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 · 271 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) | 756 | route-dependent | €1,500k–3,500k | — | vendor claim |
| Suction wing sails (per unit) | 756 | route-dependent | €1,000k–2,500k | — | vendor claim |
| Turbocharger cut-out | 652 | 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 |
|---|---|---|---|---|---|
| 1001 |
WILSON NEWPORT
IMO 9430985
|
8,691 | 2011 |
15.7
|
E |
| 1002 |
MORGENSTOND II
IMO 9367073
|
12,102 | 2007 |
15.7
|
E |
| 1003 |
DONGEBORG
IMO 9163697
|
8,832 | 1999 |
15.7
|
E |
| 1004 |
ANNIE
IMO 9468097
|
12,654 | 2010 |
15.7
|
E |
| 1005 |
WILSON NORFOLK
IMO 9430997
|
8,683 | 2011 |
15.7
|
E |
| 1006 |
SMALAND
IMO 9277321
|
7,701 | 2004 |
15.7
|
E |
| 1007 |
HC EVA MARIE
IMO 9369071
|
11,121 | 2007 |
15.8
|
E |
| 1008 |
ROZ Y
IMO 9499931
|
8,811 | 2008 |
15.8
|
E |
| 1009 |
HADELAND
IMO 9505601
|
9,692 | 2011 |
15.8
|
E |
| 1010 |
DONAU
IMO 9385908
|
8,267 | 2011 |
15.8
|
E |
| 1011 |
ST.MARIA
IMO 9467134
|
19,404 | 2011 |
15.8
|
E |
| 1012 |
WILSON NICE
IMO 9430959
|
8,689 | 2010 |
15.9
|
E |
| 1013 |
HUDSONGRACHT
IMO 9433262
|
12,709 | 2008 |
15.9
|
E |
| 1014 |
AZOV CONFIDENCE
IMO 9372602
|
10,255 | 2007 |
15.9
|
E |
| 1015 |
ONEGO TRADER
IMO 9238351
|
8,930 | 2001 |
15.9
|
E |
| 1016 |
MARIETJE NORA
IMO 9481609
|
9,068 | 2015 |
15.9
|
E |
| 1017 |
MARIETJE MARSILLA
IMO 9458248
|
8,491 | 2010 |
15.9
|
E |
| 1018 |
MAGOTHY
IMO 9418975
|
19,397 | 2009 |
15.9
|
E |
| 1019 |
KARSOY
IMO 9555618
|
10,563 | 2009 |
15.9
|
E |
| 1020 |
LYSVIK SEAWAYS
IMO 9144251
|
7,500 | 1998 |
15.9
|
E |
| 1021 |
HEERENGRACHT
IMO 9435753
|
12,678 | 2009 |
15.9
|
E |
| 1022 |
FLORIJNGRACHT
IMO 9428413
|
12,200 | 2010 |
15.9
|
E |
| 1023 |
MEROVING
IMO 9453614
|
7,224 | 2009 |
15.9
|
E |
| 1024 |
MOEZELBORG
IMO 9180839
|
9,200 | 1999 |
15.9
|
E |
| 1025 |
MORNING TIDE
IMO 9320506
|
12,008 | 2006 |
16.0
|
E |
| 1026 |
LILA MOMBASA
IMO 9235359
|
30,530 | 2003 |
16.0
|
E |
| 1027 |
HC OPAL
IMO 9377846
|
11,185 | 2010 |
16.0
|
E |
| 1028 |
ARNE
IMO 9142564
|
9,678 | 1998 |
16.0
|
E |
| 1029 |
ICS SILVER LINING
IMO 9314351
|
12,578 | 2005 |
16.0
|
E |
| 1030 |
HAPPY RANGER
IMO 9139311
|
15,443 | 1998 |
16.1
|
E |
| 1031 |
LYSBRIS SEAWAYS
IMO 9144263
|
7,500 | 1999 |
16.1
|
E |
| 1032 |
FWN BONAFIDE
IMO 9321108
|
11,534 | 2006 |
16.1
|
E |
| 1033 |
BORE WAY
IMO 9892884
|
6,768 | 2022 |
16.1
|
E |
| 1034 |
LEMLAND
IMO 9415040
|
8,850 | 2009 |
16.2
|
E |
| 1035 |
NAVIN EAGLE
IMO 9485186
|
7,966 | 2008 |
16.2
|
E |
| 1036 |
PAUWGRACHT
IMO 9448308
|
19,328 | 2010 |
16.2
|
E |
| 1037 |
WARNOWBORG
IMO 9505572
|
9,648 | 2011 |
16.3
|
E |
| 1038 |
TALI
IMO 9173692
|
13,340 | 1998 |
16.3
|
E |
| 1039 |
KAREWOOD BRAVE
IMO 9281516
|
6,315 | 2006 |
16.3
|
E |
| 1040 |
CDRY WHITE
IMO 9365506
|
8,537 | 2010 |
16.4
|
E |
| 1041 |
ARIA VIBE
IMO 9004504
|
9,591 | 1992 |
16.4
|
E |
| 1042 |
POTTERSGRACHT
IMO 9424560
|
19,349 | 2010 |
16.4
|
E |
| 1043 |
AMELAND
IMO 9508794
|
8,398 | 2009 |
16.4
|
E |
| 1044 |
OPTIMA
IMO 9210244
|
9,022 | 2000 |
16.4
|
E |
| 1045 |
WILSON NORTH
IMO 9430947
|
8,691 | 2010 |
16.5
|
E |
| 1046 |
GALA
IMO 9304461
|
12,578 | 2005 |
16.5
|
E |
| 1047 |
EVITA
IMO 9381433
|
8,169 | 2009 |
16.5
|
E |
| 1048 |
PAN BOREAS
IMO 9488645
|
8,090 | 2008 |
16.5
|
E |
| 1049 |
SUA
IMO 9436276
|
7,502 | 2009 |
16.5
|
E |
| 1050 |
FLORAGRACHT
IMO 9509968
|
12,178 | 2011 |
16.5
|
E |
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.