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)

#1,285 of 2,221 container ships

CO₂ intensity

9.1 g CO₂/dwt·nm

vs segment average (9.9)

-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 · 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
1251	EXPRESS ARGENTINA IMO 9443011	3,398 TEU	2010	222 m	Hyundai - HHI-WART.7RT-FLEX82C	9.0	C
1252	CMA CGM TAGE IMO 9674555	9,200 TEU	2015	300 m	Hyundai - 9S90ME-C9	9.0	C
1253	PL GERMANY IMO 9288394	5,888 TEU	2003	281 m	MAN - 10K98MC	9.0	C
1254	MSC GUERNSEY V IMO 9631876	5,001 TEU	2015	251 m	Hyundai - 6S80ME-C9	9.0	C
1255	MSC HANNAH IMO 9316347	2,732 TEU	2006	211 m	MAN - 7S70MC-C	9.0	C
1256	GSL MARIA IMO 9231236	5,762 TEU	2001	277 m	Samsung Heavy Industries 12K90MC	9.0	C
1257	JAMAICA IMO 9403229	4,253 TEU	2009	260 m	MAN - 8K90MC-C	9.0	C
1258	ARICA EXPRESS IMO 9495765	4,620 TEU	2013	260 m	MAN - 8K80ME-C9	9.0	C
1259	MAX SCHULTE IMO 9676711	2,339 TEU	2015	189 m	Doosan - 6G60ME-C9	9.0	C
1260	LISA IMO 9418652	4,249 TEU	2009	261 m	MAN - 8K90MC-C	9.0	C
1261	MAERSK BINTAN IMO 9355288	3,194 TEU	2008	224 m	Hyundai - 8K80ME-CMK6	9.0	C
1262	YM FOUNTAIN IMO 9278090	5,551 TEU	2002	275 m	Hyundai - HYUNDAI SULZER 10RTA96C	9.0	C
1263	MSC SINGAPORE IV IMO 9224348	4,250 TEU	2002	260 m	8K90MC-C	9.0	C
1264	MSC KATYAYNI VI IMO 9110389	5,711 TEU	1996	275 m	MAN - 12K90MC-C	9.0	C
1265	DIMITRA C IMO 9250995	4,924 TEU	2002	294 m	Sulzer - 11RTA96C	9.0	C
1266	QUEBEC EXPRESS IMO 9294836	5,512 TEU	2006	268 m	Sulzer - 10RTA96C	9.1	C
1267	EVER SMILE IMO 9300415	7,024 TEU	2006	300 m	Sulzer - 10RTA96C	9.1	C
1268	KOTA KARIM IMO 9307425	3,081 TEU	2006	233 m	Mitsui - 7S70MC-C	9.1	C
1269	GREEN PARK IMO 9983449	2,954 TEU	2022	186 m	Yuchai Marine Power Co. Ltd. 7S60ME-C10	9.1	C
1270	MSC NICOLE X IMO 9214898	7,226 TEU	1998	347 m	MAN - 12 K 90 MC	9.1	C
1271	MSC ORIANE IMO 9372482	5,800 TEU	2008	277 m	MAN - 12 K 90 MC	9.1	C
1272	CMA CGM MOMBASA IMO 9367815	2,564 TEU	2008	212 m	Wärtsilä - 7 RTA 72 U	9.1	C
1273	MSC TUXPAN V IMO 9289972	5,060 TEU	2005	294 m	MAN - 9K90MC-C	9.1	C
1274	CHIQUITA SAILOR IMO 9344693	1,819 TEU	2008	186 m	Hyundai - 6 L70MC-C	9.1	C
1275	MSC ULSAN III IMO 9305001	2,702 TEU	2004	215 m	Hitachi - 7 L70MC-C	9.1	C
1276	APL CALIFORNIA IMO 9350044	6,350 TEU	2009	293 m	MAN - 11K98MC	9.1	C
1277	TIANJIN IMO 9398462	10,062 TEU	2010	349 m	MAN - 12K98MC	9.1	C
1278	XIN XIA MEN IMO 9270476	5,668 TEU	2004	280 m	Mitsui - 12K90MC-C	9.1	C
1279	DELPHINUS C IMO 9337652	4,888 TEU	2007	294 m	MAN - 9K98ME-C	9.1	C
1280	MSC BANU III IMO 9263332	3,534 TEU	2004	231 m	Hyundai - 7 K 90 MC-C MK6	9.1	C
1281	VENTO DI LEVANTE IMO 9683489	1,800 TEU	2015	172 m	MAN-B&W 6S60ME-C10	9.1	C
1282	MAERSK BULAN IMO 9355343	3,100 TEU	2008	224 m	Hyundai - 8K80ME-CMK6	9.1	C
1283	INDEPENDENT PRIMERO IMO 9298636	3,091 TEU	2006	220 m	MAN - 7K80MC-C	9.1	C
1284	MSC MANDY III IMO 8918966	3,005 TEU	1993	237 m	BREMER VULKAN AG SCHIFFBAU UND MASCHINENFABRIK 7 L 80 MC	9.1	C
1285	CHIQUITA HORIZON IMO 1032426	1,747 TEU	2025	172 m	MAN-B&W 6S60ME-C10	9.1	C
1286	SHANGHAI IMO 9305570	9,469 TEU	2006	351 m	MAN - 12K98MC	9.2	C
1287	MAERSK KENTUCKY IMO 9193240	4,300 TEU	1999	292 m	HHI - 10K90MC-C MK5	9.2	C
1288	MSC ALICANTE IMO 9480174	5,550 TEU	2011	270 m	MAN - 7K98MC-C	9.2	C
1289	MSC MARIA LAURA II IMO 8616520	2,505 TEU	1988	229 m	Hyundai - 7RTA84	9.2	C
1290	LOUIS MAERSK IMO 9190731	4,045 TEU	2001	266 m	Doosan - 10K90MC	9.2	C
1291	MSC TRACY V IMO 9295177	4,900 TEU	2005	294 m	Doosan - 9 K90MC-C	9.2	C
1292	TOKYO EXPRESS IMO 9193290	4,890 TEU	2000	294 m	MAN - 7K98MC	9.2	C
1293	MSC MICHIGAN VII IMO 9196864	6,252 TEU	2000	304 m	Hyundai - 10 K 98 MC-C	9.2	C
1294	MAERSK BATAM IMO 9355331	3,194 TEU	2008	224 m	Hyundai - 8K80ME-CMK6	9.2	C
1295	MSC RITA V IMO 9313929	4,196 TEU	2006	294 m	Sulzer - 12RT-flex96C	9.2	C
1296	APL FLORIDA IMO 9350032	6,350 TEU	2008	293 m	MAN - 11K98MC	9.2	C
1297	CONTI CORTESIA IMO 9293753	8,084 TEU	2005	334 m	Sulzer - 12RTA96C	9.2	C
1298	X-PRESS SALWEEN IMO 9862748	1,800 TEU	2021	172 m	Hudong Heavy Machinery Co. Ltd. 6S60ME-C10	9.2	C
1299	MAERSK NOKWANDA IMO 9294393	4,045 TEU	2005	266 m	Sulzer - 8RT-flex96C	9.2	C
1300	MSC ROMA IMO 9304447	9,178 TEU	2006	337 m	MAN - 12K98MC-C	9.2	C

Page 26 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.