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)

#149 of 2,098 container ships

CO₂ intensity

4.5 g CO₂/dwt·nm

vs segment average (10.39)

-57% 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

1,080 at D/E

A 313B 411C 706D 598E 482

2,510 rated vessels · 557 of the D/E set dock within 12 months

Docking pipeline — D/E vessels per quarter

102

'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	1,642	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	353	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
MSC SABRINA III · <25k	E	37y	2026	61%	Mar 2027
C LION · 100-200k	E	21y	2026	59%	Feb 2028

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
100	MAERSK HIDALGO IMO 9784283	15,226 TEU	2015	353 m	Hyundai - 8G95ME-C9	4.3	A
102	OOCL GERMANY IMO 9776183	21,413 TEU	2015	400 m	Doosan - 11G95ME-C9	4.3	A
103	MSC ADYA IMO 9932921	15,600 TEU	2021	364 m	HD Hyundai Heavy Industries Co Ltd - South Korea 8X92-B	4.3	A
105	ONE FRUITION IMO 9934371	15,000 TEU	2023	366 m	Hyundai Heavy Industries Co. Ltd. 8G95ME-C10-EGRTC	4.3	A
104	ONE MEISHAN IMO 9805465	13,900 TEU	2018	366 m	Mitsui - 11S90ME-C9	4.3	A
106	ONE FORTUNE IMO 9944819	15,000 TEU	2024	366 m	8G95ME-C10-EGRTC	4.3	A
107	MONACO MAERSK IMO 9778832	19,630 TEU	2015	399 m	Doosan - 7G80ME-C9	4.3	A
108	MARCHEN MAERSK IMO 9632143	18,270 TEU	2011	399 m	Doosan - 8S80ME-C9	4.3	A
110	MOSCOW MAERSK IMO 9778818	19,630 TEU	2015	399 m	Doosan - 7G80ME-C9	4.3	A
109	MSC VIVIANA IMO 9777216	19,200 TEU	2017	400 m	Doosan - 11G95ME-C9	4.3	A
111	MAERSK CAMPTON IMO 9924211	15,500 TEU	2022	366 m	MAN - 9G95ME-C10	4.4	A
112	OOCL UNITED KINGDOM IMO 9776200	21,413 TEU	2015	400 m	Doosan - 11G95ME-C9	4.4	A
113	MURCIA MAERSK IMO 9780457	19,630 TEU	2015	399 m	Doosan - 7G80ME-C9	4.4	A
115	CMA CGM MONTMARTRE IMO 9839155	23,000 TEU	2021	400 m	CSSC - 12X92DF	4.4	A
114	MSC IVANA IMO 9398371	11,668 TEU	2008	364 m	MAN - 12K98ME	4.4	A
117	ZHONG GU XIONG AN IMO 9812901	2,500 TEU	2018	180 m	Hudong Heavy Machinery - 6RT-flex48T	4.4	A
116	CMA CGM TENERE IMO 9859117	14,812 TEU	2020	366 m	Hyundai - 11G90ME-C10-GI	4.4	A
118	CMA CGM PALAIS ROYAL IMO 9839181	23,000 TEU	2020	400 m	CSSC - 12X92DF	4.4	A
119	MSC FREYA IMO 9932062	15,264 TEU	2023	366 m	HD Hyundai Heavy Industries Co Ltd - South Korea 11G90ME-C10-GI	4.4	A
120	MSC JEWEL IMO 9842073	14,272 TEU	2019	366 m	Wärtsilä - 10X92	4.4	A
122	MSC ELENOIRE IMO 9962603	202,562	2024	366 m	MAN-B&W 8G95ME-C10	4.4	A
