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)

#1,212 of 2,098 container ships

CO₂ intensity

9.5 g CO₂/dwt·nm

vs segment average (10.38)

-8% 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 · 551 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
1201	BF HAMBURG IMO 9332860	6,350 TEU	2009	293 m	MAN - 11K98MC	9.4	C
1202	MSC KERRY VII IMO 9221815	6,446 TEU	2001	300 m	Hyundai - 12 K98MC-C	9.4	C
1203	CMA CGM GUARANI IMO 9234135	2,478 TEU	2002	207 m	Wärtsilä - 7 RTA 72 U-B	9.4	C
1204	MAERSK JAIPUR IMO 9343974	2,824 TEU	2008	222 m	MAN - 7K80MC-C	9.4	C
1205	MSC VIGO IMO 9480227	5,550 TEU	2012	270 m	Doosan - 7K98MC-C	9.4	C
1206	MSC YAMUNA VI IMO 9288409	5,888 TEU	2004	281 m	MAN - 10K98MC	9.5	C
1207	GREEN BAY IMO 9983437	2,954 TEU	2022	186 m	Yuchai Marine Power Co. Ltd. 7S60ME-C10	9.5	C
1208	LE HAVRE EXPRESS IMO 9332872	6,350 TEU	2009	293 m	MAN - 11K98MC	9.5	C
1209	GFS GENESIS IMO 9704659	4,350 TEU	2015	240 m	MAN - 7G70ME-C9	9.5	C
1210	JOLLY GIADA IMO 9484522	4,400 TEU	2010	260 m	Doosan - 8K90MC-C	9.5	C
1211	BOSTON IMO 9315355	3,500 TEU	2007	247 m	STX - 9 K80MC-C	9.5	C
1212	MSC AJACCIO IMO 9605267	9,403 TEU	2014	300 m	MAN - 9S90ME-C9	9.5	C
1213	MSC IKARIA VI IMO 9261449	4,492 TEU	2002	279 m	Sulzer - 11RTA96C	9.5	C
1214	APL OREGON IMO 9532783	6,350 TEU	2010	293 m	Mitsui - 11K98MC	9.5	C
1215	INDEPENDENT HORIZON IMO 9334375	3,091 TEU	2008	220 m	MAN - 7K80MC-C	9.5	C
1216	MSC MARTA IMO 9295385	5,600 TEU	2005	275 m	Hyundai - 10 K 98 MC-C	9.5	C
1217	VIKING ORCA IMO 9555254	1,800 TEU	2015	172 m	MAN-B&W 6S60ME-C10	9.5	C
1218	CMA CGM AFRICA FOUR IMO 9451965	3,718 TEU	2010	228 m	Wärtsilä - 7RT-flex82C	9.5	C
1219	MSC POLARIS IMO 9074042	4,743 TEU	1995	300 m	Mitsubishi - 12RTA84C	9.6	C
1220	SAFMARINE NOMAZWE IMO 9294381	4,045 TEU	2004	266 m	Sulzer - 8RT-flex96C	9.6	C
1221	CMA CGM NAVEGANTES IMO 9303780	2,824 TEU	2006	222 m	MAN - 7K80MC-C	9.6	D
1222	MSC ARUSHI R. IMO 9244881	4,112 TEU	2002	281 m	Sulzer - 9RTA96C	9.6	D
1223	MSC ALBANY IMO 9619438	8,886 TEU	2013	299 m	MAN - 9S90ME-C8	9.6	D
1224	CMA CGM MONTOIR IMO 9348443	4,294 TEU	2008	264 m	MAN - 8K90MC-C	9.6	D
1225	MERKUR HORIZON IMO 9456989	4,255 TEU	2009	262 m	Wärtsilä - 8RTA82C	9.6	D
1226	MSC NADRIELY IMO 9149328	2,468 TEU	1998	208 m	DIESELMOTORENWERK VULKAN GMBH WERK ROSTOCK 7 L 70 MC	9.6	D
1227	LEDA MAERSK IMO 9190755	4,045 TEU	2001	266 m	Doosan - 10K90MC	9.6	D
1228	XIN WEI HAI IMO 9312573	4,250 TEU	2006	263 m	Doosan - 8K90MC-1	9.6	D
1229	ZIM PACIFIC IMO 9440837	4,255 TEU	2009	262 m	Hyundai - 8RTA82C	9.6	D
1230	MSC ALIX 3 IMO 9166651	2,452 TEU	1998	200 m	Mitsubishi - 8UEC60LS	9.6	D
1231	MSC MIRELLA R IMO 9293179	4,931 TEU	2005	294 m	Hyundai - 9 RTA96C-B	9.6	D
1232	SEASPAN BRISBANE IMO 9290139	4,253 TEU	2005	260 m	8K90MC-C	9.6	D
1233	GLASGOW EXPRESS IMO 9232589	4,115 TEU	2002	281 m	Sulzer - 9RTA96C	9.7	D
1234	IRENES WISDOM IMO 9953391	2,800 TEU	2021	186 m	Hyundai Heavy Industries Co Ltd - South Korea 6S60ME-C10-HPSCR	9.7	D
1235	MONTPELLIER IMO 9314973	2,824 TEU	2006	222 m	Hyundai - 7K80MC-C	9.7	D
1236	GREEN SEA IMO 9865996	1,800 TEU	2020	172 m	MAN - 6S60ME-C10	9.7	D
1237	LEXA MAERSK IMO 9190767	3,700 TEU	2001	266 m	10K90MC	9.7	D
1238	SONGA PANTHER IMO 9947732	1,692 TEU	2023	172 m	China Shipbuilding Industry Co Diesel Engine Co Ltd 6S60ME-C10.5	9.7	D
1239	CASABLANCA A IMO 9330903	1,440 TEU	2006	170 m	MAN - 8S50MC-C	9.7	D
1240	CMA CGM MONTREAL IMO 9363417	2,401 TEU	2007	200 m	MAN - 7S70MC-C	9.7	D
1241	CAPE CORFU IMO 9857432	2,708 TEU	2021	186 m	MAN - 6G60ME-C9	9.7	D
1242	MAERSK VALLETTA IMO 9833369	1,800 TEU	2019	172 m	Wärtsilä - 6RT-flex58T-E	9.7	D
1243	MSC ANNICK IMO 9169122	4,038 TEU	1998	261 m	Sulzer - 9RTA84C	9.7	D
1244	MARIUS IMO 9802504	2,500 TEU	2018	195 m	Hudong Heavy Machinery - 6G60ME-C9	9.7	D
1245	MAERSK BENGUELA IMO 9355367	3,078 TEU	2009	223 m	Hyundai - 8K80ME-C	9.8	D
1246	MSC ANTWERP III IMO 9304746	2,490 TEU	2005	212 m	Hyundai - 7 RTA 72 U-B	9.8	D
1247	CMA CGM FORT ST.GEORGES IMO 9261918	2,260 TEU	2003	197 m	HSD ENGINE CO. LTD. 8S70MC	9.8	D
1248	MSC MARIA PIA IMO 9155107	2,808 TEU	1997	196 m	Hyundai - 8 RTA 72 U	9.8	D
1249	MSC PORTO III IMO 9299020	2,478 TEU	2004	208 m	Hitachi - 7 L70MC-C	9.8	D
1250	TAMPA I IMO 9196840	6,252 TEU	2000	304 m	Hyundai - 10 K 98 MC-C	9.8	D

Page 25 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.