Bulk Carrier 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
1,301 at D/E4,717 rated vessels · 628 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 | 4,904 | 5–10% | €400k–1,200k | — | vendor claim |
| Bulbous bow reprofiling | 4,854 | 2–6% | €300k–900k | — | vendor claim |
| Turbocharger cut-out | 3,788 | 1–3% | €80k–250k | — | vendor claim |
| Rotor sails (per unit) | 3,571 | route-dependent | €1,500k–3,500k | — | vendor claim |
| Suction wing sails (per unit) | 3,571 | route-dependent | €1,000k–2,500k | — | vendor claim |
| Methanol dual-fuel conversion | 2,985 | 5–15% | €8,000k–20,000k | — | 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 |
|---|---|---|---|
| STAITHES · 25-60k | E | 12y | 2026 |
| LANNA NAREE · 25-60k | E | 14y | 2026 |
| MAGNOLIA · 25-60k | E | 15y | 2026 |
| ASIAN PRIDE · 60-100k | E | 9y | 2026 |
| PERSEUS · 60-100k | E | 11y | 2026 |
| # | Vessel | Size (DWT) | Built | Carbon intensity — AER (g CO₂/dwt·nm) | Grade |
|---|---|---|---|---|---|
| 807 |
DUCHESS ROSARIO
IMO 9870458
|
81,999 | 2020 |
3.6
|
B |
| 806 |
REGINA OLDENDORFF
IMO 9535242
|
121,677 | 2011 |
3.6
|
B |
| 805 |
GCL LUXEMBOURG
IMO 9921843
|
82,310 | 2021 |
3.6
|
B |
| 804 |
KIRRY MANX
IMO 9934462
|
63,500 | 2022 |
3.6
|
B |
| 803 |
NORSE EVOLUTION
IMO 9964821
|
66,305 | 2023 |
3.6
|
B |
| 802 |
BIRTE OLDENDORFF
IMO 9448047
|
114,500 | 2010 |
3.6
|
B |
| 799 |
BRIGHT VENTURE
IMO 9868883
|
81,486 | 2020 |
3.6
|
B |
| 809 |
PROUD UNITY
IMO 9860659
|
63,481 | 2020 |
3.6
|
B |
| 808 |
SSI AURORA
IMO 9960239
|
63,728 | 2023 |
3.6
|
B |
| 810 |
ANADOLU S
IMO 9667758
|
52,199 | 2014 |
3.6
|
B |
| 812 |
AQUAHOLIC
IMO 9363089
|
83,730 | 2008 |
3.6
|
B |
| 811 |
ROYAL QUEST
IMO 9991238
|
63,564 | 2024 |
3.6
|
B |
| 815 |
KN BLOSSOM
IMO 9906300
|
82,032 | 2021 |
3.6
|
B |
| 814 |
MEGHNA PRINCESS
IMO 9805776
|
62,534 | 2019 |
3.6
|
B |
| 813 |
PETER OLDENDORFF
IMO 9464663
|
114,840 | 2012 |
3.6
|
B |
| 820 |
ALEXANDROS PETRAKIS
IMO 9442938
|
76,596 | 2008 |
3.6
|
B |
| 819 |
AMOY SUNNY
IMO 9342841
|
76,598 | 2006 |
3.6
|
B |
| 821 |
PONENTE
IMO 9351763
|
83,051 | 2006 |
3.6
|
B |
| 818 |
LUCKY GLORY 2
IMO 9335989
|
76,942 | 2006 |
3.6
|
B |
| 826 |
SAKIZAYA KALON
IMO 9749908
|
81,691 | 2017 |
3.6
|
B |
| 825 |
CENTURION GORYO
IMO 9965540
|
40,541 | 2024 |
3.6
|
B |
| 824 |
NORDIC OASIS
IMO 9727120
|
75,800 | 2016 |
3.6
|
B |
| 817 |
JOSCO GUIZHOU
IMO 9872468
|
61,307 | 2020 |
3.6
|
B |
| 823 |
RB ARIANA
IMO 9743980
|
81,346 | 2017 |
3.6
|
B |
| 822 |
CEDRIC OLDENDORFF
IMO 9591571
|
95,608 | 2011 |
3.6
|
B |
| 816 |
MSXT ATHENA
IMO 9835068
|
81,723 | 2018 |
3.6
|
B |
| 828 |
ZALIV
IMO 9935806
|
61,146 | 2021 |
3.6
|
B |
| 827 |
AOM FEDERICA
IMO 9870460
|
81,914 | 2020 |
3.6
|
B |
| 829 |
AKAKI
IMO 9591143
|
84,075 | 2013 |
3.6
|
B |
| 834 |
KENDRA OLDENDORFF
IMO 9849813
|
81,122 | 2019 |
3.6
|
B |
| 833 |
JABAL AR RAWDAH
IMO 9722041
|
63,292 | 2016 |
3.6
|
B |
| 832 |
CLARA INSIGNIA
IMO 9800427
|
61,300 | 2019 |
3.6
|
B |
| 839 |
TROODOS SUN
IMO 9698238
|
84,849 | 2016 |
3.6
|
B |
| 838 |
GREEN K-MAX 3
IMO 9838072
|
80,883 | 2020 |
3.6
|
B |
| 837 |
ASIA CONFIDENCE
IMO 9747297
|
81,129 | 2017 |
3.6
|
B |
| 836 |
VITAOCEAN
IMO 9470492
|
82,250 | 2013 |
3.6
|
B |
| 835 |
JAG AKSHAY
IMO 9706554
|
82,044 | 2016 |
3.6
|
B |
| 831 |
OCEAN GENOVA
IMO 9965473
|
64,187 | 2023 |
3.6
|
B |
| 830 |
REDMER OLDENDORFF
IMO 9463669
|
121,412 | 2011 |
3.6
|
B |
| 850 |
SILVA CONCORDIA
IMO 9908372
|
49,521 | 2021 |
3.7
|
B |
| 849 |
GREAT TRIUMPH
IMO 9733600
|
77,835 | 2015 |
3.7
|
B |
| 848 |
CEMTEX RENAISSANCE
IMO 9599119
|
98,681 | 2011 |
3.7
|
B |
| 847 |
ANDREAS JR
IMO 9949352
|
82,364 | 2023 |
3.7
|
B |
| 846 |
AGIOS MAKARIOS
IMO 9474709
|
80,929 | 2017 |
3.7
|
B |
| 845 |
STEFANOS
IMO 9719575
|
81,237 | 2017 |
3.7
|
B |
| 844 |
ROYAL LAUREL
IMO 9873163
|
81,962 | 2019 |
3.7
|
B |
| 843 |
BABY CASSIOPEIA
IMO 9478846
|
110,842 | 2012 |
3.7
|
B |
| 842 |
KM VANCOUVER
IMO 9767560
|
63,374 | 2013 |
3.7
|
B |
| 841 |
JI XIAN FENG
IMO 9523213
|
75,409 | 2012 |
3.7
|
B |
| 840 |
BULK CROATIA
IMO 9875020
|
81,621 | 2020 |
3.7
|
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.