General Cargo 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
509 at D/E2,735 rated vessels · 274 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 |
|---|---|---|---|---|---|
| Propeller redesign / replacement | 1,462 | 5–10% | €400k–1,200k | — | vendor claim |
| Rotor sails (per unit) | 763 | route-dependent | €1,500k–3,500k | — | vendor claim |
| Suction wing sails (per unit) | 763 | route-dependent | €1,000k–2,500k | — | vendor claim |
| Turbocharger cut-out | 659 | 1–3% | €80k–250k | — | vendor claim |
| Bulbous bow reprofiling | 566 | 2–6% | €300k–900k | — | vendor claim |
| Shaft generator / PTO | 97 | 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 |
|---|---|---|---|
| KOKODA CHIEF · <25k | E | 15y | 2026 |
| CLAUDIO CUCCO · <25k | E | 40y | 2026 |
| GINO CUCCO · <25k | E | 39y | 2026 |
| GIUSEPPE CUCCO · <25k | E | 49y | 2026 |
| LADY OF CHICHESTER · <25k | E | 56y | 2026 |
| # | Vessel | Size (DWT) | Built | Carbon intensity — AER (g CO₂/dwt·nm) | Grade |
|---|---|---|---|---|---|
| 601 |
HALISDEMIR
IMO 9517331
|
7,394 | 2008 |
11.0
|
C |
| 602 |
SAADET
IMO 9522063
|
12,198 | 2009 |
11.0
|
C |
| 603 |
SEAHORSE
IMO 9159000
|
8,474 | 1997 |
11.1
|
C |
| 604 |
OMAYA
IMO 8408648
|
8,875 | 1984 |
11.1
|
C |
| 605 |
DA XIANG
IMO 9768552
|
28,577 | 2017 |
11.1
|
C |
| 606 |
HELME
IMO 9504140
|
11,023 | 2011 |
11.1
|
C |
| 607 |
NAVIN HAWK
IMO 9522738
|
7,959 | 2009 |
11.1
|
C |
| 608 |
OCEAN FORCE
IMO 8821814
|
12,150 | 1990 |
11.1
|
C |
| 609 |
SEHER YAGCI
IMO 9556911
|
10,450 | 2009 |
11.1
|
C |
| 610 |
MUZAFFER ANA
IMO 9554157
|
12,447 | 2010 |
11.1
|
C |
| 611 |
AVONBORG
IMO 9466362
|
17,294 | 2012 |
11.1
|
C |
| 612 |
KC MERMAID
IMO 9505156
|
7,184 | 2021 |
11.2
|
C |
| 613 |
BOZKURT
IMO 9171371
|
9,861 | 2000 |
11.2
|
C |
| 614 |
TRINITYBORG
IMO 9546485
|
21,277 | 2013 |
11.2
|
C |
| 615 |
BBC ODESA
IMO 9963413
|
12,422 | 2023 |
11.2
|
C |
| 616 |
NAVIN FALCON
IMO 9492933
|
7,933 | 2008 |
11.2
|
C |
| 617 |
YASMINA
IMO 9177765
|
13,347 | 1998 |
11.2
|
C |
| 618 |
ABILITY
IMO 9145645
|
17,440 | 1998 |
11.3
|
C |
| 619 |
BRUCE
IMO 9741140
|
12,300 | 2016 |
11.3
|
C |
| 620 |
CHELSEA-3
IMO 9361392
|
5,827 | 2006 |
11.4
|
C |
| 621 |
NURI SONAY
IMO 9310202
|
14,888 | 2006 |
11.4
|
C |
| 622 |
ERNA SU
IMO 9037290
|
10,776 | 2002 |
11.4
|
C |
| 623 |
YM EVEREST
IMO 9653812
|
16,717 | 2014 |
11.4
|
C |
| 624 |
UAL CASTLE
IMO 9626168
|
11,183 | 2013 |
11.4
|
C |
| 625 |
CAPTAIN GRIGORIY VOVCHUK
IMO 9504279
|
9,347 | 2010 |
11.4
|
C |
| 626 |
EEBORG
IMO 9568328
|
11,901 | 2012 |
11.5
|
C |
| 627 |
ONEGO ISLE
IMO 9626156
|
11,183 | 2012 |
11.5
|
C |
| 628 |
LUCKY
IMO 9037305
|
10,605 | 2002 |
11.5
|
C |
| 629 |
HIZIR
IMO 9396529
|
8,128 | 2007 |
11.5
|
C |
| 630 |
THAMESBORG
IMO 9546459
|
21,359 | 2013 |
11.5
|
C |
| 631 |
EDELSTEIN
IMO 9159581
|
10,763 | 1997 |
11.5
|
C |
| 632 |
GRIT CEMENT III
IMO 9116515
|
16,325 | 1996 |
11.6
|
C |
| 633 |
CHELSEA-7
IMO 9492634
|
6,320 | 2010 |
11.6
|
C |
| 634 |
ADNAN N
IMO 9334973
|
11,776 | 2006 |
11.6
|
C |
| 635 |
ARKLOW ACE
IMO 9851957
|
8,543 | 2020 |
11.6
|
C |
| 636 |
ALEXIA
IMO 9997282
|
14,404 | 2024 |
11.6
|
C |
| 637 |
PACIFIC FORTITUDE
IMO 9381392
|
12,740 | 2007 |
11.6
|
C |
| 638 |
HAMBURG.S
IMO 9071650
|
10,560 | 1993 |
11.6
|
C |
| 639 |
K HAK
IMO 9532848
|
12,647 | 2009 |
11.6
|
C |
| 640 |
ARAGONBORG
IMO 9466312
|
17,294 | 2010 |
11.6
|
C |
| 641 |
LONGWAVE
IMO 9693109
|
10,713 | 2015 |
11.6
|
C |
| 642 |
AMAZONEBORG
IMO 9333541
|
17,355 | 2007 |
11.7
|
C |
| 643 |
CONDOR VALPARAISO
IMO 9473224
|
17,257 | 2011 |
11.7
|
C |
| 644 |
AK DISCOVERY
IMO 9218208
|
8,676 | 2001 |
11.7
|
C |
| 645 |
ABK EAGLE
IMO 9217462
|
14,026 | 1999 |
11.7
|
C |
| 646 |
LARISSA 1
IMO 9154268
|
17,064 | 1999 |
11.7
|
C |
| 647 |
KALLIO
IMO 9319064
|
21,353 | 2006 |
11.7
|
C |
| 648 |
VECTIS PRIDE
IMO 9626132
|
11,183 | 2012 |
11.7
|
C |
| 649 |
FWN SPACE
IMO 9735232
|
10,546 | 2018 |
11.8
|
C |
| 650 |
ABOUDI D
IMO 9385817
|
8,759 | 2007 |
11.8
|
C |
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.