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 · 638 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 | 4,937 | 5–10% | €400k–1,200k | — | vendor claim |
| Bulbous bow reprofiling | 4,887 | 2–6% | €300k–900k | — | vendor claim |
| Turbocharger cut-out | 3,916 | 1–3% | €80k–250k | — | vendor claim |
| Rotor sails (per unit) | 3,723 | route-dependent | €1,500k–3,500k | — | vendor claim |
| Suction wing sails (per unit) | 3,723 | route-dependent | €1,000k–2,500k | — | vendor claim |
| Methanol dual-fuel conversion | 3,025 | 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 |
|---|---|---|---|---|---|
| 751 |
CATHARINA OLDENDORFF
IMO 9713923
|
95,591 | 2014 |
3.5
|
B |
| 764 |
BULK VENUS
IMO 9744520
|
63,371 | 2017 |
3.5
|
B |
| 765 |
CORATO
IMO 9749829
|
81,677 | 2016 |
3.5
|
B |
| 760 |
PANOPI
IMO 9554183
|
88,299 | 2010 |
3.5
|
B |
| 763 |
NORD SUNDA
IMO 9860738
|
63,343 | 2019 |
3.5
|
B |
| 762 |
PLAINPALAIS
IMO 9739032
|
81,756 | 2015 |
3.5
|
B |
| 761 |
CARDIFF
IMO 9966568
|
90,014 | 2021 |
3.5
|
B |
| 757 |
CIC ROLACO
IMO 9567116
|
175,641 | 2012 |
3.5
|
B |
| 759 |
JY LAKE
IMO 9845257
|
81,146 | 2019 |
3.5
|
B |
| 758 |
GCL MOBILE
IMO 9957488
|
82,525 | 2023 |
3.5
|
B |
| 756 |
FIJI
IMO 9630664
|
81,285 | 2013 |
3.5
|
B |
| 755 |
IRIS BLISS
IMO 9766944
|
82,198 | 2016 |
3.5
|
B |
| 754 |
INDIGO ACE
IMO 9758387
|
81,786 | 2016 |
3.5
|
B |
| 753 |
JOSCO DEZHOU
IMO 9683439
|
61,657 | 2014 |
3.5
|
B |
| 752 |
CENTURY SHANGHAI
IMO 9835070
|
81,738 | 2015 |
3.5
|
B |
| 766 |
DARYA AUM
IMO 9768605
|
81,109 | 2018 |
3.5
|
B |
| 767 |
HONG HING
IMO 9563615
|
76,549 | 2010 |
3.5
|
B |
| 770 |
IZUMI
IMO 9901831
|
82,005 | 2021 |
3.5
|
B |
| 769 |
ATHENA CENTURY
IMO 9599092
|
82,073 | 2013 |
3.5
|
B |
| 768 |
WHEAT WEIFANG
IMO 9883766
|
80,868 | 2020 |
3.5
|
B |
| 773 |
LONGEVITY DIVA
IMO 9905629
|
82,502 | 2021 |
3.5
|
B |
| 772 |
ORIENT CENTAUR
IMO 9464572
|
114,841 | 2010 |
3.5
|
B |
| 771 |
KAPTA DIMITROS
IMO 9928736
|
61,091 | 2022 |
3.5
|
B |
| 778 |
ZONDA
IMO 9476484
|
93,263 | 2006 |
3.5
|
B |
| 774 |
CL JIANGMEN
IMO 9977385
|
64,768 | 2025 |
3.5
|
B |
| 777 |
ANEMOS
IMO 9331529
|
75,397 | 2006 |
3.5
|
B |
| 784 |
SPRING COSMOS
IMO 9666027
|
63,273 | 2014 |
3.5
|
B |
| 776 |
GLORY ALBATROSS
IMO 9591571
|
95,608 | 2011 |
3.5
|
B |
| 786 |
NAVIOS CITRINE
IMO 9782170
|
81,626 | 2017 |
3.5
|
B |
| 785 |
AQUADONNA
IMO 1013676
|
63,526 | 2024 |
3.5
|
B |
| 775 |
SILVERGATE
IMO 9682930
|
77,239 | 2014 |
3.5
|
B |
| 783 |
WORLD PROSPER
IMO 9911721
|
82,065 | 2021 |
3.5
|
B |
| 782 |
ASIAN ETERNITY
IMO 9991472
|
64,683 | 2024 |
3.5
|
B |
| 781 |
YUE GUAN FENG
IMO 9523158
|
75,581 | 2010 |
3.5
|
B |
| 780 |
LADY ANNE
IMO 9866184
|
81,688 | 2020 |
3.5
|
B |
| 779 |
G ATLANTIC
IMO 9284910
|
76,466 | 2004 |
3.5
|
B |
| 790 |
DONOUSA
IMO 9284867
|
76,417 | 2004 |
3.5
|
B |
| 798 |
TAI SPRING
IMO 9771092
|
62,487 | 2016 |
3.5
|
B |
| 797 |
EMERALD DONGJI
IMO 9726528
|
81,547 | 2015 |
3.5
|
B |
| 796 |
GCL HAZIRA
IMO 9926726
|
81,986 | 2021 |
3.5
|
B |
| 795 |
IONIC PRIDE
IMO 9749300
|
84,992 | 2017 |
3.5
|
B |
| 794 |
MEGHNA LEGACY
IMO 9846275
|
63,449 | 2014 |
3.5
|
B |
| 793 |
NYON
IMO 9888039
|
63,465 | 2021 |
3.5
|
B |
| 792 |
EPIC HARMONY
IMO 9922005
|
82,546 | 2021 |
3.5
|
B |
| 791 |
MAGIC P
IMO 9288447
|
76,453 | 2004 |
3.5
|
B |
| 789 |
BRIGHTON
IMO 9966817
|
64,701 | 2024 |
3.5
|
B |
| 788 |
SEA DAWN
IMO 9711937
|
80,915 | 2014 |
3.5
|
B |
| 799 |
LUCA
IMO 9894806
|
63,647 | 2021 |
3.5
|
B |
| 787 |
THOUSAND SPRING
IMO 9867425
|
81,763 | 2020 |
3.5
|
B |
| 800 |
SCARLET EAGLE
IMO 9687693
|
81,842 | 2014 |
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 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.