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 · 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 |
|---|---|---|---|---|---|
| 1650 |
STAR LUTAS
IMO 9712709
|
61,347 | 2016 |
4.5
|
C |
| 1646 |
ASTRO SANISTRA
IMO 9805661
|
60,365 | 2018 |
4.5
|
C |
| 1647 |
AMSTEL TIGER
IMO 9434515
|
60,454 | 2016 |
4.5
|
C |
| 1660 |
HIROSHIMA STAR
IMO 9770567
|
81,789 | 2017 |
4.5
|
C |
| 1659 |
JABAL HARIM
IMO 9722053
|
63,277 | 2016 |
4.5
|
C |
| 1658 |
REGNO MARINUS
IMO 9343467
|
54,238 | 2008 |
4.5
|
C |
| 1657 |
MIRELA
IMO 9730218
|
58,721 | 2015 |
4.5
|
C |
| 1656 |
INTREPID
IMO 9324629
|
52,346 | 2005 |
4.5
|
C |
| 1655 |
THOR COURAGE
IMO 9440978
|
58,693 | 2009 |
4.5
|
C |
| 1654 |
HERMES
IMO 9613056
|
75,073 | 2012 |
4.5
|
C |
| 1662 |
CLIPPER IRIS
IMO 9720964
|
63,550 | 2016 |
4.5
|
C |
| 1661 |
PANEMORFI
IMO 9660097
|
61,430 | 2013 |
4.5
|
C |
| 1666 |
KOBAYASHI MARU
IMO 9847011
|
60,397 | 2019 |
4.5
|
C |
| 1665 |
KRISTINITA
IMO 9520936
|
58,110 | 2011 |
4.5
|
C |
| 1664 |
TRITON
IMO 9642356
|
75,009 | 2012 |
4.5
|
C |
| 1663 |
AMIS BRAVE
IMO 9667459
|
61,467 | 2013 |
4.5
|
C |
| 1668 |
NING JING HAI
IMO 9751327
|
63,573 | 2017 |
4.5
|
C |
| 1667 |
CEDAR
IMO 9403035
|
58,802 | 2008 |
4.5
|
C |
| 1669 |
ZH ZHONG XING
IMO 9710892
|
61,122 | 2014 |
4.5
|
C |
| 1670 |
KYZIKOS
IMO 9343845
|
92,598 | 2007 |
4.5
|
C |
| 1671 |
FLORENTIA
IMO 9714666
|
63,340 | 2016 |
4.5
|
C |
| 1672 |
BELITA
IMO 9762857
|
60,479 | 2017 |
4.5
|
C |
| 1674 |
FANEROMENI
IMO 9343857
|
92,485 | 2007 |
4.5
|
C |
| 1673 |
HSL MEXICO
IMO 9897561
|
61,167 | 2020 |
4.5
|
C |
| 1677 |
FENG HE HAI
IMO 9747522
|
63,244 | 2016 |
4.5
|
C |
| 1676 |
PIAVIA
IMO 9570864
|
93,296 | 2011 |
4.5
|
C |
| 1675 |
CL XUCHANG
IMO 9943578
|
61,203 | 2021 |
4.5
|
C |
| 1682 |
PLANA
IMO 9835769
|
47,096 | 2019 |
4.5
|
C |
| 1684 |
SOKO ISLAND
IMO 9615169
|
61,498 | 2012 |
4.5
|
C |
| 1681 |
SAPPHIRE X
IMO 9621132
|
56,734 | 2013 |
4.5
|
C |
| 1689 |
ATLANTIC ELM
IMO 9558244
|
58,028 | 2012 |
4.5
|
C |
| 1688 |
CAPE AKAMAS
IMO 9481453
|
79,454 | 2006 |
4.5
|
C |
| 1680 |
PANDA
IMO 9748277
|
34,960 | 2018 |
4.5
|
C |
| 1687 |
PACIFIC HARMONY
IMO 9668271
|
38,139 | 2013 |
4.5
|
C |
| 1686 |
SAKIZAYA ORCHID
IMO 9811036
|
81,588 | 2017 |
4.5
|
C |
| 1685 |
APAGEON
IMO 9278870
|
52,483 | 2005 |
4.5
|
C |
| 1679 |
GOOD LUCK
IMO 9492517
|
75,015 | 2011 |
4.5
|
C |
| 1678 |
JAL MURARI
IMO 9849564
|
81,993 | 2019 |
4.5
|
C |
| 1683 |
CL CENTURY
IMO 9715816
|
60,319 | 2015 |
4.5
|
C |
| 1690 |
CAGLA
IMO 9375953
|
32,067 | 2008 |
4.5
|
C |
| 1698 |
FIRST SKY
IMO 9782247
|
63,452 | 2017 |
4.5
|
C |
| 1699 |
SOUTHPORT EAGLE
IMO 9575228
|
63,301 | 2013 |
4.5
|
C |
| 1697 |
SKATZOURA
IMO 9566954
|
56,795 | 2011 |
4.5
|
C |
| 1696 |
HORUS
IMO 9635690
|
80,505 | 2012 |
4.5
|
C |
| 1695 |
KERKYRA
IMO 9607162
|
81,375 | 2010 |
4.5
|
C |
| 1694 |
EVA MASTER
IMO 9932139
|
40,242 | 2022 |
4.5
|
C |
| 1693 |
PACIFIC ADVANCE
IMO 9712515
|
63,507 | 2015 |
4.5
|
C |
| 1692 |
GHALA
IMO 9687069
|
50,409 | 2013 |
4.5
|
C |
| 1691 |
ELENI M
IMO 9228033
|
50,992 | 2001 |
4.5
|
C |
| 1700 |
LETIZIA OETKER
IMO 9731717
|
61,288 | 2015 |
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 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.