121	CMA CGM LOUVRE IMO 9839143	23,000 TEU	2020	400 m	CSSC - 12X92DF	4.4	A
125	MSC ANNA IMO 9777204	19,200 TEU	2016	400 m	Doosan - 11G95ME-C9	4.4	A
124	ALS CERES IMO 9938303	7,165 TEU	2021	255 m	Dalian Marine Diesel Co Ltd - China 6G80ME-C10	4.4	A
123	MAERSK HAVANA IMO 9784336	15,226 TEU	2015	353 m	Hyundai - 8G95ME-C9	4.4	A
127	MSC CLARA IMO 9708693	19,224 TEU	2015	396 m	Hyundai - 11S90ME-C10	4.4	A
126	ONE TRIBUTE IMO 9769295	20,170 TEU	2017	400 m	Doosan - 11G95ME-C9.2 (Tier II)	4.4	A
128	HMM HANBADA IMO 9869203	14,000 TEU	2021	365 m	MAN - 9G95ME-C10	4.4	A
131	HYUNDAI PLUTO IMO 9725160	10,000 TEU	2016	324 m	Hyundai - 9G80ME-C9	4.4	A
130	OOCL ABU DHABI IMO 9922524	24,188 TEU	2020	400 m	CSSC-MES Diesel Co Ltd - China 12X92DF	4.4	A
129	OOCL JAPAN IMO 9776195	21,413 TEU	2015	400 m	Doosan - 11G95ME-C9	4.4	A
132	OOCL SCANDINAVIA IMO 9776212	21,413 TEU	2015	400 m	Doosan - 11G95ME-C9	4.5	A
134	MAERSK HONG KONG IMO 9784257	14,000 TEU	2017	353 m	Hyundai - 8G95ME-C9	4.5	A
136	MSC MAURA IMO 9962536	202,562	2024	366 m	MAN-B&W 8G95ME-C10	4.5	A
133	ONE MILANO IMO 9757187	13,870 TEU	2018	366 m	Mitsubishi - 11S90ME-C9	4.5	A
138	MSC MARIE IMO 9962574	202,562	2024	366 m	MAN-B&W 8G95ME-C10	4.5	A
137	MSC AUDREY IMO 9540065	15,128 TEU	2023	366 m	Hyundai Heavy Industries Co Ltd - South Korea 8H35DF	4.5	A
135	MSC VICTORINE IMO 9946867	16,000 TEU	2023	366 m	China Shipbuilding Industry Co Diesel Engine Co Ltd 9X92-HPSCR	4.5	A
140	YM WREATH IMO 9708473	14,078 TEU	2017	368 m	Hyundai - 11S90ME-C10	4.5	A
139	MSC AMBRA IMO 9839480	23,756 TEU	2020	400 m	MAN - 11G95ME	4.5	A
141	COSCO SHIPPING UNIVERSE IMO 9795610	20,988 TEU	2018	400 m	CSSC - 12S90ME-C10	4.5	A
142	ONE FRONTIER IMO 9934383	15,000 TEU	2023	366 m	Hyundai Heavy Industries Co. Ltd. 8G95ME-C10-EGRTC	4.5	A
144	METTE MAERSK IMO 9632155	18,000 TEU	2011	399 m	Doosan - 8S80ME-C9	4.5	A
143	MAERSK HANOI IMO 9784295	15,226 TEU	2015	353 m	Hyundai - 8G95ME-C9	4.5	A
147	MSC GULSUN IMO 9839430	23,756 TEU	2019	400 m	Hyundai - 11G95ME-C9	4.5	A
146	CMA CGM IGUACU IMO 9859131	14,812 TEU	2021	366 m	Hyundai Heavy Industries Co. Ltd. 11G90ME-C10-GI-EGRTC	4.5	A
145	OOCL HONG KONG IMO 9776171	21,413 TEU	2015	400 m	Doosan - 11G95ME-C9	4.5	A
148	MSC ALLEGRA IMO 9897028	23,656 TEU	2021	400 m	Doosan - 11G95ME-C9	4.5	A
150	ONE MONACO IMO 9757204	20,500 TEU	2018	366 m	Mitsubishi - 11S90ME-C10.5	4.5	A
149	MSC RIFAYA IMO 9767388	19,472 TEU	2017	400 m	MAN - 11G95ME-C9	4.5	A

Page 3 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.