IMO 9813993	1,368 TEU	2015	170 m	Wärtsilä - 7RT-flex50DF	12.6	D
1541	DJANET IMO 9845063	1,500 TEU	2020	172 m	MAN - 6S50ME-C9	12.6	D
1542	ST. JOHN IMO 9634646	1,700 TEU	2014	172 m	Wärtsilä - 6RT-flex60C	12.7	D
1543	ZEBRA IMO 9231157	2,602 TEU	2001	210 m	Hyundai - 8S70MC-C	12.7	D
1544	AS FREYA IMO 9292436	1,200 TEU	2004	154 m	MAN - 7S50MC-C	12.7	D
1545	MICHEL A IMO 9379349	1,604 TEU	2007	184 m	MAN - 8S50MC-C	12.7	D
1546	AS NINA IMO 9401178	3,400 TEU	2006	229 m	MAN - 8K80 MC-C	12.7	D
1547	MAERSK NANSHA IMO 9385996	2,546 TEU	2008	209 m	Hudong Heavy Machinery - 8S50MC-C	12.7	D
1548	MSC LEANDRA V IMO 9313943	4,196 TEU	2007	294 m	Wärtsilä - 12RT-flex96C	12.7	D
1549	MSC RHIANNON IMO 9224051	2,024 TEU	2001	188 m	Sulzer - 6RTA72U	12.7	D
1550	CALISTO IMO 9306067	1,574 TEU	2005	168 m	Hudong Heavy Machinery - 7 RT-FLEX 60C	12.7	D

Page 31 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.