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 · 630 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 | 3,728 | 1–3% | €80k–250k | — | vendor claim |
| Rotor sails (per unit) | 3,512 | route-dependent | €1,500k–3,500k | — | vendor claim |
| Suction wing sails (per unit) | 3,512 | 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 |
|---|---|---|---|---|---|
| 1148 |
NAN XIN 27
IMO 9358838
|
74,483 | 2006 |
4.0
|
B |
| 1155 |
JOHN M CARRAS
IMO 9592707
|
82,057 | 2010 |
4.0
|
B |
| 1154 |
CRYSTAL OCEAN
IMO 9897913
|
82,558 | 2021 |
4.0
|
B |
| 1153 |
BESIKTAS-M
IMO 9291365
|
53,020 | 2003 |
4.0
|
B |
| 1159 |
SM ROBERTS BANK
IMO 9842504
|
80,833 | 2019 |
4.0
|
B |
| 1158 |
LADY ANNE
IMO 9866184
|
81,688 | 2020 |
4.0
|
B |
| 1157 |
BELLEVUE
IMO 9431185
|
119,346 | 2011 |
4.0
|
B |
| 1156 |
MARY GORGIAS
IMO 9366108
|
75,194 | 2008 |
4.0
|
B |
| 1151 |
DECLAN DUFF
IMO 9476525
|
93,253 | 2012 |
4.0
|
B |
| 1160 |
GOLDEN TRADER
IMO 9856311
|
63,677 | 2021 |
4.0
|
B |
| 1162 |
VIENNA
IMO 9403205
|
58,736 | 2009 |
4.0
|
B |
| 1161 |
GUO YUAN 32
IMO 9591480
|
75,806 | 2013 |
4.0
|
B |
| 1164 |
DORIC LIBERTY
IMO 9611890
|
82,084 | 2012 |
4.0
|
B |
| 1163 |
RYSY
IMO 9452622
|
79,602 | 2011 |
4.0
|
B |
| 1165 |
CL EPIC
IMO 9853022
|
62,623 | 2020 |
4.0
|
B |
| 1170 |
LEM GERANIUM
IMO 9845790
|
64,712 | 2015 |
4.0
|
B |
| 1176 |
GEBE OLDENDORFF
IMO 9727596
|
80,943 | 2016 |
4.0
|
B |
| 1169 |
SYMI
IMO 9669407
|
62,982 | 2014 |
4.0
|
B |
| 1178 |
CONCORDIA
IMO 9313292
|
82,499 | 2011 |
4.0
|
B |
| 1177 |
LYRIC SUN
IMO 9586629
|
81,276 | 2011 |
4.0
|
B |
| 1168 |
GOLDEN FROST
IMO 9849899
|
80,559 | 2020 |
4.0
|
B |
| 1175 |
DESERT VIRTUE
IMO 9883132
|
63,553 | 2015 |
4.0
|
B |
| 1174 |
SENECA
IMO 9591179
|
83,975 | 2013 |
4.0
|
B |
| 1173 |
LA STELLA
IMO 9748368
|
61,286 | 2012 |
4.0
|
B |
| 1172 |
YAYA GOOSE
IMO 9714745
|
60,425 | 2013 |
4.0
|
B |
| 1167 |
STOCKHOLM EAGLE
IMO 9704855
|
63,500 | 2016 |
4.0
|
B |
| 1166 |
ATHINA III
IMO 9247285
|
73,305 | 2004 |
4.0
|
B |
| 1179 |
KILIAN OLDENDORFF
IMO 9863089
|
81,246 | 2020 |
4.0
|
B |
| 1171 |
HSL HONOLULU
IMO 9950313
|
64,241 | 2023 |
4.0
|
B |
| 1180 |
OMICRON ATLAS
IMO 9464510
|
76,554 | 2008 |
4.0
|
B |
| 1183 |
OGBA
IMO 9724001
|
63,488 | 2015 |
4.0
|
B |
| 1182 |
V ATLAS
IMO 9670846
|
56,451 | 2014 |
4.0
|
B |
| 1181 |
IOLCOS GENESIS
IMO 9503782
|
84,062 | 2011 |
4.0
|
B |
| 1187 |
GU IMABARI
IMO 9544401
|
76,619 | 2009 |
4.0
|
B |
| 1186 |
LING BAI
IMO 9227649
|
75,121 | 2001 |
4.0
|
B |
| 1188 |
FEDERAL TOKORO
IMO 9725445
|
55,543 | 2015 |
4.0
|
B |
| 1185 |
CAMELLIA
IMO 9684134
|
75,321 | 2013 |
4.0
|
B |
| 1184 |
FIJI
IMO 9630664
|
81,285 | 2013 |
4.0
|
B |
| 1200 |
TINOS
IMO 9597795
|
81,391 | 2011 |
4.0
|
B |
| 1199 |
GLOBAL PRIME
IMO 9658941
|
56,013 | 2014 |
4.0
|
B |
| 1198 |
ALPHA
IMO 9489041
|
81,967 | 2011 |
4.0
|
B |
| 1197 |
SCARABE
IMO 9712967
|
60,435 | 2015 |
4.0
|
B |
| 1196 |
CL SHA HE
IMO 9890654
|
63,092 | 2020 |
4.0
|
B |
| 1195 |
CERVIA
IMO 9570838
|
93,273 | 2010 |
4.0
|
B |
| 1194 |
SW MISTRAL I
IMO 9520948
|
58,110 | 2011 |
4.0
|
B |
| 1193 |
ADELANTE
IMO 9597109
|
81,585 | 2012 |
4.0
|
B |
| 1192 |
ZHENG YAO
IMO 9601883
|
81,716 | 2014 |
4.0
|
B |
| 1191 |
CL FUZHOU HE
IMO 9890630
|
63,125 | 2021 |
4.0
|
B |
| 1190 |
EVER BEST
IMO 9607837
|
81,717 | 2013 |
4.0
|
B |
| 1189 |
IRENE
IMO 9757931
|
61,299 | 2014 |
4.0
|
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.