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 · 223 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) | 752 | route-dependent | €1,500k–3,500k | — | vendor claim |
| Suction wing sails (per unit) | 752 | route-dependent | €1,000k–2,500k | — | vendor claim |
| Turbocharger cut-out | 648 | 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 |
|---|---|---|---|---|---|
| 1 |
YONG XING
IMO 9930911
|
61,642 | 2022 |
3.2
|
A |
| 2 |
MAITACA ARROW
IMO 9515228
|
73,296 | 2013 |
3.5
|
A |
| 3 |
GREEN PECEM
IMO 9976484
|
77,173 | 2024 |
3.6
|
A |
| 4 |
ZHONG YUAN HAI YUN KAI TUO
IMO 9837640
|
62,051 | 2018 |
3.6
|
A |
| 5 |
TANCHOU ARROW
IMO 9567740
|
73,296 | 2014 |
3.7
|
A |
| 6 |
AVOCET ARROW
IMO 9448255
|
62,823 | 2015 |
3.8
|
A |
| 7 |
COSCO SHIPPING TENG DA
IMO 9928932
|
61,645 | 2023 |
3.8
|
A |
| 8 |
TAI XING
IMO 9930909
|
61,711 | 2021 |
3.9
|
A |
| 9 |
OSPREY ARROW
IMO 9687174
|
62,841 | 2015 |
3.9
|
A |
| 10 |
TUJU ARROW
IMO 9443920
|
72,863 | 2010 |
3.9
|
A |
| 11 |
COSCO SHIPPING XING WANG
IMO 9872183
|
62,014 | 2020 |
4.0
|
A |
| 12 |
COSCO SHIPPING JIN XIU
IMO 9872169
|
62,003 | 2019 |
4.0
|
A |
| 13 |
LAWIN ARROW
IMO 9687162
|
62,841 | 2014 |
4.0
|
A |
| 14 |
COSCO SHIPPING CHANG SHENG
IMO 9928918
|
61,567 | 2022 |
4.0
|
A |
| 15 |
DELOS DAWN
IMO 9363675
|
52,224 | 2008 |
4.0
|
A |
| 16 |
DEVBULK GULTEN
IMO 9659189
|
40,614 | 2013 |
4.1
|
A |
| 17 |
PILECKI
IMO 9931563
|
61,747 | 2022 |
4.1
|
A |
| 18 |
DUNNII
IMO 9824978
|
62,346 | 2019 |
4.1
|
A |
| 19 |
HERBERT
IMO 9931551
|
61,762 | 2022 |
4.1
|
A |
| 20 |
SSI ENDEAVOUR
IMO 9883053
|
37,910 | 2020 |
4.1
|
A |
| 21 |
PACIFIC VITALITY
IMO 9913236
|
61,670 | 2022 |
4.1
|
A |
| 22 |
COSCO SHIPPING VISION
IMO 9881677
|
61,942 | 2021 |
4.1
|
A |
| 23 |
COSCO SHIPPING PENG CHENG
IMO 9872195
|
62,002 | 2020 |
4.1
|
A |
| 25 |
JETOUR
IMO 9317377
|
54,881 | 2006 |
4.1
|
A |
| 24 |
ROBUSTA
IMO 9824992
|
62,361 | 2019 |
4.1
|
A |
| 26 |
COSCO SHIPPING WISDOM
IMO 9928889
|
61,570 | 2022 |
4.2
|
A |
| 27 |
MACAW ARROW
IMO 9566617
|
73,296 | 2014 |
4.2
|
A |
| 28 |
YU AN
IMO 9990167
|
61,468 | 2023 |
4.2
|
A |
| 30 |
SAGA FLORA
IMO 9502348
|
55,807 | 2018 |
4.2
|
A |
| 29 |
THOR FEARLESS
IMO 9317341
|
54,881 | 2005 |
4.2
|
A |
| 32 |
BC PISTI
IMO 9851359
|
39,287 | 2019 |
4.2
|
A |
| 31 |
COSCO SHIPPING GLORY
IMO 9881641
|
61,962 | 2020 |
4.2
|
A |
| 33 |
TUNA S
IMO 9779032
|
38,575 | 2019 |
4.2
|
A |
| 34 |
MISAGO ARROW
IMO 9448243
|
62,823 | 2015 |
4.2
|
A |
| 35 |
EAGLE ARROW
IMO 9529592
|
62,967 | 2011 |
4.3
|
A |
| 36 |
COSCO SHIPPING ZHUO YUE
IMO 9872157
|
61,991 | 2019 |
4.3
|
A |
| 37 |
EMMA JANNEKE
IMO 9992256
|
39,974 | 2024 |
4.3
|
A |
| 38 |
SAGA FANTASY
IMO 9658953
|
55,973 | 2013 |
4.3
|
A |
| 39 |
COSCO SHIPPING CHANG QING
IMO 9872171
|
62,001 | 2020 |
4.3
|
A |
| 40 |
PIPIT ARROW
IMO 9552898
|
62,980 | 2012 |
4.3
|
A |
| 41 |
COSCO SHIPPING FOUNTAIN
IMO 9928891
|
61,495 | 2022 |
4.3
|
A |
| 42 |
SALIGNA
IMO 9825001
|
62,358 | 2019 |
4.3
|
A |
| 43 |
COSCO SHIPPING SINCERE
IMO 9928877
|
61,641 | 2022 |
4.4
|
A |
| 44 |
DEVBULK SARE
IMO 9544152
|
40,445 | 2012 |
4.4
|
A |
| 45 |
DELTA PEARL
IMO 9401831
|
52,341 | 2009 |
4.4
|
A |
| 46 |
SAGA FUJI
IMO 9609457
|
55,973 | 2013 |
4.4
|
A |
| 47 |
SAGA FRAM
IMO 9613874
|
54,930 | 2013 |
4.4
|
A |
| 48 |
OKIANA
IMO 9253868
|
57,599 | 2004 |
4.4
|
A |
| 50 |
DEVBULK DAMLA
IMO 9711717
|
37,322 | 2015 |
4.4
|
A |
| 49 |
PELICAN ARROW
IMO 9495923
|
62,942 | 2006 |
4.4
|
A |
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.