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 |
|---|---|---|---|---|---|
| 2951 |
LAUSANNE
IMO 9575527
|
32,588 | 2010 |
6.4
|
E |
| 2952 |
WHISTLER
IMO 9358371
|
37,272 | 2007 |
6.4
|
E |
| 2953 |
EVEREST K
IMO 9472696
|
35,065 | 2009 |
6.4
|
E |
| 2954 |
NAJWA
IMO 9615561
|
56,970 | 2012 |
6.4
|
E |
| 2955 |
VIVA ECLIPSE
IMO 9438016
|
54,279 | 2009 |
6.4
|
E |
| 2956 |
ADVENTURE
IMO 9749972
|
34,487 | 2019 |
6.4
|
E |
| 2957 |
STRADION
IMO 9522922
|
36,868 | 2011 |
6.4
|
E |
| 2958 |
PRAETORIUS
IMO 9470856
|
28,345 | 2008 |
6.4
|
E |
| 2959 |
LADY MARIS
IMO 9228071
|
45,601 | 2001 |
6.4
|
E |
| 2960 |
GOLDEN NOUR
IMO 9497440
|
31,780 | 2011 |
6.4
|
E |
| 2961 |
ATROMITOS L
IMO 9605073
|
28,227 | 2012 |
6.4
|
E |
| 2962 |
ELONG ELONG
IMO 9548732
|
21,461 | 2009 |
6.4
|
E |
| 2963 |
NESTOR S
IMO 9473341
|
75,200 | 2011 |
6.4
|
E |
| 2964 |
AZTECA
IMO 9646742
|
36,055 | 2011 |
6.4
|
E |
| 2965 |
ASTURCON
IMO 9646730
|
36,070 | 2011 |
6.4
|
E |
| 2966 |
CAPE BYRON
IMO 9629677
|
36,005 | 2012 |
6.4
|
E |
| 2967 |
SHENG XIANG HAI
IMO 9533062
|
56,936 | 2010 |
6.4
|
E |
| 2968 |
FEDERAL SUTTON
IMO 9595917
|
37,168 | 2012 |
6.5
|
E |
| 2969 |
STELLAR TRADER
IMO 9628817
|
35,946 | 2013 |
6.5
|
E |
| 2970 |
LOLWA SH
IMO 9117832
|
27,359 | 1996 |
6.5
|
E |
| 2971 |
ZAFER
IMO 9579315
|
37,768 | 2011 |
6.5
|
E |
| 2972 |
PHATRA NAREE
IMO 9649861
|
35,882 | 2017 |
6.5
|
E |
| 2973 |
PATAGONIA
IMO 9611280
|
35,964 | 2012 |
6.5
|
E |
| 2974 |
YANGTZE GRACE
IMO 9584231
|
32,503 | 2012 |
6.5
|
E |
| 2975 |
SUPER SARKAS
IMO 9221633
|
28,495 | 2002 |
6.5
|
E |
| 2976 |
ARXAGELOS
IMO 9445124
|
28,534 | 2007 |
6.5
|
E |
| 2977 |
AMK NOBLE
IMO 9557238
|
32,449 | 2010 |
6.5
|
E |
| 2978 |
AM PURPOSE
IMO 9455387
|
35,196 | 2006 |
6.5
|
E |
| 2979 |
SOUTHERN CROSS
IMO 9606027
|
37,085 | 2014 |
6.5
|
E |
| 2980 |
APOGEE ENDEAVOUR
IMO 9553141
|
28,341 | 2009 |
6.5
|
E |
| 2981 |
SIDRIAN
IMO 9285134
|
38,981 | 2005 |
6.5
|
E |
| 2982 |
MARGUERITA
IMO 9717515
|
27,674 | 2016 |
6.5
|
E |
| 2983 |
PERA
IMO 9633202
|
38,218 | 2012 |
6.5
|
E |
| 2984 |
SELO
IMO 9543251
|
32,389 | 2011 |
6.5
|
E |
| 2985 |
POAVOSA WISDOM VI
IMO 9589724
|
28,213 | 2011 |
6.5
|
E |
| 2986 |
SEA DESTINY
IMO 9454175
|
55,614 | 2009 |
6.5
|
E |
| 2987 |
ANGY R
IMO 9530955
|
36,903 | 2011 |
6.5
|
E |
| 2988 |
MALTEZA
IMO 9479034
|
55,580 | 2011 |
6.5
|
E |
| 2989 |
KHOI VENTURES
IMO 9633288
|
28,207 | 2012 |
6.5
|
E |
| 2990 |
NAB BULKER
IMO 9270907
|
32,729 | 2003 |
6.5
|
E |
| 2991 |
ARIZONA
IMO 9592733
|
56,969 | 2010 |
6.5
|
E |
| 2992 |
MACCOA
IMO 9413913
|
30,898 | 2009 |
6.5
|
E |
| 2993 |
THALIS
IMO 9616747
|
37,189 | 2012 |
6.5
|
E |
| 2994 |
NEW SOUL
IMO 9325154
|
29,818 | 2008 |
6.5
|
E |
| 2995 |
PORTAITISSA
IMO 9486582
|
37,149 | 2011 |
6.5
|
E |
| 2996 |
LI DA SHUN
IMO 9546095
|
56,897 | 2010 |
6.5
|
E |
| 2997 |
ALENTEJO
IMO 9626118
|
36,041 | 2013 |
6.5
|
E |
| 2998 |
SMEW
IMO 9688843
|
35,998 | 2014 |
6.5
|
E |
| 2999 |
AMALIYA
IMO 9312341
|
28,436 | 2004 |
6.5
|
E |
| 3000 |
LIPSI
IMO 9522958
|
35,066 | 2011 |
6.5
|
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.