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)

#235 of 2,098 container ships

CO₂ intensity

4.8 g CO₂/dwt·nm

vs segment average (10.38)

-54% 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

1,080 at D/E

A 312B 414C 704D 601E 479

2,510 rated vessels · 442 of the D/E set dock within 12 months

Docking pipeline — D/E vessels per quarter

'27 Q1

'27 Q2

'27 Q3

'27 Q4

114

'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	1,539	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

630

D/E vessels with at least one eligible measure

€3,281–7,757M

capex range, top measure per vessel (630 of 630 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

2,076

vessels ranked

2.25

greenest (g CO₂/dwt·nm)

8.4

segment median

#	Vessel	Size (TEU)	Built	Length	Main Engine	Carbon intensity — AER (g CO₂/dwt·nm)	Grade
201	COSCO SHIPPING STAR IMO 9795658	21,000 TEU	2019	400 m	CSSC - 12S90ME-C10	4.7	A
199	MSC MINA IMO 9839260	22,000 TEU	2019	400 m	MAN - 11G95ME	4.7	A
204	EVER MERCY IMO 9935325	15,500 TEU	2024	366 m	WinGD 9X92	4.7	A
203	MSC AMSTERDAM IMO 9606338	16,652 TEU	2015	399 m	STX - 12K98MC-C	4.7	A
205	MANILA MAERSK IMO 9780469	20,568 TEU	2018	399 m	Doosan - 7G80ME-C9	4.7	A
207	COSCO HOPE IMO 9472165	13,092 TEU	2012	366 m	Hyundai - 12 K98MC	4.7	A
206	COSCO SHIPPING LEO IMO 9783502	20,000 TEU	2018	400 m	CSSC - 11S90ME-C10	4.7	A
210	MOGENS MAERSK IMO 9632090	18,270 TEU	2014	399 m	Doosan - 7S80ME-C	4.7	A
209	CHARLESTON EXPRESS IMO 9665645	13,800 TEU	2014	368 m	MAN - 11S90ME-C9	4.7	A
208	MARY MAERSK IMO 9619921	18,270 TEU	2013	399 m	Doosan - 8S80ME-C MK9.2	4.7	A
211	MAERSK EL PALOMAR IMO 9964481	13,000 TEU	2024	335 m	MAN-B&W 9G95ME-C10	4.7	A
213	MAYVIEW MAERSK IMO 9619995	18,270 TEU	2014	399 m	Doosan - 8S80ME-C MK9.2 TIER II	4.7	A
212	MARSTAL MAERSK IMO 9619971	18,270 TEU	2014	399 m	Doosan - 8S80ME-C MK9.2	4.7	A
215	COSCO SHIPPING NEBULA IMO 9795622	21,000 TEU	2018	400 m	CSSC - 12S90ME-C10	4.7	A
217	CMA CGM BIG SUR IMO 9938169	15,000 TEU	2024	366 m	Wärtsilä - 10X92DF	4.7	A
214	COSCO SHIPPING SOLAR IMO 9795646	21,000 TEU	2019	400 m	CSSC - 12S90ME-C10	4.7	A
218	ZEUS LUMOS IMO 9864239	15,000 TEU	2021	366 m	Wärtsilä - 10X92	4.7	A
216	MAERSK CANDOR IMO 9924223	15,500 TEU	2022	366 m	MAN - 9G95ME-C10	4.7	A
221	MSC MARA IMO 9932892	15,600 TEU	2023	364 m	Hyundai Heavy Industries Co Ltd - South Korea 8X92-B	4.8	A
220	MAERSK CAMBRIDGE IMO 9924182	15,500 TEU	2022	366 m	MAN - 9G95ME-C10	4.8	A
