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)

#1,238 of 2,221 container ships

CO₂ intensity

8.9 g CO₂/dwt·nm

vs segment average (9.89)

-10% 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

1,081 at D/E

A 310B 415C 704D 602E 479

2,510 rated vessels · 461 of the D/E set dock within 12 months

Docking pipeline — D/E vessels per quarter

'27 Q1

'27 Q2

'27 Q3

'27 Q4

112

'28 Q1

'28 Q2

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	1,485	1–3%	€80k–250k	—	vendor claim
Propeller redesign / replacement	1,440	5–10%	€400k–1,200k	—	vendor claim
Bulbous bow reprofiling	1,344	2–6%	€300k–900k	—	vendor claim
Methanol dual-fuel conversion	965	5–15%	€8,000k–20,000k	—	vendor claim
LNG dual-fuel conversion	795	15–25%	€15,000k–35,000k	—	vendor claim
Shaft generator / PTO	360	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

624

D/E vessels with at least one eligible measure

€3,295–7,790M

capex range, top measure per vessel (624 of 624 with computable scaling)

1.48–2.63 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
SEPELU · <25k	E	26y	2026	69%	Aug 2028
MSC SABRINA III · <25k	E	37y	2026	61%	Mar 2027
NILEDUTCH LION · 100-200k	E	18y	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)

