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)

#1,756 of 2,221 container ships

CO₂ intensity

13.6 g CO₂/dwt·nm

vs segment average (9.9)

+37% 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
1751	ANNABA IMO 9306201	1,578 TEU	2006	168 m	Sulzer - 7RT-flex60C	13.8	E
1752	MSC NORDEROOG F IMO 9256315	1,402 TEU	2004	161 m	DALIAN MARINE - 6 S 60 MC-C	13.8	E
1753	JOANNA BORCHARD IMO 1016563	17,495	2025	150 m	MAN-B&W 6S50ME-C9	13.8	E
1754	LASALLE IMO 9349368	2,450 TEU	2006	200 m	MAN - 7S70MC-C	13.8	E
1755	NEWYORKER IMO 9209104	2,506 TEU	2001	207 m	Sulzer - 7RTA72U	13.8	E
1756	KAWA BUDAPEST IMO 9379571	1,060 TEU	2006	147 m	Mitsui - 7 S 50 MC	13.8	E
1757	MERATUS JAYAKARTA IMO 9305879	2,474 TEU	2005	207 m	HSD ENGINE CO., LTD. 7 L 70 MC	13.9	E
1758	MSC LEANDRA V IMO 9313943	4,196 TEU	2007	294 m	Wärtsilä - 12RT-flex96C	13.9	E
1759	NORTH IMO 9491501	1,436 TEU	2011	168 m	Wärtsilä - 6RT-FLEX60C-B	13.9	E
1760	SC MEDFORD IMO 9275103	1,200 TEU	2004	154 m	MAN - 7S50MC-C	13.9	E
1761	SLS AZURE IMO 9155377	1,740 TEU	2000	176 m	Hudong Heavy Machinery - 7 S 60 MC	13.9	E
1762	MSC TAMISHKA F IMO 9358905	1,304 TEU	2007	161 m	STX - 6S60MC-C	13.9	E
1763	MSC AUBE F IMO 9360283	1,060 TEU	2005	147 m	Mitsui - 7 S 50 MC	13.9	E
1764	TUKUMA ARCTICA IMO 9822865	2,150 TEU	2020	179 m	MAN - 7G60ME-C9 (Tier III)	13.9	E
1765	NORDIC ISTRIA IMO 9474383	1,085 TEU	2011	158 m	Wärtsilä - 6RT-flex50	13.9	E
1766	MSC BAHRAIN II IMO 9359301	1,440 TEU	2006	170 m	MAN - 8S50MC-C	13.9	E
1767	MARLA BULL IMO 9932945	1,900 TEU	2015	172 m	—	14.0	E
1768	MARSA PRIDE IMO 9301445	2,556 TEU	2005	210 m	Hyundai - 7 RTA 72 U-B	14.0	E
1769	AS SABRINA IMO 9387463	1,713 TEU	2009	175 m	MAN - 7S60MC-C	14.0	E
1770	MSC SUEDEROOG F IMO 9256327	1,402 TEU	2005	161 m	DALIAN MARINE - 6 S 60 MC-C	14.0	E
1771	MSC AMY IMO 9242651	1,683 TEU	2002	179 m	MAN - 6 L 70 MC	14.0	E
1772	JEAN PIERRE A IMO 9379351	1,604 TEU	2007	184 m	MAN - 8S50MC-C	14.0	E
1773	ELBINSEL IMO 9977426	20,128	2024	170 m	MAN-B&W 7S50ME-C9	14.0	E
1774	EF EMMA IMO 9357808	1,706 TEU	2008	182 m	MAN - 9L58/64 CD	14.1	E
1775	MARTI SPIRIT IMO 9477347	1,338 TEU	2010	161 m	STX - 8S50ME-C7	14.1	E
1776	FREDERIK IMO 9328637	1,200 TEU	2005	155 m	MAN - 7S50MC-C	14.1	E
1777	CIELO DI RABAT IMO 9141792	2,061 TEU	1997	182 m	DIESELMOTORENWERK VULKAN GMBH WERK ROSTOCK 6 S 60 MC	14.1	E
1778	VENTO DI MELTEMI IMO 9242297	1,221 TEU	2002	155 m	MAN - 7S50MC-C	14.1	E
1779	ELBELLA IMO 9312640	1,740 TEU	2006	176 m	Hudong Heavy Machinery - 7 S 60 MC-C	14.1	E
1780	NEVZAT KALKAVAN IMO 9365867	1,849 TEU	2005	183 m	STX - 7S60MC-C7	14.1	E
1781	MSC TIANA F IMO 9108398	1,129 TEU	1996	159 m	H. CEGIELSKI-POZNAN S.A. 7 S 50 MC	14.2	E
1782	ERASMUS GOAL IMO 9626558	1,805 TEU	2013	172 m	Doosan - DOOSAN-MAN 6S60MC-C MK8.1	14.2	E
1783	MSC KUWAIT III IMO 9226413	2,526 TEU	2001	208 m	HSD ENGINE CO., LTD. 7 L 70 MC	14.2	E
1784	NEPTUNE MATUA IMO 9670119	2,190 TEU	2015	185 m	MAN - 6S60ME-C8	14.2	E
1785	PORTSMOUTH IMO 9302437	2,478 TEU	2004	208 m	Hitachi - 7 L70MC-C	14.2	E
1786	UAFL RACER IMO 9334818	1,740 TEU	2007	176 m	Hudong Heavy Machinery - 7 S 60 MC-C	14.2	E
1787	DOUCE FRANCE IMO 9845661	2,296 TEU	2020	190 m	Wärtsilä - 7RT-flex58T-E	14.3	E
1788	APL SAIPAN IMO 9239850	1,641 TEU	2002	169 m	HSD ENGINE CO. LTD. 7S60MC	14.3	E
1789	CHIQUITA MERCHANT IMO 9344631	1,819 TEU	2007	186 m	Hyundai - 6 L70MC-C	14.3	E
1790	ESPERANCE IMO 9491484	1,436 TEU	2011	168 m	Wärtsilä - 6RT-FLEX60C-B	14.3	E
1791	RAQUEL S IMO 9515591	1,577 TEU	2009	172 m	Mitsui - 7S60MC-C	14.3	E
1792	VALENCIA EXPRESS IMO 9108130	2,268 TEU	1996	216 m	Sulzer - 7RTA72U	14.3	E
1793	DJANET IMO 9845063	1,500 TEU	2020	172 m	MAN - 6S50ME-C9	14.3	E
1794	MARINA L IMO 9431331	1,368 TEU	2009	161 m	STX - 6S60MC-C	14.3	E
1795	TRADEWIND IMO 9367944	907 TEU	2007	145 m	Hitachi - 6L50MC-MKV	14.3	E
1796	CMA CGM FORT ST PIERRE IMO 9261891	2,260 TEU	2003	197 m	HSD ENGINE CO. LTD. 8S70MC	14.4	E
1797	ALEXANDER B IMO 9328649	1,223 TEU	2006	155 m	MAN - 7S50MC-C	14.4	E
1798	CIRTA IMO 9845051	1,500 TEU	2020	172 m	Hudong Heavy Machinery Co Ltd - China 6S50ME-C9-HPSCR	14.4	E
1799	MEDKON RIZE IMO 9114347	652 TEU	1996	101 m	MAK/Caterpillar - 8M552C	14.5	E
1800	AS PENELOPE IMO 9294537	2,572 TEU	2005	210 m	STX - 8 S 70 MC-C	14.5	E

Page 36 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.