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)

#198 of 2,221 container ships

CO₂ intensity

4.3 g CO₂/dwt·nm

vs segment average (9.9)

-56% 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
152	MSC ANGOLA IMO 9978729	14,000 TEU	2025	335 m	UnKnown 8X92-B-LPSCR	4.2	A
154	MSC RAYA IMO 9930052	24,100 TEU	2023	400 m	UnKnown 11X92	4.2	A
151	MSC CELESTINO MARESCA IMO 9930040	24,100 TEU	2023	400 m	UnKnown 11X92	4.2	A
153	MSC AAYA IMO 9927263	14,812 TEU	2022	366 m	Hyundai Heavy Industries Co Ltd - South Korea 11G90ME-C10-GI	4.2	A
156	MSC ILENIA IMO 9962548	202,562	2023	366 m	MAN-B&W 8G95ME-C10	4.2	A
155	MSC MONICA CRISTINA IMO 9932050	15,264 TEU	2023	366 m	HD Hyundai Heavy Industries Co Ltd - South Korea 11G90ME-C10-GI	4.2	A
157	MSC ORSOLA IMO 9946726	16,000 TEU	2024	366 m	China Shipbuilding Industry Co Diesel Engine Co Ltd 9X92-B-HPSCR	4.2	A
158	MSC MICHEL CAPPELLINI IMO 9929431	24,100 TEU	2023	400 m	HD Hyundai Heavy Industries Co Ltd - South Korea 11X92	4.2	A
159	CMA CGM SCANDOLA IMO 9859129	14,812 TEU	2020	366 m	Hyundai - 11G90ME-C10	4.2	A
160	CMA CGM MAUI IMO 9938157	15,000 TEU	2024	366 m	Wärtsilä - 10X92DF	4.2	A
162	CMA CGM HELIUM IMO 9996721	147,196	2025	335 m	MAN-B&W 7G90ME-C10-LGIM	4.2	A
161	CMA CGM SYMI IMO 9867839	15,128 TEU	2022	366 m	Hyundai Heavy Industries Co. Ltd. 11G90ME-C10-GI-EGRTC	4.2	A
165	MSC HORTENSE IMO 9978951	11,400 TEU	2022	335 m	MAN-B&W 6G90ME-C10-GI	4.2	A
164	MSC NICOLA MASTRO IMO 9930064	24,100 TEU	2023	400 m	UnKnown 11X92	4.2	A
163	BANGKOK EXPRESS IMO 9943889	23,660 TEU	2025	400 m	UnKnown 11G95ME-C10-GI	4.2	A
166	MAYVIEW MAERSK IMO 9619995	18,270 TEU	2011	399 m	Doosan - 8S80ME-C MK9.2 TIER II	4.2	A
167	MSC IVA IMO 9962550	202,562	2023	366 m	MAN-B&W 8G95ME-C10	4.2	A
168	ONE FRONTIER IMO 9934383	15,000 TEU	2023	366 m	Hyundai Heavy Industries Co. Ltd. 8G95ME-C10-EGRTC	4.2	A
169	YM TRANQUILITY IMO 9792682	20,388 TEU	2022	334 m	MAN - 9S90ME-C10	4.2	A
172	HMM GARNET IMO 9944455	13,248 TEU	2024	335 m	HD Hyundai Heavy Industries Co Ltd - South Korea 7G95ME-C10-LPSCR	4.2	A
171	MSC IVORY COAST IMO 9974474	8,300 TEU	2024	260 m	Hyundai Heavy Industries Co. Ltd. 7G80ME-C10-coEGR	4.2	A
170	BERLIN EXPRESS IMO 9540118	23,660 TEU	2023	400 m	UnKnown 11G95ME-C10-GI	4.2	A
174	COSCO SHIPPING TAURUS IMO 9783459	20,038 TEU	2018	400 m	CSSC - 11S90ME-C10	4.2	A
