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)

#1,297 of 2,098 container ships

CO₂ intensity

10.1 g CO₂/dwt·nm

vs segment average (10.39)

-2% 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 · 552 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
1251	NORDPACIFIC IMO 9802487	2,500 TEU	2018	195 m	Hyundai - 6G60ME-C9	9.8	D
1252	AEOLUS IMO 9088524	1,906 TEU	1996	177 m	BREMER VULKAN VERBUND AG 7 L 60 MC	9.9	D
1253	GH FOEHN IMO 9377559	2,702 TEU	2008	216 m	MAN - 7L70MC-C	9.9	D
1254	MSC RENAISSANCE III IMO 9358436	3,398 TEU	2006	223 m	MAN - 8K80 MC-C	9.9	D
1255	GEMLIK EXPRESS IMO 9751107	2,586 TEU	2017	186 m	HHM Shangchuan Diesel 6G60ME-C9	9.9	D
1256	OOCL KOBE IMO 9329526	4,506 TEU	2004	260 m	Doosan - 8K90MC-C	9.9	D
1257	MSC ANGELA IMO 9351593	4,254 TEU	2008	265 m	DALIAN MARINE - 8K90MC-C	9.9	D
1258	JAMAICA EXPRESS IMO 9686912	6,882 TEU	2015	271 m	MAN - 8G80ME-C9	9.9	D
1259	ONTARIO EXPRESS IMO 9290816	5,512 TEU	2005	268 m	Sulzer - 10RTA96C	9.9	D
1260	MSC MELANI III IMO 9399741	2,797 TEU	2007	225 m	DALIAN MARINE - 7 L70MC-C	9.9	D
1261	BALTIMORE STAR IMO 9440796	4,255 TEU	2009	262 m	Wärtsilä - 8RTA82C	9.9	D
1262	MANDALAY IMO 9743502	2,340 TEU	2019	189 m	Doosan - 6G60ME-C9	9.9	D
1263	IZMIT EXPRESS IMO 9740665	2,586 TEU	2017	186 m	HHM Shangchuan Diesel 6G60ME-C9	9.9	D
1264	MED TRABZON IMO 9141780	2,052 TEU	1997	182 m	DIESELMOTORENWERK VULKAN GMBH WERK ROSTOCK 6 S 60 MC	10.0	D
1265	ALLEGRI IMO 9127459	1,120 TEU	1996	169 m	Mitsui - 7 S 50 MC	10.0	D
1266	MEXICO EXPRESS IMO 9686900	6,882 TEU	2015	271 m	MAN - 8G80ME-C9	10.0	D
1267	SEASPAN SYDNEY IMO 9290103	4,253 TEU	2005	260 m	Doosan Engine Co Ltd - South Korea 8K90MC-C	10.0	D
1268	MSC MASHA 3 IMO 9188219	2,169 TEU	1998	184 m	Mitsui - 6S60MC	10.0	D
1269	MSC KYUNGMIN IMO 9967005	1,800 TEU	2024	172 m	MAN - 6S60ME-C10	10.0	D
1270	XIN CHANG SHA IMO 9312559	4,250 TEU	2005	263 m	Mitsui - 8K90MC-1	10.0	D
1271	NEOKASTRO IMO 9400215	4,043 TEU	2011	269 m	Wärtsilä - 7RT-FLEX96C	10.0	D
1272	KASHAN IMO 9270696	2,200 TEU	2016	187 m	Hyundai - 6L70MC	10.0	D
1273	MSC KIM IMO 9351581	4,254 TEU	2008	265 m	MAN - 8K90MC-C	10.0	D
1274	MSC CAGLIARI IV IMO 9318187	3,853 TEU	2007	261 m	MAN - 8K90MC-C	10.0	D
1275	BIG DOG IMO 9256377	1,740 TEU	2003	176 m	Hudong Heavy Machinery - 7 S 60 MC-C	10.0	D
1276	HANSA AUSTRALIA IMO 9459436	3,635 TEU	2014	240 m	MAN - 7K90MC-C	10.0	D
1277	CMA CGM TARRAGONA IMO 9471214	4,250 TEU	2010	261 m	MAN - 8K90MC-C	10.1	D
1278	MSC BARBADOS IMO 9289544	5,047 TEU	2005	294 m	Hyundai - 8 RTA 96 C-B	10.1	D
1279	ZIM ASIA IMO 9464716	4,308 TEU	2010	260 m	MAN - 8K90MC-C	10.1	D
1280	MERSIN EXPRESS IMO 9740653	2,586 TEU	2017	186 m	HHM Shangchuan Diesel 6G60ME-C9	10.1	D
1281	CMA CGM PARANAGUA IMO 9246683	3,091 TEU	2005	220 m	MAN - 7K80MC-C	10.1	D
1282	MSC PASSION III IMO 9399765	2,797 TEU	2008	225 m	MAN - 7L70MC-C	10.1	D
1283	MAERSK BULAN IMO 9355343	3,100 TEU	2008	224 m	Hyundai - 8K80ME-CMK6	10.1	D
1284	ZIM IBERIA IMO 9431719	4,256 TEU	2009	261 m	MAN - 8K90MC-C	10.1	D
1285	MAERSK BOSTON IMO 9313905	4,196 TEU	2006	294 m	Sulzer - 12RT-flex96C	10.1	D
1286	CMA CGM SAVANNAH IMO 9348431	4,294 TEU	2008	264 m	MAN - 8K90MC-C	10.1	D
1287	GSL MELINA IMO 9509152	3,400 TEU	2013	228 m	Hudong Heavy Machinery - 8RT-FLEX68D TIER II	10.1	D
1288	LISBON EXPRESS IMO 9108128	2,268 TEU	1995	216 m	Sulzer - 7RTA72U	10.1	D
1289	SEASPAN NEW DELHI IMO 9301770	4,250 TEU	2005	260 m	HSD Engine Co. Ltd. 8K90MC-C	10.1	D
1290	CELSIUS NICOSIA IMO 9330496	3,450 TEU	2007	239 m	Hyundai - 7 K 90 MC-C MK6	10.1	D
1291	ITAL BONNY IMO 9786970	2,926 TEU	2015	212 m	Hitachi - 8S70ME-C8	10.1	D
1292	MAERSK BINTAN IMO 9355288	3,194 TEU	2008	224 m	Hyundai - 8K80ME-CMK6	10.2	D
1293	MSC ROWAN IMO 9477610	4,249 TEU	2012	261 m	STX - 8K90ME-C6	10.2	D
1294	CMA CGM LAPIS IMO 9386495	4,360 TEU	2009	260 m	MAN - 8K90MC-C	10.2	D
1295	NIKOLAS IMO 9203526	2,506 TEU	2000	207 m	Sulzer - 7RTA72U	10.2	D
1296	ATLANTICA PIONEER IMO 9449120	3,635 TEU	2012	240 m	MAN - 7K90MC-C	10.2	D
1297	ADRASTOS IMO 9951185	1,800 TEU	2021	172 m	MAN-B&W 6S60ME-C10	10.2	D
1298	CMA CGM MALTA IMO 9301433	2,556 TEU	2004	210 m	Sulzer - 7RTA72U-B	10.2	D
1299	SPYROS V IMO 9453365	4,249 TEU	2011	261 m	MAN - 8K90ME-C	10.2	D
1300	MAERSK IZMIR IMO 9348168	3,364 TEU	2008	232 m	HHI - 8K80 E-C MK6	10.2	D

Page 26 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.