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)

#1,123 of 2,221 container ships

CO₂ intensity

8.4 g CO₂/dwt·nm

vs segment average (9.9)

-15% 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
1101	AMERICA IMO 9285990	8,468 TEU	2004	334 m	Doosan - 12K98MC-C	8.2	C
1102	TURKON RIZE IMO 9321471	2,702 TEU	2006	215 m	Hitachi - 7 L70MC-C	8.2	C
1103	EXPRESS SPAIN IMO 9443047	3,398 TEU	2011	223 m	Hyundai - 7RT-FLEX82C	8.2	C
1104	CMA CGM COLUMBIA IMO 9722663	9,894 TEU	2015	300 m	MAN - 8S90ME-C9	8.2	C
1105	MSC ANDRIANA III IMO 9222120	2,550 TEU	2001	210 m	Sulzer - 7RTA72U	8.3	C
1106	MSC HELENA III IMO 9219393	3,091 TEU	2003	220 m	MAN - 7K80MC-C	8.3	C
1107	MERKUR HORIZON IMO 9456989	4,255 TEU	2009	262 m	Wärtsilä - 8RTA82C	8.3	C
1108	RUBY TOWER IMO 9618276	8,827 TEU	2013	300 m	Hyundai - 9S90ME-C8	8.3	C
1109	MSC AZOV IMO 9605255	9,403 TEU	2014	300 m	MAN - 9S90ME-C9	8.3	C
1110	MSC SARISKA V IMO 8715857	4,814 TEU	1990	294 m	Mitsui - 12K90MC	8.3	C
1111	MSC SHANGHAI V IMO 9231822	4,800 TEU	2000	294 m	Hyundai - HYUNDAI - MAN B&W 9K90MC-C	8.3	C
1112	MSC YUVIKA V IMO 9141285	4,688 TEU	1997	294 m	Hyundai - 9 K 90 MC-C	8.3	C
1113	SUAPE EXPRESS IMO 9332858	6,494 TEU	2008	293 m	Diesel United - 12RTA96C	8.3	C
1114	MSC SANTHYA IMO 8913411	3,005 TEU	1991	237 m	BREMER VULKAN AG SCHIFFBAU UND MASCHINENFABRIK 7 L 80 MC	8.3	C
1115	CMA CGM MANTA RAY IMO 9322499	5,090 TEU	2007	294 m	Hyundai - 9 K 90 MC-C	8.3	C
1116	ORCA I IMO 9318113	5,095 TEU	2006	294 m	MAN - 10K98MC-C	8.3	C
1117	BSG BONAIRE IMO 9303766	3,398 TEU	2006	222 m	MAN - 8K80 MC-C	8.3	C
1118	BARCELONA EXPRESS IMO 9626053	3,832 TEU	2014	228 m	Wärtsilä - 7RT-flex82C	8.3	C
1119	CMA CGM BALBOA IMO 9344655	1,819 TEU	2007	186 m	Hyundai - 6 L70MC-C	8.3	C
1120	MSC CLARITA III IMO 9300972	2,846 TEU	2006	213 m	MAN - 8K80 MC-C	8.3	C
1121	MSC KYUNGMIN IMO 9967005	1,800 TEU	2024	172 m	MAN - 6S60ME-C10	8.3	C
1122	CMA CGM MARLIN IMO 9322463	5,090 TEU	2006	294 m	Hyundai - 9 K 90 MC-C	8.4	C
1123	JAKARTA EXPRESS IMO 9539688	4,672 TEU	2012	260 m	CSSC - 8K80ME-C	8.4	C
1124	MAERSK TENNESSEE IMO 9314210	4,154 TEU	2007	292 m	Wärtsilä - 8RT-flex96C	8.4	C
1125	ISTANBUL BRIDGE IMO 9200811	4,843 TEU	2000	294 m	MAN - 7K98MC	8.4	C
1126	MSC ATHOS IMO 9618317	8,827 TEU	2013	300 m	MAN - 9S90ME-C8	8.4	C
1127	SANTA CRUZ IMO 9444742	7,090 TEU	2011	300 m	Doosan - 8RT FLEX 96C	8.4	C
1128	MSC HOUSTON V IMO 9463281	4,432 TEU	2010	267 m	Wärtsilä - 10RT-flex82C	8.4	C
1129	MSC HONG KONG V IMO 9231810	4,800 TEU	2000	294 m	Hyundai - HYUNDAI - MAN B&W 9K90MC-C	8.4	C
1130	MSC ELOISE IMO 8917778	2,598 TEU	1991	241 m	Sulzer - 6RTA84C	8.4	C
1131	PANDA 009 IMO 9294812	5,527 TEU	2006	276 m	Sulzer - 10RT-flex96C	8.4	C
1132	GSL MERCER IMO 9337274	2,824 TEU	2007	222 m	MAN - 7K80MC-C	8.4	C
1133	MAERSK NORFOLK IMO 9356139	2,478 TEU	2008	210 m	Doosan - 7L70ME-C	8.4	C
1134	GENOA EXPRESS IMO 9626041	3,832 TEU	2014	228 m	Wärtsilä - 7RT-flex82C	8.4	C
1135	AMALTHEA IMO 9397913	4,178 TEU	2009	269 m	Wärtsilä - 7RT-FLEX96C	8.4	C
1136	DURANDE IMO 1025540	24,556	2025	172 m	MAN-B&W 6S60ME-C10	8.4	C
1137	XIN LIAN YUN GANG IMO 9234355	5,668 TEU	2003	280 m	MAN - 12K90MC-C	8.4	C
1138	MAERSK NEWPORT IMO 9356127	2,478 TEU	2008	210 m	Doosan - 7L70ME-C	8.4	C
1139	KOBE EXPRESS IMO 9143544	4,612 TEU	1997	294 m	SAMSUNG HEAVY INDUSTRIES CO., LTD. 9 K 90 MC	8.4	C
1140	SHENZHEN IMO 9461491	8,586 TEU	2011	335 m	Wärtsilä - 12RT-flex96C	8.4	C
1141	MSC DENMARK VI IMO 9231250	5,762 TEU	2002	277 m	MAN - 12 K 90 MC	8.4	C
1142	OEL SURYA IMO 9320013	2,478 TEU	2006	208 m	MAN - 7L70MC-C	8.4	C
1143	FOS EXPRESS IMO 9348699	5,100 TEU	2008	294 m	MAN - 9K90MC-C	8.4	C
1144	MSC TAERIM IMO 9966984	1,800 TEU	2024	172 m	MAN - 6S60ME-C10	8.4	C
1145	MSC VILDA X IMO 9146479	7,226 TEU	1998	347 m	Hitachi - 12K90MC	8.4	C
1146	PORTO CHELI IMO 9221839	6,712 TEU	2001	300 m	Hyundai - 12 K98MC-C	8.5	C
1147	SONGA PANTHER IMO 9947732	1,692 TEU	2023	172 m	China Shipbuilding Industry Co Diesel Engine Co Ltd 6S60ME-C10.5	8.5	C
1148	MSC JOY IMO 9039250	2,021 TEU	1992	202 m	Sulzer - 6RTA76	8.5	C
1149	MAERSK MONTE PASCOAL IMO 9283203	4,000 TEU	2005	272 m	Wärtsilä - 8RTA96C	8.5	C
1150	BHARANI IMO 9448827	3,635 TEU	2010	240 m	Hyundai - 7 K 90 MC-C	8.5	C

Page 23 of 44 — 2,163 vessels

← Prev Next →

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.