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.
CII band distribution
1,080 at D/E2,510 rated vessels · 553 of the D/E set dock within 12 months
Docking pipeline — D/E vessels per quarter
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 | 1,612 | 1–3% | €80k–250k | — | vendor claim |
| Propeller redesign / replacement | 1,443 | 5–10% | €400k–1,200k | — | vendor claim |
| Bulbous bow reprofiling | 1,346 | 2–6% | €300k–900k | — | vendor claim |
| Methanol dual-fuel conversion | 903 | 5–15% | €8,000k–20,000k | — | vendor claim |
| LNG dual-fuel conversion | 744 | 15–25% | €15,000k–35,000k | — | vendor claim |
| Shaft generator / PTO | 370 | 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
Retrofit prospects — worst band first
| Vessel | Band | Age | Drop year |
|---|---|---|---|
| HANSA AFRICA · 25-60k | E | 16y | 2026 |
| MSC ANNAMARIA · <25k | E | 1y | 2026 |
| SEPELU · <25k | E | 26y | 2026 |
| MSC SABRINA III · <25k | E | 37y | 2026 |
| C LION · 100-200k | E | 21y | 2026 |
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.
| # | Vessel | Size (TEU) | Built | Carbon intensity — AER (g CO₂/dwt·nm) | Grade |
|---|---|---|---|---|---|
| 451 |
CAP SAN ARTEMISSIO
IMO 9633939
|
9,600 TEU | 2014 |
5.9
|
B |
| 454 |
CMA CGM ZHENG HE
IMO 9706906
|
17,859 TEU | 2015 |
5.9
|
B |
| 453 |
LUDWIGSHAFEN EXPRESS
IMO 9613018
|
13,167 TEU | 2014 |
5.9
|
B |
| 452 |
TOLEDO TRIUMPH
IMO 9737486
|
13,870 TEU | 2017 |
5.9
|
B |
| 455 |
CMA CGM JULES VERNE
IMO 9454450
|
16,000 TEU | 2013 |
5.9
|
B |
| 457 |
CAP SAN LAZARO
IMO 9717216
|
10,600 TEU | 2015 |
5.9
|
B |
| 456 |
MSC ARIANE
IMO 9484443
|
13,050 TEU | 2012 |
5.9
|
B |
| 458 |
MSC ALTAIR
IMO 9465277
|
13,102 TEU | 2012 |
5.9
|
B |
| 460 |
MSC BEIJING
IMO 9289099
|
8,089 TEU | 2005 |
5.9
|
B |
| 459 |
MSC CAROLE
IMO 9785445
|
12,200 TEU | 2021 |
5.9
|
B |
| 461 |
CSCL PACIFIC OCEAN
IMO 9695133
|
18,982 TEU | 2014 |
5.9
|
B |
| 463 |
MSC INGY
IMO 9755945
|
19,472 TEU | 2016 |
5.9
|
B |
| 465 |
COSCO ENGLAND
IMO 9516428
|
13,360 TEU | 2013 |
5.9
|
B |
| 462 |
COSCO DENMARK
IMO 9516478
|
13,360 TEU | 2014 |
5.9
|
B |
| 464 |
NYK VEGA
IMO 9312781
|
9,012 TEU | 2006 |
5.9
|
B |
| 466 |
MSC DANIELA
IMO 9399002
|
13,798 TEU | 2008 |
6.0
|
B |
| 467 |
MSC SIYA B
IMO 9793947
|
11,800 TEU | 2018 |
6.0
|
B |
| 468 |
MSC RAPALLO
IMO 9484455
|
13,050 TEU | 2011 |
6.0
|
B |
| 469 |
MSC BERYL
IMO 9467392
|
12,400 TEU | 2010 |
6.0
|
B |
| 470 |
CAP SAN JUAN
IMO 9717204
|
10,600 TEU | 2015 |
6.0
|
B |
| 471 |
ELEONORA MAERSK
IMO 9321500
|
11,000 TEU | 2007 |
6.0
|
B |
| 474 |
TOLTEN
IMO 9612870
|
8,004 TEU | 2012 |
6.0
|
B |
| 473 |
MSC BENEDETTA XIII
IMO 9465253
|
13,102 TEU | 2011 |
6.0
|
B |
| 472 |
CCNI ANGOL
IMO 9683867
|
9,030 TEU | 2015 |
6.0
|
B |
| 475 |
MSC CLORINDA
IMO 9484429
|
14,036 TEU | 2012 |
6.0
|
B |
| 477 |
NAGOYA EXPRESS
IMO 9450428
|
8,749 TEU | 2010 |
6.0
|
B |
| 476 |
MAERSK CUNENE
IMO 9561485
|
4,496 TEU | 2008 |
6.0
|
B |
| 478 |
LAEM CHABANG EXPRESS
IMO 9768007
|
10,100 TEU | 2018 |
6.0
|
B |
| 479 |
HAIPHONG EXPRESS
IMO 9778129
|
10,100 TEU | 2018 |
6.0
|
B |
| 482 |
HYUNDAI FAITH
IMO 9347554
|
8,600 TEU | 2008 |
6.0
|
B |
| 481 |
EVER TOP
IMO 9665619
|
13,806 TEU | 2014 |
6.0
|
B |
| 480 |
EVER FAME
IMO 9850800
|
11,888 TEU | 2015 |
6.0
|
B |
| 483 |
CMA CGM VOLGA
IMO 9705081
|
9,200 TEU | 2015 |
6.0
|
B |
| 484 |
MSC MADELEINE
IMO 9305702
|
9,113 TEU | 2006 |
6.0
|
B |
| 485 |
MSC ADONIS
IMO 9706310
|
9,288 TEU | 2015 |
6.0
|
B |
| 486 |
ULSAN EXPRESS
IMO 9613020
|
13,167 TEU | 2014 |
6.0
|
B |
| 488 |
CAPE AKRITAS
IMO 9706190
|
11,010 TEU | 2016 |
6.0
|
B |
| 487 |
MSC CRISTINA
IMO 9465241
|
13,102 TEU | 2011 |
6.0
|
B |
| 489 |
MAERSK FLORENCE
IMO 9969053
|
5,800 TEU | 2024 |
6.1
|
B |
| 491 |
MSC MAGNUM VII
IMO 9252541
|
6,732 TEU | 2003 |
6.1
|
B |
| 490 |
KLEVEN
IMO 9085546
|
6,418 TEU | 1996 |
6.1
|
B |
| 497 |
ZIM JADE
IMO 9968059
|
7,000 TEU | 2024 |
6.1
|
B |
| 499 |
ONE READINESS
IMO 9952684
|
7,000 TEU | 2023 |
6.1
|
B |
| 498 |
EMMA MAERSK
IMO 9321483
|
11,000 TEU | 2006 |
6.1
|
B |
| 496 |
MUNDRA EXPRESS
IMO 9408865
|
9,954 TEU | 2011 |
6.1
|
B |
| 495 |
TENO
IMO 9447859
|
8,004 TEU | 2011 |
6.1
|
B |
| 494 |
CAP SAN MALEAS
IMO 9633941
|
9,600 TEU | 2014 |
6.1
|
B |
| 493 |
ONE RESILIENCE
IMO 9952751
|
7,000 TEU | 2024 |
6.1
|
B |
| 492 |
CAP SAN SOUNIO
IMO 9633953
|
9,600 TEU | 2014 |
6.1
|
B |
| 500 |
HYUNDAI PLATINUM
IMO 9637155
|
5,000 TEU | 2013 |
6.1
|
B |
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.
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.