219	CMA CGM UNITY IMO 9897767	15,128 TEU	2021	366 m	Hyundai Heavy Industries Co Ltd - South Korea 11G90ME-C10-GI-EGRTC	4.8	A
224	MAERSK CANYON IMO 9924235	15,500 TEU	2023	366 m	MAN - 9G95ME-C10	4.8	A
223	EVER ART IMO 9893943	23,764 TEU	2022	400 m	Wartsila-Hyundai Engine Co. Ltd. 11X92-B	4.8	A
225	MAERSK CLEVELAND IMO 9936408	15,500 TEU	2023	366 m	UnKnown 8G95ME-C10	4.8	A
222	MAERSK HALIFAX IMO 9784271	15,282 TEU	2017	368 m	Hyundai - 8G95ME-C9	4.8	A
226	CMA CGM GRACE BAY IMO 9938145	15,000 TEU	2024	366 m	Wärtsilä - 10X92DF	4.8	A
228	MERETE MAERSK IMO 9632064	18,270 TEU	2014	399 m	Doosan - 7S80ME-C	4.8	A
227	MAERSK CAMDEN IMO 9924194	15,500 TEU	2022	366 m	MAN - 9G95ME-C10	4.8	A
229	MSC SAMAR IMO 9839442	22,000 TEU	2019	400 m	MAN - 11G95ME	4.8	A
230	MSC MICHELLE IMO 9897016	23,656 TEU	2021	400 m	Doosan - 9L32/40CD	4.8	A
231	SAN LORENZO MAERSK IMO 9622227	9,669 TEU	2011	333 m	HHI - 7S90-C9.2	4.8	A
233	MSC JADE IMO 9762326	17,664 TEU	2016	398 m	Doosan - 11G95ME-C9	4.8	A
232	LOS ANGELES EXPRESS IMO 9665633	13,800 TEU	2014	368 m	MAN - 11S90ME-C9	4.8	A
234	MSC SOLA IMO 9401104	11,300 TEU	2008	364 m	MAN - 12K98ME	4.8	A
236	EVER MASS IMO 9935234	15,000 TEU	2024	366 m	WinGD 9X92	4.8	A
235	MADRID MAERSK IMO 9778791	20,568 TEU	2017	399 m	Doosan - 7G80ME-C9	4.8	A
237	MSC ARINA IMO 9839284	22,000 TEU	2019	400 m	MAN - 11G95ME-C9	4.8	A
240	SAN ANTONIO MAERSK IMO 9622241	9,669 TEU	2014	333 m	HHI - 7S90-C9.2	4.8	A
239	MAERSK MC-KINNEY MOLLER IMO 9619907	18,270 TEU	2013	399 m	Doosan - 8S80ME-C MK9.2	4.8	A
241	CMA CGM GALAPAGOS IMO 9894997	15,000 TEU	2022	366 m	Wärtsilä - 10X92DF	4.8	A
238	MSC SOFIA IMO 9927275	14,812 TEU	2023	366 m	Hyundai Heavy Industries Co Ltd - South Korea 11G90ME-C10-GI	4.8	A
242	MSC NELA IMO 9839296	22,000 TEU	2019	400 m	MAN - 11G95ME	4.8	A
244	ALETTE MAERSK IMO 9948774	16,592 TEU	2024	351 m	Hyundai Heavy Industries Co Ltd - South Korea 8G95ME-C10-LGIM	4.8	A
243	MSC MIA IMO 9839466	22,000 TEU	2019	400 m	MAN - 11G95ME	4.8	A
245	MSC DIANA IMO 9755933	17,590 TEU	2016	400 m	Doosan - 11G95ME-C9	4.8	A
250	MSC AMELIA IMO 9896995	23,656 TEU	2021	400 m	Doosan - 9L32/40CD	4.8	A
249	COSCO SHIPPING TAURUS IMO 9783459	17,327 TEU	2018	400 m	CSSC - 11S90ME-C10	4.8	A
248	MSC AURIGA IMO 9857183	15,000 TEU	2020	366 m	Wärtsilä - 8X92	4.8	A
247	COSCO SHIPPING SCORPIO IMO 9789635	19,000 TEU	2018	400 m	MAN - 11S90ME-C10	4.8	A
246	MSC LONDON IMO 9606302	16,652 TEU	2014	399 m	STX - 12K98MC-C	4.8	A

Page 5 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.