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 |
|---|---|---|---|---|---|
| 1253 |
TAI SUMMIT
IMO 9727144
|
60,618 | 2013 |
4.0
|
B |
| 1252 |
STEFANOS D
IMO 9972610
|
63,534 | 2024 |
4.0
|
B |
| 1251 |
PAC ALCOR
IMO 9913640
|
63,144 | 2021 |
4.0
|
B |
| 1250 |
BELFORCE
IMO 9911678
|
61,224 | 2021 |
4.0
|
B |
| 1247 |
SHELTER ISLAND
IMO 9426336
|
61,414 | 2006 |
4.0
|
B |
| 1264 |
STAR HELENA
IMO 9361213
|
82,191 | 2006 |
4.0
|
B |
| 1258 |
STAR SYDNEY
IMO 9699373
|
63,529 | 2015 |
4.0
|
B |
| 1257 |
GOOD HEART
IMO 9669380
|
62,996 | 2014 |
4.0
|
B |
| 1256 |
NORDIC ODIN
IMO 9687239
|
76,180 | 2015 |
4.0
|
B |
| 1261 |
S RUMBA
IMO 9712498
|
84,867 | 2013 |
4.0
|
B |
| 1265 |
KIM OLDENDORFF
IMO 9848998
|
81,284 | 2019 |
4.0
|
B |
| 1260 |
SANTANDER
IMO 9916305
|
63,650 | 2022 |
4.0
|
B |
| 1267 |
MARINE VICTORY
IMO 9455533
|
114,091 | 2011 |
4.0
|
B |
| 1266 |
CL YINGNA HE
IMO 9890666
|
63,126 | 2021 |
4.0
|
B |
| 1259 |
NORD HOUSTON
IMO 9989297
|
40,552 | 2024 |
4.0
|
B |
| 1263 |
ZHENG KAI
IMO 9593787
|
81,877 | 2012 |
4.0
|
B |
| 1262 |
SOTKA
IMO 9792462
|
64,043 | 2018 |
4.0
|
B |
| 1268 |
KATJA OLDENDORFF
IMO 9867554
|
81,297 | 2020 |
4.1
|
B |
| 1281 |
KMAX EVDOKIA
IMO 9341873
|
78,932 | 2007 |
4.1
|
B |
| 1280 |
GLORIA
IMO 9313307
|
82,464 | 2011 |
4.1
|
B |
| 1269 |
ISSARA NAREE
IMO 9732187
|
64,000 | 2012 |
4.1
|
B |
| 1279 |
LEM MARIGOLD
IMO 9845805
|
64,663 | 2015 |
4.1
|
B |
| 1278 |
ANTIPAROS
IMO 9600657
|
81,572 | 2012 |
4.1
|
B |
| 1277 |
GOLDEN FREEZE
IMO 9849904
|
81,135 | 2021 |
4.1
|
B |
| 1276 |
MEDI ATLANTICO
IMO 9774446
|
60,550 | 2016 |
4.1
|
B |
| 1275 |
JOHNY
IMO 9537903
|
93,039 | 2010 |
4.1
|
B |
| 1274 |
MONT BLANC HAWK
IMO 9790816
|
81,638 | 2017 |
4.1
|
B |
| 1273 |
EVER ALLIANCE
IMO 9423255
|
57,991 | 2011 |
4.1
|
B |
| 1272 |
FEDERAL TYNE
IMO 9658903
|
55,160 | 2014 |
4.1
|
B |
| 1271 |
EY HAYDN
IMO 9702510
|
63,608 | 2015 |
4.1
|
B |
| 1270 |
BUILDER
IMO 9589255
|
81,541 | 2012 |
4.1
|
B |
| 1285 |
RUBY
IMO 9714707
|
61,192 | 2013 |
4.1
|
B |
| 1287 |
SANTA VENERA
IMO 9977971
|
42,823 | 2022 |
4.1
|
B |
| 1284 |
KATERINA III
IMO 9500273
|
75,700 | 2011 |
4.1
|
B |
| 1289 |
DORIC VICTORY
IMO 9425887
|
58,091 | 2010 |
4.1
|
B |
| 1288 |
YANGTZE JEWEL
IMO 9742235
|
63,212 | 2015 |
4.1
|
B |
| 1283 |
TOP MARINE
IMO 9995351
|
39,850 | 2024 |
4.1
|
B |
| 1282 |
FEDERAL INDUS
IMO 9860582
|
63,458 | 2019 |
4.1
|
B |
| 1286 |
FJELD SVEA
IMO 9626687
|
81,510 | 2013 |
4.1
|
B |
| 1300 |
STAR DIAMOND
IMO 9478030
|
93,407 | 2009 |
4.1
|
B |
| 1299 |
THYME
IMO 9642801
|
82,312 | 2014 |
4.1
|
B |
| 1298 |
SCARLET LADY
IMO 9225043
|
75,336 | 2001 |
4.1
|
B |
| 1297 |
RUI NING 20
IMO 9595682
|
75,564 | 2013 |
4.1
|
B |
| 1296 |
LILAC HARMONY
IMO 9780964
|
38,581 | 2020 |
4.1
|
B |
| 1295 |
HARLEQUIN
IMO 9979101
|
40,636 | 2023 |
4.1
|
B |
| 1294 |
LOWLANDS PATRASCHE
IMO 9979137
|
63,458 | 2024 |
4.1
|
B |
| 1293 |
GREEN K-MAX 4
IMO 9838084
|
80,891 | 2020 |
4.1
|
B |
| 1292 |
VICTORIA MAY
IMO 9730220
|
58,634 | 2016 |
4.1
|
B |
| 1291 |
XIN HAI TONG 52
IMO 9617478
|
56,799 | 2011 |
4.1
|
B |
| 1290 |
GOLDEN BRILLIANT
IMO 9438638
|
74,524 | 2013 |
4.1
|
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.