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)

#1,562 of 2,098 container ships

CO₂ intensity

12.6 g CO₂/dwt·nm

vs segment average (10.38)

+21% 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 · 550 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
1551	MAERSK NANSHA IMO 9385996	2,500 TEU	2008	209 m	Hudong Heavy Machinery - 8S50MC-C	12.7	D
1552	MSC LEANDRA V IMO 9313943	4,196 TEU	2007	294 m	Wärtsilä - 12RT-flex96C	12.7	D
1553	CALISTO IMO 9306067	1,578 TEU	2005	168 m	Hudong Heavy Machinery - 7 RT-FLEX 60C	12.7	D
1554	HANSA ROTENBURG IMO 9401673	1,740 TEU	2009	175 m	Hudong Heavy Machinery - 7 S 60 MC-C	12.8	D
1555	DELPHIS RIGA IMO 9780665	1,924 TEU	2017	178 m	STX - 6S60ME-C8	12.8	D
1556	JOHANNES MAERSK IMO 9215189	2,840 TEU	2001	216 m	MAN - 7K90MC-C	12.8	D
1557	MARLA TIGER IMO 9932933	1,900 TEU	2015	172 m	MAN - 6S60ME-C10	12.8	D
1558	VALDIVIA IMO 9333395	1,856 TEU	2006	179 m	MAN - 6L70ME-C	12.8	D
1559	BELITAKI IMO 9152923	1,684 TEU	1998	179 m	Sulzer - 6 RTA 62 U	12.8	D
1560	HALLEY IMO 9275062	2,550 TEU	2004	210 m	Sulzer - 7RTA72U-B	12.8	D
1561	MAERSK NILE IMO 9385972	2,500 TEU	2008	209 m	MAN - 6K80MC-C	12.8	D
1562	SC MONTREAL IMO 9311830	2,478 TEU	2004	208 m	Hitachi - 7 L70MC-C	12.8	D
1563	CMA CGM FORT STE MARIE IMO 9261906	2,260 TEU	2003	197 m	HSD ENGINE CO. LTD. 8S70MC	12.8	D
1564	EMMA A IMO 9308194	2,800 TEU	2007	213 m	MAN - 8K80 MC-C	12.9	D
1565	ORNELLA IMO 9634660	1,700 TEU	2012	172 m	Wärtsilä - 6RT-flex60C	12.9	D
1566	CMA CGM FORT FLEUR D'EPEE IMO 9809851	3,300 TEU	2019	219 m	Wärtsilä - 7X72	12.9	D
1567	CMA CGM PLATON IMO 9362437	1,691 TEU	2007	170 m	Hyundai - 7S60MC-C	12.9	D
1568	HSL NIKE IMO 9301457	2,556 TEU	2005	210 m	Sulzer - 7RTA72U-B	12.9	D
1569	MONA LISA IMO 9309277	3,400 TEU	2006	231 m	Hyundai - 7 K 90 MC-C	12.9	D
1570	CMA CGM VALPARAISO IMO 9294185	2,824 TEU	2006	222 m	MAN - 7K80MC-C	12.9	D
1571	ETE N IMO 9509126	2,758 TEU	2012	212 m	Hudong Heavy Machinery - 8RT-FLEX68D	12.9	D
1572	MSC YOSHEEN IMO 9322011	1,726 TEU	2008	184 m	Wärtsilä - 6RTA62U	13.0	D
1573	JUDITH IMO 9359260	1,440 TEU	2008	170 m	MAN - 8S50MC-C	13.0	D
1574	PHEN BASIN IMO 9340752	4,250 TEU	2007	262 m	Doosan - 8K90MC-C	13.0	D
1575	MSC SUEDEROOG F IMO 9256327	1,402 TEU	2005	161 m	DALIAN MARINE - 6 S 60 MC-C	13.0	D
1576	WANDA A IMO 9415947	1,604 TEU	2009	184 m	MAN - 8S50MC-C	13.0	D
1577	CALYPSO IMO 9550371	1,577 TEU	2010	172 m	Mitsui - 7S60MC-C	13.1	D
1578	SAN ALFONSO IMO 9344667	1,819 TEU	2007	186 m	Hyundai - 6 L70MC-C	13.1	D
1579	AS PALINA IMO 9283693	2,550 TEU	2003	210 m	Hyundai - 7 RTA 72 U-B	13.1	D
1580	ESPOIR IMO 9491472	1,436 TEU	2011	168 m	Wärtsilä - 6RT-FLEX60C-B	13.1	D
1581	CMA CGM FORT DE FRANCE IMO 9809825	3,300 TEU	2019	219 m	Wärtsilä - 7X72	13.1	D
1582	GFS SAPPHIRE IMO 9330927	1,440 TEU	2007	170 m	MAN - 8S50MC-C	13.1	D
1583	ELBTOWER IMO 9968918	1,400 TEU	2021	170 m	MAN-B&W 7S50ME-C9	13.1	D
1584	PANDA 003 IMO 9968891	1,400 TEU	2021	170 m	MAN-B&W 7S50ME-C9	13.1	D
1585	AS CLAUDIA IMO 9330549	2,824 TEU	2007	222 m	MAN - 7K80MC-C	13.1	D
1586	EVER COZY IMO 9904510	1,809 TEU	2021	172 m	MAN - 6S60ME-C10	13.1	D
1587	FLEUR N IMO 9509138	2,758 TEU	2012	213 m	Hudong Heavy Machinery - 8RT-FLEX68D	13.2	D
1588	MSC BREMERHAVEN V IMO 9313967	4,196 TEU	2007	294 m	Wärtsilä - 12RT-flex96C	13.2	D
1589	MSC AUBE F IMO 9360283	1,060 TEU	2005	147 m	Mitsui - 7 S 50 MC	13.2	D
1590	JEAN PIERRE A IMO 9379351	1,604 TEU	2007	184 m	MAN - 8S50MC-C	13.2	D
1591	MSC TIANA F IMO 9108398	1,129 TEU	1996	159 m	H. CEGIELSKI-POZNAN S.A. 7 S 50 MC	13.2	D
1592	RAQUEL S IMO 9515591	1,577 TEU	2009	172 m	Mitsui - 7S60MC-C	13.2	D
1593	IRENES REMEDY IMO 9315850	1,368 TEU	2005	222 m	Hyundai - 7K80MC-C	13.2	D
1594	HARIS IMO 9670119	2,190 TEU	2015	185 m	MAN - 6S60ME-C8	13.2	D
1595	CAUCEDO EXPRESS IMO 9434931	2,556 TEU	2009	210 m	Hyundai - 7 RTA 72 U-B	13.2	D
1596	MSC REET II IMO 9236224	1,740 TEU	2002	175 m	Hudong Heavy Machinery - 7 S 60 MC-C	13.2	D
1597	EF EMMA IMO 9357808	1,706 TEU	2008	182 m	MAN - 9L58/64 CD	13.2	D
1598	TANJA IMO 9431692	4,253 TEU	2009	261 m	MAN - 8K90MC-C	13.2	D
1599	AS PENELOPE IMO 9294537	2,572 TEU	2005	210 m	STX - 8 S 70 MC-C	13.2	D
1600	EMPIRE IMO 9387425	1,440 TEU	2009	170 m	MAN - 8S50MC-C	13.3	D

Page 32 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.