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)

#1,668 of 2,221 container ships

CO₂ intensity

12.3 g CO₂/dwt·nm

vs segment average (9.9)

+25% 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
1651	AS CARELIA IMO 9309409	2,824 TEU	2006	222 m	Hyundai - 7K80MC-C	12.3	D
1652	MSC WIND II IMO 9173135	2,169 TEU	1999	184 m	Hyundai - 6S60MC	12.3	D
1653	CTM ISTMO IMO 9430870	1,740 TEU	2010	176 m	Hudong Heavy Machinery - 7S60MC-C MARK 8	12.3	D
1654	ANTIBES EXPRESS IMO 9243186	3,237 TEU	2000	243 m	HSD ENGINE CO. LTD 8K80MC-C	12.3	D
1655	MSC TAMPA IMO 9317925	5,041 TEU	2006	294 m	MAN - 8K98ME	12.4	D
1656	CMA CGM GREEN IMO 9810915	2,254 TEU	2019	185 m	MAN - 6G60ME-C9	12.4	D
1657	ADMIRAL GALAXY IMO 9365843	1,849 TEU	2008	183 m	MAN - 8S50MC-C	12.4	D
1658	CMA CGM AMBARLI IMO 9436422	3,534 TEU	2008	231 m	Hyundai - 7 K 90 MC-C	12.4	D
1659	LUEBECK IMO 9216092	1,078 TEU	2001	154 m	Hudong Heavy Machinery - 7 L 60 MC	12.4	D
1660	CLAIRE A IMO 9379387	1,604 TEU	2005	184 m	MAN - 8S50MC-C	12.5	D
1661	MSC BREMERHAVEN V IMO 9313967	4,196 TEU	2007	294 m	Wärtsilä - 12RT-flex96C	12.6	D
1662	JOHANNES MAERSK IMO 9215189	2,840 TEU	2001	216 m	MAN - 7K90MC-C	12.6	D
1663	MSC MELTEMI III IMO 9440306	2,758 TEU	2010	213 m	Wärtsilä - 8RT-flex68	12.6	D
1664	ECO ZEPHYR IMO 9985978	13,665	2024	148 m	MAN-B&W 5S50ME-C9-LGIM	12.6	D
1665	MSC PANAYA IMO 9217565	1,730 TEU	2000	184 m	Sulzer - 6 RTA 62 U	12.6	D
1666	NORDLUCHS IMO 9673666	1,730 TEU	2014	170 m	MAN - 6S60ME-C8	12.6	D
1667	GALANI IMO 9337597	1,740 TEU	2006	177 m	Hudong Heavy Machinery - 7 S60MC-C MK8	12.7	D
1668	GFS RHEA IMO 9373486	1,732 TEU	2007	177 m	Hudong Heavy Machinery - 7 S60MC-C MK8	12.7	D
1669	MSC KAYLA IMO 9242637	1,768 TEU	2002	179 m	MANISES DIESEL - 6 L 70 MC	12.7	D
1670	UBENA IMO 9690078	2,200 TEU	2016	185 m	MAN - 5G60ME-C9	12.7	D
1671	DIANE A IMO 9385532	1,604 TEU	2008	184 m	MAN - 8S50MC-C	12.7	D
1672	A LA MARINE IMO 9386524	1,440 TEU	2009	170 m	MAN - 8S50MC-C	12.7	D
1673	EM HYDRA IMO 9338967	1,740 TEU	2005	175 m	MAN - 7S60MC-C	12.7	D
1674	BUXLINK IMO 9235816	2,478 TEU	2002	207 m	Wärtsilä - 7 RTA 72 U-B	12.7	D
1675	MSC ESHA III IMO 9326706	2,702 TEU	2007	215 m	Hitachi - 7 L70MC-C	12.7	D
1676	GSL LALO IMO 9330525	2,824 TEU	2006	222 m	Hyundai - 7K80MC-C	12.8	D
1677	BELITAKI IMO 9152923	1,684 TEU	1998	179 m	Sulzer - 6 RTA 62 U	12.8	D
1678	MSC PAXI II IMO 9256391	1,400 TEU	2004	175 m	Hudong Heavy Machinery - 7 S 60 MC-C	12.8	D
1679	CMA CGM NACALA IMO 9550307	1,577 TEU	2009	172 m	Mitsui - 7S60MC-C	12.8	D
1680	MARIANNE SCHULTE IMO 9694438	2,339 TEU	2015	189 m	MAN - 6G60ME-C9	12.8	D
1681	NIKOLAS IMO 9203526	2,506 TEU	2000	207 m	Sulzer - 7RTA72U	12.8	D
1682	PENANG BRIDGE IMO 9470753	1,708 TEU	2009	172 m	MAN - 7S60MC-C	12.8	D
1683	EA GANNET IMO 9937476	1,500 TEU	2022	172 m	Hudong Heavy Machinery - 6S50ME-C9	12.8	D
1684	NCL NORDLAND IMO 9981805	1,300 TEU	2025	150 m	MAN-B&W 6S50ME-C9-LGIM	12.8	D
1685	FAYSTON FARMS IMO 9344552	2,490 TEU	2006	212 m	3. MAJ - 7 RTA 72 UB	12.8	D
1686	EA NODDY IMO 9937488	1,500 TEU	2023	172 m	Hudong Heavy Machinery - 6S50ME-C9	12.8	D
1687	MARLA TIGER IMO 9932933	1,900 TEU	2015	172 m	MAN - 6S60ME-C10	12.8	D
1688	TANGER A IMO 9330939	1,440 TEU	2007	170 m	MAN - 8S50MC-C	12.9	D
1689	SPYROS V IMO 9453365	4,249 TEU	2011	261 m	MAN - 8K90ME-C	12.9	D
1690	CMA CGM FORT FLEUR D'EPEE IMO 9809851	3,300 TEU	2019	219 m	Wärtsilä - 7X72	12.9	D
1691	CMA CGM FORT ROYAL IMO 9809837	3,300 TEU	2019	219 m	Wärtsilä - 7X72	12.9	D
1692	MSC ACE II IMO 9309162	1,740 TEU	2005	175 m	Hudong Heavy Machinery - 7 S 60 MC-C	12.9	D
1693	FERDINANDA S IMO 9445019	1,577 TEU	2008	172 m	Mitsui - 7S60MC-C	12.9	D
1694	ECO OSTRO IMO 9959565	1,170 TEU	2024	148 m	5S50ME-C9-LGIM-coEGR	12.9	D
1695	MSC ORTOLAN II IMO 9401685	1,740 TEU	2009	176 m	Hudong Heavy Machinery - 7 S 60 MC-C	12.9	D
1696	MEDKON ANKARA IMO 9248954	1,200 TEU	2003	154 m	MAN - 7S50MC-C	12.9	D
1697	MSC BELLE IMO 9203904	1,116 TEU	1998	149 m	Hudong Heavy Machinery - 8RTA48T	12.9	D
1698	CONTAINERSHIPS STELLAR IMO 9866251	1,380 TEU	2015	170 m	Wärtsilä - 7RT-flex50DF	13.0	D
1699	MSC NIKOLETA II IMO 9232644	1,730 TEU	2002	184 m	Sulzer - 6 RTA 62 U	13.0	D
1700	DUBAI TOWER IMO 9433066	1,740 TEU	2010	175 m	Hudong Heavy Machinery - 7 S 60 MC-C	13.0	D

Page 34 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.