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)

#1,732 of 2,221 container ships

CO₂ intensity

13.2 g CO₂/dwt·nm

vs segment average (9.89)

+33% 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 · 461 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

2,208

vessels ranked

2.88

greenest (g CO₂/dwt·nm)

8.22

segment median

#	Vessel	Size (TEU)	Built	Length	Main Engine	Carbon intensity — AER (g CO₂/dwt·nm)	Grade
1701	AS ALVA IMO 9337030	1,853 TEU	2008	191 m	MAN - 8S60ME-C	13.1	D
1702	MED CESME IMO 9256365	1,740 TEU	2003	175 m	Hudong Heavy Machinery - 7 S 60 MC-C	13.1	D
1703	MSC KATALIN II IMO 9232656	1,730 TEU	2002	184 m	Sulzer - 6 RTA 62 U	13.1	D
1704	CONTAINERSHIPS NORD IMO 9813993	1,368 TEU	2015	170 m	Wärtsilä - 7RT-flex50DF	13.1	D
1705	ECO MAESTRO IMO 9985942	13,675	2024	148 m	MAN-B&W 5S50ME-C9-LGIM	13.1	D
1706	MSC SAMU IMO 9222106	2,672 TEU	2001	208 m	H. CEGIELSKI-POZNAN S.A. 8 S 70 MC-C	13.1	D
1707	KAPTAN AYTAC A IMO 9242302	1,150 TEU	2001	155 m	MAN - 7S50MC-C	13.1	D
1708	MICHEL A IMO 9379349	1,604 TEU	2007	184 m	MAN - 8S50MC-C	13.1	D
1709	CMA CGM HAMLET IMO 9763710	2,338 TEU	2016	178 m	STX - 6S60ME-C8	13.2	D
1710	CMA CGM QUEST IMO 9734159	2,200 TEU	2017	18 m	Hudong Heavy Machinery - 6S60ME-C8	13.2	D
1711	SONGA WOLF IMO 9373498	1,732 TEU	2007	177 m	Hudong Heavy Machinery - 7 S60MC-C MK8	13.2	D
1712	NILEDUTCH LION IMO 9337456	8,241 TEU	2008	333 m	Mitsui - MITSUI- MAN B&W 12K98MC	13.2	D
1713	SONGA PUMA IMO 9399789	2,750 TEU	2009	225 m	DALIAN MARINE - 7 L70MC-C	13.2	D
1714	CMA CGM DAVAO IMO 9347293	1,819 TEU	2008	186 m	Hyundai - 6 L70MC-C	13.2	D
1715	MSC JIANI IMO 9966934	1,800 TEU	2023	172 m	UnKnown 6S60ME-C10-HPSCR	13.2	D
1716	MSC CALISTA II IMO 9306067	1,574 TEU	2005	168 m	Hudong Heavy Machinery - 7 RT-FLEX 60C	13.3	D
1717	ECO LEVANT IMO 9985954	13,684	2024	148 m	MAN-B&W 5S50ME-C9-LGIM	13.3	D
1718	MED STAR IMO 9337028	1,853 TEU	2007	191 m	Hudong Heavy Machinery - 8 S60ME-C	13.3	D
1719	CALYPSO IMO 9550371	1,577 TEU	2010	172 m	Mitsui - 7S60MC-C	13.3	D
1720	CMA CGM FORT SAINT CHARLES IMO 9809849	3,300 TEU	2019	219 m	Wärtsilä - 7X72	13.3	D
1721	ESSENCE IMO 9491496	1,349 TEU	2011	168 m	Wärtsilä - 6RT-FLEX60C-B	13.3	D
1722	SCORPIUS IMO 9307279	2,602 TEU	2007	210 m	STX - 8 S 70 MC-C	13.3	D
