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 |
|---|---|---|---|---|---|
| 1553 |
BORDEAUX
IMO 9483229
|
55,621 | 2011 |
4.3
|
C |
| 1550 |
NIKOLAOS S
IMO 9473315
|
75,020 | 2010 |
4.3
|
C |
| 1554 |
SEABISCUIT
IMO 9619787
|
82,624 | 2014 |
4.3
|
C |
| 1549 |
YUAN HANG CAI FU
IMO 9580481
|
76,037 | 2012 |
4.3
|
C |
| 1556 |
NEFELI
IMO 9696462
|
63,466 | 2016 |
4.4
|
C |
| 1555 |
LAS PALMAS
IMO 9916290
|
63,576 | 2021 |
4.4
|
C |
| 1557 |
FAIRFIELD EAGLE
IMO 9575230
|
63,301 | 2013 |
4.4
|
C |
| 1558 |
MAPLE UNITY
IMO 9605011
|
61,438 | 2012 |
4.4
|
C |
| 1566 |
MADISON EAGLE
IMO 9575278
|
63,301 | 2013 |
4.4
|
C |
| 1564 |
EL COMINO
IMO 9624378
|
61,465 | 2012 |
4.4
|
C |
| 1565 |
GREAT HAN
IMO 9766920
|
64,793 | 2017 |
4.4
|
C |
| 1562 |
JABAL AL KAWR
IMO 9732943
|
63,581 | 2014 |
4.4
|
C |
| 1563 |
ADAM I
IMO 9469508
|
79,775 | 2010 |
4.4
|
C |
| 1561 |
XIN HAI
IMO 9500950
|
75,380 | 2012 |
4.4
|
C |
| 1560 |
CATHERINE
IMO 9975193
|
40,544 | 2024 |
4.4
|
C |
| 1559 |
LU XIANG
IMO 9407524
|
55,429 | 2009 |
4.4
|
C |
| 1568 |
TOMINI UNITY
IMO 9718167
|
63,590 | 2017 |
4.4
|
C |
| 1567 |
VEZHEN
IMO 9937270
|
32,196 | 2022 |
4.4
|
C |
| 1570 |
KYTHIRA I
IMO 9590046
|
81,444 | 2011 |
4.4
|
C |
| 1569 |
ROSTRUM
IMO 9771030
|
63,018 | 2021 |
4.4
|
C |
| 1576 |
SSI MAJESTY
IMO 9478913
|
55,694 | 2010 |
4.4
|
C |
| 1571 |
WARRIOR
IMO 1014838
|
40,053 | 2024 |
4.4
|
C |
| 1575 |
STALWART
IMO 9593476
|
93,168 | 2011 |
4.4
|
C |
| 1577 |
KOUTALIANOS
IMO 9332016
|
92,710 | 2007 |
4.4
|
C |
| 1574 |
TOMINI LIBERTY
IMO 9718179
|
63,511 | 2018 |
4.4
|
C |
| 1578 |
FENG DE HAI
IMO 9727637
|
63,356 | 2015 |
4.4
|
C |
| 1573 |
ATHINA CARRAS
IMO 9592719
|
82,057 | 2012 |
4.4
|
C |
| 1572 |
GW MATHILDE
IMO 9874650
|
63,592 | 2020 |
4.4
|
C |
| 1584 |
ST GREG
IMO 9596179
|
57,949 | 2010 |
4.4
|
C |
| 1579 |
OCEAN PERA
IMO 9712955
|
55,837 | 2015 |
4.4
|
C |
| 1581 |
KIRAN AUSTRALIA
IMO 9576961
|
63,517 | 2013 |
4.4
|
C |
| 1583 |
SENORITA
IMO 9284257
|
56,029 | 2005 |
4.4
|
C |
| 1582 |
HECTOR
IMO 9502635
|
75,200 | 2012 |
4.4
|
C |
| 1580 |
GENESIS
IMO 9632947
|
81,305 | 2012 |
4.4
|
C |
| 1590 |
POSEIDON.GR
IMO 9760067
|
60,370 | 2013 |
4.4
|
C |
| 1588 |
FEDERAL PRIME
IMO 9950624
|
42,696 | 2023 |
4.4
|
C |
| 1589 |
RED AZALEA
IMO 9727417
|
61,299 | 2015 |
4.4
|
C |
| 1586 |
HONG YUAN
IMO 9500883
|
76,574 | 2009 |
4.4
|
C |
| 1587 |
MAGIC L
IMO 9318591
|
73,593 | 2007 |
4.4
|
C |
| 1585 |
PEDHOULAS MERCHANT
IMO 9279800
|
82,214 | 2006 |
4.4
|
C |
| 1600 |
JOSCO LANZHOU
IMO 9872470
|
61,323 | 2020 |
4.4
|
C |
| 1599 |
AMIS WISDOM I
IMO 9426764
|
61,611 | 2010 |
4.4
|
C |
| 1598 |
CONTESSA
IMO 9610119
|
81,383 | 2013 |
4.4
|
C |
| 1597 |
STEFANOS T
IMO 9583744
|
80,499 | 2011 |
4.4
|
C |
| 1596 |
MILAS
IMO 9279379
|
50,316 | 2004 |
4.4
|
C |
| 1595 |
PAN HARVEST
IMO 9699335
|
63,577 | 2015 |
4.4
|
C |
| 1594 |
MAGIC PLUTO
IMO 9651280
|
74,940 | 2013 |
4.4
|
C |
| 1593 |
BALTIC MANTIS
IMO 9729489
|
64,000 | 2015 |
4.4
|
C |
| 1592 |
YEOMAN BONTRUP
IMO 8912297
|
96,772 | 1991 |
4.4
|
C |
| 1591 |
CHOLA VIRTUE
IMO 9267601
|
76,610 | 1999 |
4.4
|
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.