8.22

segment median

#	Vessel	Size (TEU)	Built	Length	Main Engine	Carbon intensity — AER (g CO₂/dwt·nm)	Grade
1201	LANGENESS IMO 9944778	1,800 TEU	2023	172 m	MAN - 6S60ME-C10	8.7	C
1202	CMA CGM SEMARANG IMO 9377133	2,700 TEU	2007	215 m	MAN - 7L70MC-C	8.7	C
1203	CMA CGM MENDELSSOHN IMO 9449106	3,646 TEU	2012	240 m	MAN - 7K90MC-C	8.7	C
1204	MSC NIOVI VIII IMO 9290488	7,455 TEU	2005	300 m	MAN - 12K98MC-C	8.7	C
1205	MSC GRETA III IMO 9415296	2,732 TEU	2008	211 m	MAN - 7S70MC-C	8.8	C
1206	PANDA 008 IMO 9248162	5,752 TEU	2003	279 m	Hyundai - 10 RTA 96 C	8.8	C
1207	MAERSK BENGUELA IMO 9355367	3,078 TEU	2005	223 m	Hyundai - 8K80ME-C	8.8	C
1208	MSC LIPSIA III IMO 9237498	3,091 TEU	2004	220 m	CEGIELSKI, POZNAN POLAND 7 K 80 MC-C	8.8	C
1209	LUNA MAERSK IMO 9190781	4,045 TEU	2002	266 m	Doosan - 10K90MC	8.8	C
1210	MSC FOLEGANDROS VI IMO 9247560	5,576 TEU	2001	279 m	Mitsui - 10K98MC-VI	8.8	C
1211	MSC INDIA IMO 9231248	5,762 TEU	2002	277 m	MAN - 12 K 90 MC	8.8	C
1212	LAUST MAERSK IMO 9190743	4,045 TEU	2001	266 m	Doosan - 10K90MC	8.8	C
1213	VOLGA MAERSK IMO 9775749	3,600 TEU	2018	200 m	STX - 6G60ME-C9	8.8	C
1214	NYK METEOR IMO 9337638	4,888 TEU	2007	294 m	MAN - 9K98MC-C	8.8	C
1215	MAERSK NOMAZWE IMO 9294381	4,045 TEU	2004	266 m	Sulzer - 8RT-flex96C	8.8	C
1216	MSC LEIGH IMO 9320439	4,860 TEU	2006	275 m	MAN - 7K98MC-C	8.8	C
1217	LITTLE ATHINA IMO 9980368	24,500	2024	172 m	MAN-B&W 6S60ME-C10	8.8	C
1218	MSC ANTONIA IMO 9398216	6,500 TEU	2009	304 m	MAN - 10K98MC-C	8.8	C
1219	MSC SENA IMO 9116369	2,517 TEU	1996	202 m	Hyundai - 8 K 80 MC-C	8.8	C
1220	GARDINER IMO 9275048	2,556 TEU	2003	210 m	Sulzer - 7RTA72U-B	8.8	C
1221	MSC NEDERLAND III IMO 8918954	2,668 TEU	1992	237 m	BREMER VULKAN AG SCHIFFBAU UND MASCHINENFABRIK 7 L 80 MC	8.8	C
1222	MSC RONIT R IMO 9293167	4,922 TEU	2005	294 m	Sulzer - 9RTA96C	8.8	C
1223	MSC DONATA IMO 9237151	3,900 TEU	2002	258 m	Sulzer - 9RTA84C	8.8	C
1224	MAERSK DURBAN IMO 9299044	2,478 TEU	2005	208 m	Hitachi - 7 L 70 MC-C- MK7	8.8	C
1225	MSC NURIA IMO 9349825	4,860 TEU	2008	275 m	MAN - 7K98MC-C	8.8	C
1226	CHIQUITA HARVESTER IMO 9976226	23,900	2024	172 m	MAN-B&W 6S60ME-C10	8.8	C
1227	NYK NEBULA IMO 9337640	4,888 TEU	2007	294 m	MAN - 9K98MC-C	8.8	C
1228	MAERSK GARONNE IMO 9235579	4,318 TEU	2003	292 m	Hyundai - 10K90MC-C-MKV	8.9	C
1229	MAERSK GIRONDE IMO 9235555	4,318 TEU	2002	292 m	Hyundai - 10K90MC-C MK5	8.9	C
1230	IONIKOS IMO 9397614	4,308 TEU	2009	260 m	MAN - 8K90MC-C	8.9	C
1231	BROOKLYN BRIDGE IMO 9458999	4,432 TEU	2010	267 m	Wärtsilä - 10RT-flex82C	8.9	C
1232	MSC ROWAN IMO 9477610	4,250 TEU	2012	261 m	STX - 8K90ME-C6	8.9	C
1233	CMA CGM EIFFEL IMO 9248112	4,367 TEU	2002	282 m	MAN - 8K98MC-C	8.9	C
1234	LEONIDAS Z IMO 9963528	2,782 TEU	2024	186 m	Hyundai - 6S60ME-C10	8.9	C
1235	MEHMET KAHVECI A IMO 9248916	1,150 TEU	2002	155 m	MAN - 7S50MC-C	8.9	C
1236	MSC MASHA 3 IMO 9188219	2,169 TEU	1998	184 m	Mitsui - 6S60MC	8.9	C
1237	BAMSI BEYREK IMO 9215919	2,556 TEU	2001	210 m	Hyundai - 7RTA72U	8.9	C
1238	ADAMS IMO 9260914	5,928 TEU	2003	280 m	MAN - 10K98MC	8.9	C
1239	VAYENGA MAERSK IMO 9775751	3,600 TEU	2018	200 m	STX - 6G60ME-C9	8.9	C
1240	CMA CGM PUGET IMO 9248124	4,367 TEU	2002	282 m	MAN - 8K98MC-C	8.9	C
1241	CMA CGM SYDNEY IMO 9315953	4,300 TEU	2007	264 m	MAN - 8K90MC-C	8.9	C
1242	MSC HARMONY III IMO 9309411	2,824 TEU	2006	222 m	Hyundai - 7K80MC-C	8.9	C
1243	MAERSK VALLETTA IMO 9833369	1,800 TEU	2019	172 m	Wärtsilä - 6RT-flex58T-E	8.9	C
1244	MAERSK KANSAS IMO 9311701	4,154 TEU	2007	292 m	Wärtsilä - 8RT-flex96C	8.9	C
1245	DETROIT EXPRESS IMO 9610169	3,800 TEU	2014	228 m	Wärtsilä - 7RT-flex82C	8.9	C
1246	VISTULA MAERSK IMO 9775737	3,600 TEU	2018	200 m	STX - 6G60ME-C9	8.9	C
1247	MAERSK BAYETE IMO 9355355	3,078 TEU	2009	223 m	Hyundai - 8K80ME-C	8.9	C
1248	GSL TEGEA IMO 9222986	5,514 TEU	2001	277 m	HSD Engine Co. Ltd. 12K90MC	8.9	C
1249	MSC MIRELLA R IMO 9293179	4,922 TEU	2005	294 m	Hyundai - 9 RTA96C-B	8.9	C
1250	KALAHARI EXPRESS IMO 9400095	6,300 TEU	2010	306 m	Wärtsilä - 10RT-flex96C	8.9	C

Page 25 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.