1723	SC MONTREAL IMO 9311830	2,478 TEU	2004	208 m	Hitachi - 7 L70MC-C	13.3	D
1724	MSC AGGELIKI II IMO 9357846	1,732 TEU	2007	177 m	MAN - 7S60MC-C	13.3	D
1725	MERATUS JAYAWIJAYA IMO 9305881	2,474 TEU	2005	207 m	HSD ENGINE CO., LTD. 7 L 70 MC	13.3	D
1726	OSLO TRADER IMO 9817925	1,800 TEU	2019	172 m	Wärtsilä - 6RT-flex58T-E	13.4	D
1727	CMA CGM MAPUTO IMO 9491628	1,740 TEU	2011	175 m	Hudong Heavy Machinery - 7 S 60 MC-C	13.4	D
1728	CMA CGM SAHARA IMO 9220861	2,226 TEU	2002	196 m	Hyundai - 8 S 70 MC	13.4	D
1729	CMA CGM FORT DE FRANCE IMO 9809825	3,300 TEU	2019	219 m	Wärtsilä - 7X72	13.4	D
1730	EVER COZY IMO 9904510	1,809 TEU	2021	172 m	MAN - 6S60ME-C10	13.5	D
1731	MSC NITA IMO 9084607	1,512 TEU	1996	167 m	Mitsubishi - 7UEC60LS	13.5	E
1732	CMA CGM NAVEGANTES IMO 9303780	2,824 TEU	2006	222 m	MAN - 7K80MC-C	13.5	E
1733	CMA CGM RED IMO 9690107	2,259 TEU	2016	185 m	Doosan - 5G60ME-C9	13.5	E
1734	KOTA NAZIM IMO 9390240	1,810 TEU	2008	180 m	MAN - 7S60MC-C8	13.6	E
1735	EMPIRE IMO 9387425	1,400 TEU	2009	170 m	MAN - 8S50MC-C	13.6	E
1736	CAPITAINE TUPAIA IMO 9410301	1,713 TEU	2010	175 m	HHI - 7S60MC-C7	13.6	E
1737	CHARM C IMO 9383259	2,500 TEU	2009	209 m	Wärtsilä - 7RT-flex68	13.6	E
1738	SOUTH IMO 9491472	1,349 TEU	2011	168 m	Wärtsilä - 6RT-FLEX60C-B	13.6	E
1739	SEASPAN CALICANTO IMO 9435038	2,546 TEU	2010	209 m	MAN - 6K80MC-C	13.6	E
1740	X-PRESS KAVERI IMO 9470765	1,577 TEU	2008	172 m	Mitsui - 7S60MC-C	13.6	E
1741	FLEUR N IMO 9509138	2,758 TEU	2012	213 m	Hudong Heavy Machinery - 8RT-FLEX68D	13.6	E
1742	BG BLUE IMO 9964625	1,400 TEU	2024	170 m	Yuchai Marine Power Co. Ltd. 7S50ME-C9	13.6	E
1743	PANDA 004 IMO 9968906	1,400 TEU	2024	170 m	MAN-B&W 7S50ME-C9	13.6	E
1744	CAPT. KATTELMANN IMO 9330915	1,440 TEU	2006	170 m	MAN - 8S50MC-C	13.6	E
1745	MSC RICHIKA F IMO 9386988	1,300 TEU	2008	161 m	Hudong Heavy Machinery - 6 S 60 MC-C	13.7	E
1746	MSC IRA II IMO 9323493	1,732 TEU	2007	177 m	Hudong Heavy Machinery - 7 S60MC-C MK8	13.7	E
1747	ZEBRA IMO 9231157	2,602 TEU	2001	210 m	Hyundai - 8S70MC-C	13.7	E
1748	BRUARFOSS IMO 9822841	2,150 TEU	2020	179 m	Wärtsilä - 7G60ME-C9 (Tier III)	13.7	E
1749	ECO UMANDE IMO 9959541	1,170 TEU	2024	148 m	UnKnown 5S50ME-C9-LGIM-coEGR	13.7	E
1750	KAAN KALKAVAN IMO 9365879	1,849 TEU	2012	183 m	STX - MAN 7S60MC-C	13.8	E

Page 35 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.