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 · 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 |
|---|---|---|---|---|---|
| 3001 |
LIPSI
IMO 9522958
|
35,066 | 2011 |
6.5
|
E |
| 3002 |
MAPLE AMBITION
IMO 9760354
|
35,513 | 2015 |
6.6
|
E |
| 3003 |
PVT EMERALD
IMO 9486427
|
33,802 | 2011 |
6.6
|
E |
| 3004 |
SEAHOPE
IMO 9598294
|
32,922 | 2012 |
6.6
|
E |
| 3005 |
AZURE
IMO 9432256
|
56,781 | 2012 |
6.6
|
E |
| 3006 |
STRATEGIC SAVANNAH
IMO 9686338
|
35,542 | 2013 |
6.6
|
E |
| 3007 |
AUTUMN SEA
IMO 9639775
|
35,200 | 2013 |
6.6
|
E |
| 3008 |
AURORA TRADER
IMO 9595967
|
37,019 | 2012 |
6.6
|
E |
| 3009 |
BLUEBILL
IMO 9263306
|
37,332 | 2004 |
6.6
|
E |
| 3010 |
ORCINUS
IMO 9467952
|
34,094 | 2010 |
6.6
|
E |
| 3011 |
BARNACLE
IMO 9409742
|
30,803 | 2009 |
6.6
|
E |
| 3012 |
ALANDA STAR
IMO 9189677
|
31,828 | 1999 |
6.6
|
E |
| 3013 |
CETUS OMURA
IMO 9670781
|
43,532 | 2016 |
6.6
|
E |
| 3014 |
MEL GRACE
IMO 9590955
|
38,225 | 2011 |
6.6
|
E |
| 3015 |
HELENA G
IMO 9358383
|
37,251 | 2007 |
6.6
|
E |
| 3016 |
ABK LEGEND
IMO 9238674
|
30,039 | 2000 |
6.6
|
E |
| 3017 |
STRATEGIC FORTITUDE
IMO 9753387
|
37,829 | 2016 |
6.6
|
E |
| 3018 |
PUCK
IMO 9594250
|
37,930 | 2012 |
6.6
|
E |
| 3019 |
STRATEGIC EXPLORER
IMO 9723708
|
39,880 | 2015 |
6.6
|
E |
| 3020 |
JAGUAR
IMO 9464948
|
36,839 | 2011 |
6.6
|
E |
| 3021 |
LONDON BAY
IMO 9286944
|
29,727 | 2004 |
6.6
|
E |
| 3022 |
AGIA DYNAMI
IMO 9502764
|
34,292 | 2010 |
6.6
|
E |
| 3023 |
OSLEEN
IMO 9278739
|
33,658 | 2004 |
6.6
|
E |
| 3024 |
REDHEAD
IMO 9413901
|
29,724 | 2010 |
6.6
|
E |
| 3025 |
GOLDEN CITRUS
IMO 9663740
|
39,232 | 2015 |
6.6
|
E |
| 3026 |
LADY VENEZIA
IMO 9641821
|
28,207 | 2013 |
6.6
|
E |
| 3027 |
BABITONGA BAY
IMO 9663776
|
39,202 | 2015 |
6.7
|
E |
| 3028 |
AMALIA
IMO 9588354
|
35,063 | 2010 |
6.7
|
E |
| 3029 |
MAAS CONFIDENCE
IMO 9713210
|
34,914 | 2016 |
6.7
|
E |
| 3030 |
BRAVE M
IMO 9153496
|
28,412 | 1998 |
6.7
|
E |
| 3031 |
YARA J
IMO 9118147
|
34,169 | 1997 |
6.7
|
E |
| 3032 |
PHOENICIAN-M
IMO 9450806
|
37,973 | 2010 |
6.7
|
E |
| 3033 |
G PUTUO
IMO 9491238
|
56,780 | 2011 |
6.7
|
E |
| 3034 |
ACTION TRADER
IMO 9808663
|
39,481 | 2017 |
6.7
|
E |
| 3035 |
MARYAM D
IMO 9740445
|
36,176 | 2016 |
6.7
|
E |
| 3036 |
K SUKRET
IMO 9571442
|
33,814 | 2014 |
6.7
|
E |
| 3037 |
YASA KYOTO
IMO 9948267
|
37,396 | 2023 |
6.7
|
E |
| 3038 |
PODLASIE
IMO 9346811
|
38,981 | 2008 |
6.7
|
E |
| 3039 |
VIVA COSMOS
IMO 9251327
|
52,089 | 2003 |
6.7
|
E |
| 3040 |
HANDY STRANGER
IMO 9643453
|
34,753 | 2014 |
6.7
|
E |
| 3041 |
SHIMANAMI STAR
IMO 9377717
|
28,447 | 2006 |
6.7
|
E |
| 3042 |
BELASITZA
IMO 9498262
|
30,696 | 2011 |
6.7
|
E |
| 3043 |
TAN BINH 345
IMO 9491680
|
37,218 | 2011 |
6.7
|
E |
| 3044 |
ARDENNES
IMO 9646699
|
36,062 | 2011 |
6.7
|
E |
| 3045 |
DS MANATEE
IMO 9255189
|
27,129 | 2002 |
6.7
|
E |
| 3046 |
CATIVERA
IMO 9172105
|
24,154 | 1998 |
6.7
|
E |
| 3047 |
SERENITY
IMO 9606120
|
52,000 | 2016 |
6.7
|
E |
| 3048 |
GOLDEN ARSENAL
IMO 9493212
|
28,221 | 2011 |
6.7
|
E |
| 3049 |
LILA TOCHIGI
IMO 9683116
|
28,354 | 2014 |
6.7
|
E |
| 3050 |
ALLEGRA
IMO 9519169
|
35,118 | 2008 |
6.7
|
E |
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.