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 · 632 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 | 4,883 | 5–10% | €400k–1,200k | — | vendor claim |
| Bulbous bow reprofiling | 4,833 | 2–6% | €300k–900k | — | vendor claim |
| Turbocharger cut-out | 3,728 | 1–3% | €80k–250k | — | vendor claim |
| Rotor sails (per unit) | 3,512 | route-dependent | €1,500k–3,500k | — | vendor claim |
| Suction wing sails (per unit) | 3,512 | route-dependent | €1,000k–2,500k | — | vendor claim |
| Methanol dual-fuel conversion | 2,973 | 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 |
|---|---|---|---|---|---|
| 1851 |
BONAS
IMO 9401972
|
51,687 | 2010 |
4.7
|
C |
| 1852 |
AROMO
IMO 9883144
|
37,927 | 2020 |
4.7
|
C |
| 1853 |
NEW EXCELLENCE
IMO 9502594
|
79,449 | 2014 |
4.7
|
C |
| 1854 |
CLIPPER BARI-STAR
IMO 9792711
|
37,976 | 2023 |
4.7
|
C |
| 1855 |
CELESTIAL BLUE
IMO 9885439
|
61,197 | 2020 |
4.7
|
C |
| 1856 |
EVA SUNRISE
IMO 9932141
|
40,281 | 2022 |
4.7
|
C |
| 1857 |
BULK FRIENDSHIP
IMO 9496977
|
58,738 | 2011 |
4.7
|
C |
| 1858 |
SEA STAR 74
IMO 9109378
|
46,638 | 1995 |
4.7
|
C |
| 1859 |
BUBBA BOOSH
IMO 9674218
|
55,464 | 2014 |
4.7
|
C |
| 1860 |
FEDERAL LYRA
IMO 9668063
|
55,725 | 2014 |
4.7
|
C |
| 1861 |
ELEOUSSA
IMO 9323900
|
56,678 | 2008 |
4.7
|
C |
| 1862 |
BIWA ARROW
IMO 9687095
|
55,978 | 2014 |
4.7
|
C |
| 1863 |
CK BLUEBELL
IMO 9595876
|
80,961 | 2011 |
4.7
|
C |
| 1864 |
BUNUN YOUTH
IMO 9959319
|
39,703 | 2023 |
4.7
|
C |
| 1865 |
ORIOLE
IMO 9441374
|
57,809 | 2011 |
4.7
|
C |
| 1866 |
PACIFIC FRIEDA
IMO 9274939
|
52,498 | 2005 |
4.7
|
C |
| 1867 |
ASL IXORA
IMO 9448229
|
61,470 | 2012 |
4.7
|
C |
| 1868 |
FEDERAL FRASER
IMO 9866744
|
34,492 | 2021 |
4.7
|
C |
| 1869 |
FAUN
IMO 9748239
|
63,592 | 2015 |
4.7
|
C |
| 1870 |
BUNUN JUSTICE
IMO 9732448
|
37,748 | 2017 |
4.7
|
C |
| 1871 |
BBG LEADER
IMO 9704843
|
63,241 | 2015 |
4.7
|
C |
| 1872 |
SEADUTY
IMO 9392432
|
82,449 | 2008 |
4.7
|
C |
| 1873 |
GREENER
IMO 9618616
|
56,621 | 2013 |
4.7
|
C |
| 1874 |
CURIA
IMO 9710048
|
57,559 | 2015 |
4.7
|
C |
| 1875 |
SHENG HENG HAI
IMO 9505493
|
56,649 | 2013 |
4.7
|
C |
| 1876 |
TRAMP LADY
IMO 9286621
|
76,294 | 2005 |
4.7
|
C |
| 1877 |
BERN
IMO 9276171
|
76,878 | 2004 |
4.7
|
C |
| 1878 |
JPS AFRODITI
IMO 9763980
|
57,523 | 2016 |
4.7
|
C |
| 1879 |
ASTRA N
IMO 9476290
|
55,762 | 2010 |
4.7
|
C |
| 1880 |
OCEAN DESTINY
IMO 9485045
|
55,848 | 2011 |
4.7
|
C |
| 1881 |
AFRICAN CHEETAH
IMO 9636462
|
66,582 | 2014 |
4.7
|
C |
| 1882 |
JNS RIVER
IMO 1045227
|
40,503 | 2024 |
4.7
|
C |
| 1883 |
IVS ATSUGI
IMO 9838527
|
62,661 | 2020 |
4.7
|
C |
| 1884 |
SEACON BANGKOK
IMO 9991305
|
40,540 | 2024 |
4.7
|
C |
| 1885 |
ROSTRUM ANTARCTICA
IMO 9941611
|
40,076 | 2023 |
4.7
|
C |
| 1886 |
ORNAK
IMO 9452610
|
79,677 | 2010 |
4.7
|
C |
| 1887 |
IVY ALLIANCE
IMO 9473834
|
55,886 | 2011 |
4.7
|
C |
| 1888 |
BBG NOVA
IMO 9705342
|
63,313 | 2016 |
4.7
|
C |
| 1889 |
BULK GUATEMALA
IMO 9642227
|
61,446 | 2013 |
4.7
|
C |
| 1890 |
NORDIC BC KIEL
IMO 9478573
|
55,947 | 2010 |
4.7
|
C |
| 1891 |
SHUN FU WANG
IMO 9244788
|
75,966 | 2002 |
4.7
|
C |
| 1892 |
ULTRA ALPHA
IMO 9700328
|
63,203 | 2015 |
4.7
|
C |
| 1893 |
NORDMOSEL
IMO 9741877
|
39,968 | 2017 |
4.7
|
C |
| 1894 |
MARMOR
IMO 9595149
|
38,464 | 2012 |
4.7
|
C |
| 1895 |
ROSTRUM ASIA
IMO 9910349
|
40,003 | 2021 |
4.7
|
C |
| 1896 |
AL WATHBA
IMO 9663233
|
63,672 | 2013 |
4.7
|
C |
| 1897 |
BLACK PEARL
IMO 9579743
|
78,890 | 2012 |
4.7
|
C |
| 1898 |
SHENG NING HAI
IMO 9663180
|
56,716 | 2014 |
4.8
|
C |
| 1899 |
INDIGO BREEZE
IMO 9760160
|
60,430 | 2017 |
4.8
|
C |
| 1900 |
ELECTRA
IMO 9661223
|
87,150 | 2013 |
4.8
|
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.