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)

#134 of 2,221 container ships

CO₂ intensity

4.1 g CO₂/dwt·nm

vs segment average (9.9)

-58% greener

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
100	ONE TRUTH IMO 9773210	20,150 TEU	2017	400 m	Mitsui - 11G95ME-C9.5	4.0	A
103	EVER ECO IMO 1025203	16,500 TEU	2023	369 m	—	4.0	A
102	MATHILDE MAERSK IMO 9632179	18,000 TEU	2011	399 m	Doosan - 8S80ME-C9	4.0	A
104	MSC SAN FRANCISCO IMO 9987328	16,000 TEU	2025	366 m	8G95ME-C10-GI	4.0	A
105	BUSAN EXPRESS IMO 9540144	23,660 TEU	2024	400 m	UnKnown 11G95ME-C10-GI	4.0	A
106	CMA CGM IGUACU IMO 9859131	14,812 TEU	2021	366 m	Hyundai Heavy Industries Co. Ltd. 11G90ME-C10-GI-EGRTC	4.0	A
107	DAMIETTA EXPRESS IMO 9543108	23,660 TEU	2024	400 m	11G95ME-C10-GI	4.0	A
109	CMA CGM ARGENTINA IMO 9839909	15,128 TEU	2019	366 m	Hyundai - 11G90ME-C10	4.1	A
108	MONACO MAERSK IMO 9778832	19,630 TEU	2015	399 m	Doosan - 7G80ME-C9	4.1	A
112	MSC CHINA IMO 9936642	272,131	2023	400 m	UnKnown 11X92	4.1	A
116	ASTRID MAERSK IMO 9948750	16,592 TEU	2021	351 m	Hyundai Heavy Industries Co Ltd - South Korea 8G95ME-C10-LGIM	4.1	A
111	CMA CGM SORBONNE IMO 9839210	23,000 TEU	2021	400 m	CSSC - 12X92DF	4.1	A
115	CMA CGM BALI IMO 9867827	14,812 TEU	2021	366 m	Hyundai - 11G90ME-C10	4.1	A
114	WILHELMSHAVEN EXPRESS IMO 9943918	23,660 TEU	2025	400 m	UnKnown 11G95ME-C10-GI	4.1	A
110	ALEXANDRA MAERSK IMO 9948786	16,592 TEU	2021	351 m	Hyundai Heavy Industries Co Ltd - South Korea 8G95ME-C10-LGIM	4.1	A
113	MAASTRICHT MAERSK IMO 9780483	19,630 TEU	2015	399 m	Doosan - 7G80ME-C9	4.1	A
117	CMA CGM HOPE IMO 9897755	15,128 TEU	2021	366 m	Hyundai - 11G90ME-C10-GI	4.1	A
118	MSC ANITA IMO 9947146	16,000 TEU	2024	366 m	China Shipbuilding Industry Co Diesel Engine Co Ltd 9X92-B-HPSCR	4.1	A
121	CMA CGM PLATINUM IMO 9996707	147,196	2025	335 m	MAN-B&W 7G90ME-C10-LGIM	4.1	A
120	MSC C. MONTAINE IMO 9930961	15,500 TEU	2020	366 m	MAN - 9G95ME-C10	4.1	A
119	ANTONIA MAERSK IMO 9948762	16,592 TEU	2021	351 m	Hyundai Heavy Industries Co Ltd - South Korea 8G95ME-C10-LGIM	4.1	A
123	HAMBURG EXPRESS IMO 9943865	23,660 TEU	2024	400 m	11G95ME-C10-GI	4.1	A
122	YM WORLD IMO 9684653	14,080 TEU	2015	368 m	MAN - 11S90ME-C9	4.1	A
125	GENOVA EXPRESS IMO 9943906	23,660 TEU	2025	400 m	UnKnown 11G95ME-C10-GI	4.1	A
