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 · 525 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 | 4,881 | 5–10% | €400k–1,200k | — | vendor claim |
| Bulbous bow reprofiling | 4,831 | 2–6% | €300k–900k | — | vendor claim |
| Turbocharger cut-out | 3,305 | 1–3% | €80k–250k | — | vendor claim |
| Rotor sails (per unit) | 3,136 | route-dependent | €1,500k–3,500k | — | vendor claim |
| Suction wing sails (per unit) | 3,136 | route-dependent | €1,000k–2,500k | — | vendor claim |
| Methanol dual-fuel conversion | 2,972 | 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 |
|---|---|---|---|---|---|
| 743 |
MOREA
IMO 9699880
|
63,280 | 2015 |
3.6
|
B |
| 752 |
POSEIDON VENTURE
IMO 9362229
|
76,585 | 2006 |
3.6
|
B |
| 754 |
PUMA MAX
IMO 9589152
|
81,339 | 2012 |
3.6
|
B |
| 757 |
OCEAN AZURE
IMO 9960150
|
63,702 | 2023 |
3.6
|
B |
| 756 |
ORANGE HARMONY
IMO 9764099
|
81,739 | 2017 |
3.6
|
B |
| 755 |
GENOA
IMO 9805659
|
60,396 | 2017 |
3.6
|
B |
| 759 |
THOUSAND SPRING
IMO 9867425
|
81,763 | 2020 |
3.6
|
B |
| 758 |
PAN CERES
IMO 9582465
|
82,158 | 2013 |
3.6
|
B |
| 753 |
PAN TOPAZ
IMO 9625827
|
82,787 | 2012 |
3.6
|
B |
| 760 |
AM CONTRECOEUR
IMO 9583184
|
82,177 | 2011 |
3.6
|
B |
| 770 |
ZHENG HUI
IMO 9596105
|
81,797 | 2014 |
3.6
|
B |
| 769 |
PEARL ISLAND
IMO 9801720
|
63,878 | 2015 |
3.6
|
B |
| 768 |
IZUMI
IMO 9901831
|
82,005 | 2021 |
3.6
|
B |
| 767 |
REX OLDENDORFF
IMO 9463671
|
121,412 | 2011 |
3.6
|
B |
| 766 |
MARINE HONESTY
IMO 9455557
|
114,078 | 2011 |
3.6
|
B |
| 765 |
ETG UBUNTU
IMO 9952907
|
64,195 | 2022 |
3.6
|
B |
| 764 |
PEGASOS
IMO 9624653
|
81,598 | 2012 |
3.6
|
B |
| 763 |
SAPHIRA
IMO 9909209
|
82,577 | 2021 |
3.6
|
B |
| 762 |
STEEL C
IMO 9700330
|
63,118 | 2015 |
3.6
|
B |
| 761 |
DAWN
IMO 9750440
|
63,561 | 2018 |
3.6
|
B |
| 772 |
ARUNA BERK
IMO 9543689
|
57,414 | 2011 |
3.6
|
B |
| 774 |
SIDER IMABARI
IMO 9984417
|
40,320 | 2024 |
3.6
|
B |
| 771 |
G. B. CORRADO
IMO 9314624
|
77,061 | 2003 |
3.6
|
B |
| 784 |
STAR AMETHYST
IMO 9523251
|
82,123 | 2009 |
3.6
|
B |
| 775 |
MOONBEAM
IMO 9493987
|
58,138 | 2013 |
3.6
|
B |
| 773 |
CANOPUS
IMO 9843443
|
80,992 | 2021 |
3.6
|
B |
| 783 |
AL DHAFRA
IMO 9852767
|
63,555 | 2019 |
3.6
|
B |
| 782 |
JSW SALEM
IMO 9537721
|
176,217 | 2012 |
3.6
|
B |
| 781 |
BISON
IMO 9622423
|
82,197 | 2013 |
3.6
|
B |
| 780 |
ALMA
IMO 9706530
|
81,947 | 2017 |
3.6
|
B |
| 779 |
AOM MARIA LAURA
IMO 9911410
|
82,312 | 2021 |
3.6
|
B |
| 778 |
IONIC PRIDE
IMO 9749300
|
84,992 | 2014 |
3.6
|
B |
| 777 |
ELLIREA
IMO 9757008
|
60,263 | 2017 |
3.6
|
B |
| 776 |
XIN ZHI SEA
IMO 9955014
|
64,107 | 2024 |
3.6
|
B |
| 789 |
KASTOR
IMO 9843405
|
80,996 | 2020 |
3.6
|
B |
| 788 |
PENTA
IMO 9460605
|
76,424 | 2011 |
3.6
|
B |
| 790 |
KYPROS LOYALTY
IMO 9717424
|
77,998 | 2015 |
3.6
|
B |
| 787 |
GREEK SEAS
IMO 9718698
|
82,043 | 2015 |
3.6
|
B |
| 794 |
NORD MAGELLAN
IMO 9874961
|
63,547 | 2020 |
3.6
|
B |
| 793 |
NORDIC SANNGIJUQ
IMO 9895795
|
95,758 | 2021 |
3.6
|
B |
| 792 |
HUAN HANG 99
IMO 9646651
|
75,390 | 2018 |
3.6
|
B |
| 786 |
ONE ENERGY
IMO 9592123
|
81,076 | 2011 |
3.6
|
B |
| 791 |
FEDERAL INTEGRITY
IMO 9933066
|
63,729 | 2023 |
3.6
|
B |
| 785 |
MARVELOUS STAR
IMO 9864095
|
81,980 | 2020 |
3.6
|
B |
| 800 |
DUCHESS ROSARIO
IMO 9870458
|
81,999 | 2020 |
3.6
|
B |
| 799 |
BELTRADER
IMO 9911642
|
61,043 | 2021 |
3.6
|
B |
| 798 |
BELMONTE
IMO 9687124
|
81,344 | 2014 |
3.6
|
B |
| 797 |
GCL LUXEMBOURG
IMO 9921843
|
82,310 | 2021 |
3.6
|
B |
| 796 |
BIRTE OLDENDORFF
IMO 9448047
|
114,500 | 2010 |
3.6
|
B |
| 795 |
BELTOKYO
IMO 9916238
|
63,626 | 2022 |
3.6
|
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.