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 |
|---|---|---|---|---|---|
| 649 |
ULTRA ENDURANCE
IMO 1024479
|
63,719 | 2025 |
3.4
|
A |
| 648 |
NING MAY
IMO 9891866
|
85,206 | 2021 |
3.4
|
A |
| 653 |
ROSTRUM STOIC
IMO 9955911
|
82,175 | 2023 |
3.4
|
A |
| 657 |
MOUDROS
IMO 9952414
|
82,177 | 2022 |
3.4
|
A |
| 656 |
ZURICH
IMO 9668893
|
81,922 | 2014 |
3.4
|
A |
| 658 |
HARVEST FROST
IMO 9643879
|
95,263 | 2014 |
3.4
|
A |
| 655 |
HONG DAI
IMO 9563603
|
76,557 | 2010 |
3.4
|
A |
| 654 |
SAKIZAYA ELEGANCE
IMO 9713806
|
81,938 | 2015 |
3.4
|
A |
| 662 |
AMARYLLIS
IMO 9840491
|
81,758 | 2019 |
3.4
|
A |
| 661 |
SSI DIGNITY
IMO 9665360
|
81,221 | 2014 |
3.4
|
A |
| 663 |
THEODORE VENIAMIS
IMO 1036032
|
63,709 | 2025 |
3.4
|
A |
| 660 |
PUMA MAX
IMO 9589152
|
81,339 | 2012 |
3.4
|
A |
| 665 |
GOLDEN ISLAND
IMO 9964869
|
63,604 | 2024 |
3.4
|
A |
| 664 |
STAR AQUARIUS
IMO 9715828
|
60,916 | 2015 |
3.4
|
A |
| 659 |
DORIC SHOGUN
IMO 9775177
|
63,347 | 2016 |
3.4
|
A |
| 668 |
SEACHAMPION
IMO 9936939
|
82,032 | 2022 |
3.4
|
A |
| 667 |
PUPLINGE
IMO 9782156
|
81,672 | 2016 |
3.4
|
A |
| 669 |
SOCRATES GRAECIA
IMO 9843754
|
82,057 | 2020 |
3.4
|
A |
| 666 |
ECHO.GR
IMO 9673836
|
81,070 | 2014 |
3.4
|
A |
| 672 |
ETG UBUNTU
IMO 9952907
|
64,195 | 2022 |
3.4
|
A |
| 671 |
MSXT THALIA
IMO 9929326
|
85,204 | 2022 |
3.4
|
A |
| 670 |
CEPHEUS OCEAN
IMO 9686273
|
83,000 | 2015 |
3.4
|
A |
| 676 |
AMIS YOUTH
IMO 9979242
|
63,720 | 2024 |
3.4
|
A |
| 678 |
GRAECIA AETERNA
IMO 9689835
|
81,001 | 2014 |
3.4
|
A |
| 675 |
MEDI SERAPO
IMO 9811531
|
87,091 | 2018 |
3.4
|
A |
| 682 |
BEAGLE
IMO 9731195
|
81,920 | 2016 |
3.4
|
A |
| 681 |
CL YANGZHOU
IMO 9703265
|
81,061 | 2019 |
3.4
|
A |
| 680 |
BELLEVUE
IMO 9431185
|
119,346 | 2011 |
3.4
|
A |
| 674 |
ARIANA
IMO 9828297
|
81,011 | 2019 |
3.4
|
A |
| 679 |
NORDIC OASIS
IMO 9727120
|
75,800 | 2016 |
3.4
|
A |
| 673 |
JY LONDON
IMO 9867176
|
81,200 | 2020 |
3.4
|
A |
| 677 |
ANAFI
IMO 9978602
|
63,629 | 2024 |
3.4
|
A |
| 684 |
FAIR LADY
IMO 9342877
|
76,608 | 2005 |
3.5
|
A |
| 683 |
RG CERES
IMO 9310288
|
83,001 | 2006 |
3.5
|
A |
| 687 |
MALENA
IMO 9852822
|
81,575 | 2019 |
3.5
|
A |
| 689 |
GLYFADA I
IMO 9473145
|
75,639 | 2009 |
3.5
|
A |
| 686 |
ULTRA PASSION
IMO 9811907
|
63,472 | 2017 |
3.5
|
A |
| 691 |
SDM QUANZHOU
IMO 9949259
|
64,309 | 2023 |
3.5
|
A |
| 690 |
AMIS XCEL
IMO 9983774
|
63,739 | 2024 |
3.5
|
A |
| 685 |
PEAK RAINIER
IMO 9710139
|
81,070 | 2015 |
3.5
|
A |
| 688 |
JIN ZHU HAI
IMO 9494383
|
76,450 | 2009 |
3.5
|
A |
| 700 |
PRISCILLA
IMO 9880221
|
82,543 | 2020 |
3.5
|
B |
| 699 |
LOWLANDS FIDELITY
IMO 9966087
|
64,028 | 2023 |
3.5
|
B |
| 698 |
FARAH LOUISE
IMO 9785603
|
81,886 | 2017 |
3.5
|
B |
| 697 |
RB LEAH
IMO 9730830
|
81,334 | 2017 |
3.5
|
B |
| 696 |
KOULITSA 2
IMO 9639684
|
78,129 | 2013 |
3.5
|
B |
| 695 |
PEAK HAKU
IMO 9888467
|
82,514 | 2021 |
3.5
|
B |
| 694 |
EMERALD DAISHAN
IMO 9981295
|
85,516 | 2023 |
3.5
|
B |
| 693 |
IOANNA FORCE
IMO 9796561
|
80,982 | 2017 |
3.5
|
B |
| 692 |
KATAGALAN WISDOM
IMO 9599121
|
98,697 | 2012 |
3.5
|
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.