124	MANILA MAERSK IMO 9780469	19,630 TEU	2015	399 m	Doosan - 7G80ME-C9	4.1	A
127	ANE MAERSK IMO 9948748	16,592 TEU	2021	351 m	Hyundai Heavy Industries Co Ltd - South Korea 8G95ME-C10-LGIM	4.1	A
128	MSC DARLENE IMO 9930959	15,500 TEU	2023	366 m	MAN - 9G95ME-C10	4.1	A
126	YM WISH IMO 9684641	15,000 TEU	2015	368 m	MAN - 11S90ME-C9	4.1	A
132	GDANSK EXPRESS IMO 9943877	23,660 TEU	2024	400 m	11G95ME-C10-GI	4.1	A
131	MSC IERANTO IMO 9963619	15,600 TEU	2025	368 m	9G95ME-C10-GI	4.1	A
133	OOCL PORTUGAL IMO 9922615	24,000 TEU	2020	400 m	12X92	4.1	A
130	MSC TURKIYE IMO 9931288	24,000 TEU	2023	400 m	HD Hyundai Heavy Industries Co Ltd - South Korea 11X92	4.1	A
129	CMA CGM UNITY IMO 9897767	15,128 TEU	2021	366 m	Hyundai Heavy Industries Co Ltd - South Korea 11G90ME-C10-GI-EGRTC	4.1	A
134	MSC LEILA IMO 1016654	139,647	2025	335 m	MAN-B&W 6G90ME-C10-GI	4.1	A
136	MAERSK CAMDEN IMO 9924194	15,500 TEU	2022	366 m	MAN - 9G95ME-C10	4.1	A
135	CMA CGM CONCORDE IMO 9839208	23,000 TEU	2021	400 m	CSSC - 12X92DF	4.1	A
137	MSC VIVIANA IMO 9777216	19,200 TEU	2017	400 m	Doosan - 11G95ME-C9	4.1	A
140	MSC IDANIA IMO 9962562	202,562	2024	366 m	MAN-B&W 8G95ME-C10	4.1	A
139	MSC FREYA IMO 9932062	15,264 TEU	2023	366 m	HD Hyundai Heavy Industries Co Ltd - South Korea 11G90ME-C10-GI	4.1	A
138	MSC VICTORINE IMO 9946867	16,000 TEU	2023	366 m	China Shipbuilding Industry Co Diesel Engine Co Ltd 9X92-HPSCR	4.1	A
141	CMA CGM TENERE IMO 9859117	14,812 TEU	2020	366 m	Hyundai - 11G90ME-C10-GI	4.1	A
143	CMA CGM GRACE BAY IMO 9938145	15,000 TEU	2024	366 m	Wärtsilä - 10X92DF	4.1	A
142	CMA CGM GALAPAGOS IMO 9894997	15,000 TEU	2022	366 m	Wärtsilä - 10X92DF	4.1	A
149	CMA CGM MONTMARTRE IMO 9839155	23,000 TEU	2021	400 m	CSSC - 12X92DF	4.2	A
148	MANILA EXPRESS IMO 9540120	23,660 TEU	2023	400 m	UnKnown 11G95ME-C10-GI	4.2	A
147	ONE TREASURE IMO 9773222	20,182 TEU	2018	400 m	Mitsui - 11G95ME-C9	4.2	A
146	CMA CGM BIG SUR IMO 9938169	15,000 TEU	2024	366 m	Wärtsilä - 10X92DF	4.2	A
145	OOCL GDYNIA IMO 9908102	24,188 TEU	2020	400 m	HSD Engine Co Ltd - South Korea 12X92DF	4.2	A
144	MSC MARIELLA IMO 9934747	24,000 TEU	2023	400 m	HD Hyundai Heavy Industries Co Ltd - South Korea 11X92	4.2	A
150	OOCL TURKIYE IMO 9908138	24,000 TEU	2020	400 m	HSD Engine Co Ltd - South Korea 12X92	4.2	A

Page 3 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.