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 2025. 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 · 519 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 | 3,664 | 1–3% | €80k–250k | — | vendor claim |
| Rotor sails (per unit) | 3,455 | route-dependent | €1,500k–3,500k | — | vendor claim |
| Suction wing sails (per unit) | 3,455 | 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 |
|---|---|---|---|---|---|
| 1751 |
LIGNUM NETWORK
IMO 9942811
|
64,171 | 2022 |
4.5
|
C |
| 1752 |
CETUS SPADE
IMO 9731406
|
43,343 | 2018 |
4.5
|
C |
| 1753 |
JERA
IMO 9610884
|
57,111 | 2012 |
4.5
|
C |
| 1754 |
DESERT CHALLENGER
IMO 9699842
|
61,146 | 2013 |
4.5
|
C |
| 1755 |
BUNUN XCEL
IMO 9959307
|
39,697 | 2023 |
4.5
|
C |
| 1756 |
REX
IMO 9575163
|
63,301 | 2012 |
4.5
|
C |
| 1757 |
CETUS ORCA
IMO 9670767
|
43,494 | 2015 |
4.5
|
C |
| 1758 |
TOMINI HARMONY
IMO 9718131
|
63,591 | 2015 |
4.5
|
C |
| 1759 |
SJ COLOMBO
IMO 9478511
|
55,989 | 2010 |
4.5
|
C |
| 1760 |
MAHA TANAYA
IMO 9591181
|
83,987 | 2013 |
4.5
|
C |
| 1761 |
BEATRICE
IMO 9430818
|
55,700 | 2009 |
4.5
|
C |
| 1762 |
ROTTERDAM PEARL V
IMO 9557135
|
58,000 | 2010 |
4.5
|
C |
| 1763 |
NORSE VERACRUZ
IMO 9972048
|
40,026 | 2024 |
4.5
|
C |
| 1764 |
SPRING OASIS
IMO 9666039
|
63,291 | 2014 |
4.5
|
C |
| 1765 |
EPTALOFOS
IMO 9343869
|
92,567 | 2007 |
4.5
|
C |
| 1766 |
EIHWAZ
IMO 9729544
|
63,166 | 2015 |
4.5
|
C |
| 1767 |
ZEA
IMO 9628087
|
81,425 | 2013 |
4.5
|
C |
| 1768 |
SKYFALL
IMO 9724752
|
63,057 | 2016 |
4.5
|
C |
| 1769 |
ROSTRUM AFRICA
IMO 9910363
|
40,010 | 2022 |
4.5
|
C |
| 1770 |
BULK SPIRIT
IMO 9355501
|
52,950 | 2009 |
4.5
|
C |
| 1771 |
MERCURY SKY
IMO 9796949
|
61,569 | 2017 |
4.5
|
C |
| 1772 |
STAR ROTTERDAM
IMO 9721994
|
63,629 | 2017 |
4.5
|
C |
| 1773 |
GUO HAI LIAN 665
IMO 9591492
|
75,492 | 2013 |
4.5
|
C |
| 1774 |
MEDI CABOTO
IMO 9806770
|
61,228 | 2017 |
4.5
|
C |
| 1775 |
PAVIDA NAREE
IMO 9649885
|
35,340 | 2018 |
4.5
|
C |
| 1776 |
HARMONY
IMO 9994802
|
39,928 | 2024 |
4.5
|
C |
| 1777 |
ASTRO MEROPE
IMO 9700196
|
63,628 | 2015 |
4.5
|
C |
| 1778 |
JABAL AL KAWR
IMO 9732943
|
63,581 | 2014 |
4.5
|
C |
| 1779 |
SHEERNESS
IMO 9991616
|
40,510 | 2025 |
4.5
|
C |
| 1780 |
OCEANLADY
IMO 9641364
|
56,715 | 2013 |
4.5
|
C |
| 1781 |
STELLA L
IMO 9500687
|
58,096 | 2012 |
4.5
|
C |
| 1782 |
CAPE GRECO
IMO 9481477
|
79,452 | 2006 |
4.5
|
C |
| 1783 |
CELESTIAL BLUE
IMO 9885439
|
61,197 | 2020 |
4.5
|
C |
| 1784 |
STAR APUS
IMO 9698795
|
63,123 | 2014 |
4.5
|
C |
| 1785 |
SEA EAGLE
IMO 9830135
|
40,079 | 2019 |
4.5
|
C |
| 1786 |
XIN HAI TONG 9
IMO 9741578
|
48,939 | 2015 |
4.5
|
C |
| 1787 |
HECTOR
IMO 9502635
|
75,200 | 2012 |
4.5
|
C |
| 1788 |
THOR MAGNHILD
IMO 9303041
|
56,023 | 2006 |
4.5
|
C |
| 1789 |
VICTORIA T
IMO 9817511
|
61,266 | 2017 |
4.5
|
C |
| 1790 |
ROSTRUM AMERICA
IMO 9910351
|
40,007 | 2022 |
4.5
|
C |
| 1791 |
XIN HAI TONG 25
IMO 9632789
|
56,812 | 2012 |
4.5
|
C |
| 1792 |
AL WATHBA
IMO 9663233
|
63,672 | 2013 |
4.5
|
C |
| 1793 |
RUEN
IMO 9754903
|
41,607 | 2016 |
4.5
|
C |
| 1794 |
SUNISA NAREE
IMO 9751248
|
63,345 | 2016 |
4.5
|
C |
| 1795 |
DEJIMA
IMO 9860594
|
63,533 | 2019 |
4.5
|
C |
| 1796 |
STAR SHANGHAI
IMO 9743588
|
63,438 | 2016 |
4.5
|
C |
| 1797 |
OCEAN HARVEST
IMO 9747467
|
55,863 | 2016 |
4.5
|
C |
| 1798 |
GLYFADA
IMO 9714733
|
60,414 | 2013 |
4.5
|
C |
| 1799 |
BUBBA BOOSH
IMO 9674218
|
55,464 | 2014 |
4.5
|
C |
| 1800 |
SIIRT
IMO 9644196
|
63,200 | 2013 |
4.5
|
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 2025 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.