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 |
|---|---|---|---|---|---|
| 302 |
JEN LR
IMO 9947249
|
82,411 | 2023 |
3.0
|
A |
| 301 |
ROYAL NEPTUNE
IMO 9851517
|
80,873 | 2020 |
3.0
|
A |
| 303 |
BABY HERCULES
IMO 9478822
|
110,861 | 2011 |
3.0
|
A |
| 308 |
THUNDER ISLAND
IMO 9897901
|
82,558 | 2021 |
3.0
|
A |
| 306 |
GEMMA
IMO 9602784
|
313,049 | 2012 |
3.0
|
A |
| 309 |
PORT FUKUOKA
IMO 9932799
|
64,611 | 2021 |
3.0
|
A |
| 305 |
JAG AMAR
IMO 9723851
|
82,083 | 2017 |
3.0
|
A |
| 307 |
PENGLAI
IMO 9952438
|
82,236 | 2023 |
3.0
|
A |
| 304 |
EPIC RADIANCE
IMO 9970234
|
82,555 | 2024 |
3.0
|
A |
| 310 |
MARINI
IMO 9639529
|
205,855 | 2014 |
3.0
|
A |
| 311 |
ARTEMIS I
IMO 9830991
|
80,976 | 2019 |
3.0
|
A |
| 315 |
AQUAVITA WEALTH
IMO 9985784
|
64,700 | 2024 |
3.1
|
A |
| 314 |
EASTERN GLAMOUR
IMO 9459345
|
115,461 | 2011 |
3.1
|
A |
| 313 |
CHAILEASE BLOSSOM
IMO 9622540
|
82,146 | 2013 |
3.1
|
A |
| 312 |
RIO DULCE
IMO 9501617
|
178,076 | 2011 |
3.1
|
A |
| 316 |
SSI INTERCEPTOR
IMO 9919008
|
63,896 | 2023 |
3.1
|
A |
| 317 |
HSL VEGAS
IMO 9928372
|
81,981 | 2022 |
3.1
|
A |
| 319 |
PEDHOULAS COMMANDER
IMO 9381524
|
83,685 | 2008 |
3.1
|
A |
| 318 |
PYXIS OCEAN
IMO 9798856
|
79,898 | 2017 |
3.1
|
A |
| 320 |
LEO IRIS
IMO 9709001
|
81,820 | 2015 |
3.1
|
A |
| 321 |
MG MERCURY
IMO 9774290
|
84,790 | 2016 |
3.1
|
A |
| 324 |
NBA RUBENS
IMO 9477220
|
107,290 | 2011 |
3.1
|
A |
| 323 |
EPIC HARMONY
IMO 9922005
|
82,546 | 2021 |
3.1
|
A |
| 322 |
CL ZHANGJIAJIE
IMO 9953365
|
64,766 | 2024 |
3.1
|
A |
| 327 |
BW MATSUYAMA
IMO 9836488
|
81,810 | 2019 |
3.1
|
A |
| 326 |
BTG MISTI
IMO 9952488
|
82,235 | 2023 |
3.1
|
A |
| 325 |
CLIVIA OLDENDORFF
IMO 9599195
|
98,704 | 2013 |
3.1
|
A |
| 329 |
PENELOPE OLDENDORFF
IMO 9464596
|
114,861 | 2010 |
3.1
|
A |
| 328 |
MAIRAKI
IMO 9444546
|
181,016 | 2011 |
3.1
|
A |
| 330 |
SEACON TOKYO
IMO 9941958
|
66,628 | 2023 |
3.1
|
A |
| 332 |
JOSCO DAZHOU
IMO 9934187
|
64,247 | 2022 |
3.1
|
A |
| 331 |
NAVIOS FULVIA
IMO 9500986
|
179,263 | 2006 |
3.1
|
A |
| 334 |
SEACON HAMBURG
IMO 9936276
|
85,505 | 2023 |
3.1
|
A |
| 333 |
SASEBO GREEN
IMO 9675468
|
77,880 | 2014 |
3.1
|
A |
| 337 |
AQUAVITA AIR
IMO 9846110
|
82,192 | 2020 |
3.1
|
A |
| 338 |
TRUSTN TRADER
IMO 9937555
|
82,245 | 2023 |
3.1
|
A |
| 336 |
CMB RUBENS
IMO 9832640
|
63,514 | 2018 |
3.1
|
A |
| 344 |
PUPLINGE
IMO 9782156
|
81,672 | 2016 |
3.1
|
A |
| 339 |
BBG MUARA
IMO 9929003
|
81,991 | 2022 |
3.1
|
A |
| 335 |
KYPROS BRAVERY
IMO 9694490
|
77,997 | 2015 |
3.1
|
A |
| 343 |
SEAGEM
IMO 9758375
|
81,714 | 2019 |
3.1
|
A |
| 342 |
SEAHUNTER
IMO 9974424
|
63,253 | 2024 |
3.1
|
A |
| 341 |
OCEANIA GRAECA
IMO 9841952
|
82,033 | 2019 |
3.1
|
A |
| 340 |
MEDI EGADI
IMO 9802217
|
81,874 | 2018 |
3.1
|
A |
| 345 |
LUCKY JESSICA
IMO 9332793
|
77,247 | 2006 |
3.1
|
A |
| 350 |
MYRTO C
IMO 9752383
|
81,011 | 2017 |
3.1
|
A |
| 349 |
ORCHID ISLAND
IMO 9987251
|
81,996 | 2024 |
3.1
|
A |
| 348 |
PHILIPP OLDENDORFF
IMO 9540869
|
115,156 | 2011 |
3.1
|
A |
| 347 |
PRAIRIE
IMO 9860506
|
81,614 | 2019 |
3.1
|
A |
| 346 |
OUTLANDER
IMO 9218337
|
45,526 | 2000 |
3.1
|
A |
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.