173	YM WISDOM IMO 9757216	14,000 TEU	2015	366 m	MAN - 11S90ME-C9	4.2	A
175	ONE MACKINAC IMO 9689603	13,900 TEU	2015	366 m	Mitsui - 11S90ME-C9	4.3	A
177	CMA CGM CHAMPS ELYSEES IMO 9839131	23,000 TEU	2020	400 m	CSSC - 12X92DF	4.3	A
176	ALETTE MAERSK IMO 9948774	16,592 TEU	2021	351 m	Hyundai Heavy Industries Co Ltd - South Korea 8G95ME-C10-LGIM	4.3	A
179	YM WELLNESS IMO 9704623	14,080 TEU	2015	368 m	MAN - 11S90ME-C9	4.3	A
178	MSC METTE IMO 9936630	272,192	2023	399 m	UnKnown 11X92	4.3	A
181	CMA CGM TROCADERO IMO 9839167	23,000 TEU	2021	400 m	CSSC - 12X92DF	4.3	A
180	MSC QUITTERIE IMO 9946881	16,000 TEU	2024	366 m	China Shipbuilding Industry Co Diesel Engine Co Ltd 9X92-HPSCR	4.3	A
182	MARSEILLE MAERSK IMO 9778844	19,630 TEU	2015	399 m	Doosan - 7G80ME-C9	4.3	A
183	CMA CGM LOUVRE IMO 9839143	23,000 TEU	2020	400 m	CSSC - 12X92DF	4.3	A
185	COSCO SHIPPING VIRGO IMO 9783461	20,038 TEU	2018	400 m	CSSC - 11S90ME-C10	4.3	A
184	MSC ROSE IMO 9957359	15,600 TEU	2021	364 m	Hyundai Heavy Industries Co Ltd - South Korea 8G95ME-C10-GI-LPSCR	4.3	A
186	ONE TRADITION IMO 9769300	20,170 TEU	2017	400 m	Doosan - 11G95ME-C9	4.3	A
187	MAERSK HALIFAX IMO 9784271	15,226 TEU	2015	368 m	Hyundai - 8G95ME-C9	4.3	A
192	MSC MUGE IMO 9978949	11,400 TEU	2022	335 m	MAN-B&W 6G90ME-C10-GI	4.3	A
191	MADRID MAERSK IMO 9778791	19,630 TEU	2015	399 m	Doosan - 7G80ME-C9	4.3	A
190	MARCHEN MAERSK IMO 9632143	18,270 TEU	2011	399 m	Doosan - 8S80ME-C9	4.3	A
189	MARGRETHE MAERSK IMO 9632131	18,270 TEU	2011	399 m	Doosan - 8S80ME-C9	4.3	A
188	MSC GIUSY IMO 9947134	16,000 TEU	2023	366 m	China Shipbuilding Industry Co Diesel Engine Co Ltd 9X92-B-HPSCR	4.3	A
194	MSC LINZIE IMO 9987354	16,000 TEU	2025	366 m	8G95ME-C10-GI	4.3	A
197	MSC CRAPOLLA IMO 9963621	15,600 TEU	2025	368 m	9G95ME-C10-GI	4.3	A
196	ONE FORTUNE IMO 9944819	15,000 TEU	2024	366 m	8G95ME-C10-EGRTC	4.3	A
195	ONE FOREVER IMO 9944807	15,000 TEU	2024	366 m	8G95ME-C10	4.3	A
193	MARIE MAERSK IMO 9619933	18,270 TEU	2011	399 m	Doosan - 8S80ME-C MK9.2	4.3	A
200	MSC CLAUDE GIRARDET IMO 9936628	271,957	2023	400 m	UnKnown 11X92	4.3	A
199	OOCL SPAIN IMO 9908126	24,000 TEU	2020	400 m	HSD Engine Co Ltd - South Korea 12X92	4.3	A
198	MSC IRINA IMO 9929429	24,100 TEU	2023	400 m	UnKnown 11X92	4.3	A

Page 4 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.