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 · 638 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 | 4,937 | 5–10% | €400k–1,200k | — | vendor claim |
| Bulbous bow reprofiling | 4,887 | 2–6% | €300k–900k | — | vendor claim |
| Turbocharger cut-out | 3,916 | 1–3% | €80k–250k | — | vendor claim |
| Rotor sails (per unit) | 3,723 | route-dependent | €1,500k–3,500k | — | vendor claim |
| Suction wing sails (per unit) | 3,723 | route-dependent | €1,000k–2,500k | — | vendor claim |
| Methanol dual-fuel conversion | 3,025 | 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 |
|---|---|---|---|---|---|
| 351 |
ORCHID ISLAND
IMO 9987251
|
81,996 | 2024 |
3.1
|
A |
| 350 |
MYRTO C
IMO 9752383
|
81,011 | 2017 |
3.1
|
A |
| 349 |
CSSC AMSTERDAM
IMO 9853890
|
120,566 | 2020 |
3.1
|
A |
| 354 |
SAKIZAYA QUEEN
IMO 9783148
|
81,858 | 2018 |
3.1
|
A |
| 357 |
MEDI ARGENTARIO
IMO 9771298
|
89,499 | 2015 |
3.1
|
A |
| 356 |
HSL TAMPA
IMO 9781035
|
81,818 | 2017 |
3.1
|
A |
| 355 |
NAVIOS ALEGRIA
IMO 9757785
|
84,852 | 2016 |
3.1
|
A |
| 358 |
AOM ELENA
IMO 9970246
|
82,550 | 2024 |
3.1
|
A |
| 359 |
EMERALD PUTUO
IMO 9936240
|
85,610 | 2022 |
3.1
|
A |
| 364 |
MEDI PALMAROLA
IMO 9802205
|
81,874 | 2018 |
3.1
|
A |
| 363 |
KARPATY
IMO 9582506
|
82,138 | 2013 |
3.1
|
A |
| 362 |
PREGNY
IMO 9925746
|
82,628 | 2022 |
3.1
|
A |
| 361 |
SM SAMCHEONPO
IMO 9842487
|
80,943 | 2019 |
3.1
|
A |
| 360 |
PINCHAT
IMO 9758466
|
81,828 | 2018 |
3.1
|
A |
| 366 |
URSULA MANX
IMO 9900095
|
82,561 | 2021 |
3.1
|
A |
| 365 |
CORNALIN
IMO 9947263
|
82,403 | 2023 |
3.1
|
A |
| 369 |
ALBATROSS
IMO 9937256
|
82,411 | 2023 |
3.1
|
A |
| 372 |
THALASSINI AVRA
IMO 9500704
|
180,643 | 2011 |
3.1
|
A |
| 368 |
ALBA
IMO 9493755
|
175,232 | 2012 |
3.1
|
A |
| 371 |
KMAX RULER
IMO 9436642
|
91,800 | 2009 |
3.1
|
A |
| 367 |
MORNING CLOUD
IMO 9532197
|
74,962 | 2011 |
3.1
|
A |
| 370 |
MEDI EOLIE
IMO 9728186
|
81,845 | 2016 |
3.1
|
A |
| 373 |
ENERGY GLORY
IMO 9518074
|
82,123 | 2013 |
3.2
|
A |
| 374 |
CHARM LOONG
IMO 9464390
|
76,636 | 2008 |
3.2
|
A |
| 375 |
AQUAPRIMA
IMO 9933248
|
82,270 | 2022 |
3.2
|
A |
| 387 |
MAPLE WISDOM
IMO 9964663
|
82,253 | 2023 |
3.2
|
A |
| 386 |
MOUDROS
IMO 9952414
|
82,177 | 2022 |
3.2
|
A |
| 385 |
ROSTRUM CYNIC
IMO 9955909
|
82,216 | 2023 |
3.2
|
A |
| 384 |
SERENDIPITY
IMO 9906465
|
82,298 | 2021 |
3.2
|
A |
| 383 |
BW NARA
IMO 9836373
|
81,759 | 2020 |
3.2
|
A |
| 382 |
DORIC KATANA
IMO 9897585
|
82,448 | 2021 |
3.2
|
A |
| 381 |
EMERALD DAISHAN
IMO 9981295
|
85,516 | 2023 |
3.2
|
A |
| 380 |
BABITONGA
IMO 9858292
|
81,770 | 2019 |
3.2
|
A |
| 379 |
ETG AQUARIUS
IMO 9928384
|
81,976 | 2022 |
3.2
|
A |
| 378 |
LOWLANDS IYO
IMO 9987249
|
82,019 | 2024 |
3.2
|
A |
| 377 |
LEMAN TRADER
IMO 9846093
|
82,192 | 2019 |
3.2
|
A |
| 376 |
LOWLANDS SKY
IMO 9933262
|
82,281 | 2023 |
3.2
|
A |
| 388 |
KYPROS SEA
IMO 9675602
|
77,128 | 2014 |
3.2
|
A |
| 390 |
CL HUAIHUA
IMO 9953353
|
64,784 | 2024 |
3.2
|
A |
| 392 |
NORDIC SIKU
IMO 9895800
|
95,758 | 2021 |
3.2
|
A |
| 391 |
LOWLANDS AMBITION
IMO 9947287
|
82,400 | 2024 |
3.2
|
A |
| 389 |
CSSC CAPE TOWN
IMO 9853888
|
120,578 | 2020 |
3.2
|
A |
| 395 |
YANGZE 6
IMO 9718909
|
63,478 | 2014 |
3.2
|
A |
| 398 |
ASCANIOS
IMO 9276169
|
76,878 | 2004 |
3.2
|
A |
| 397 |
ARISTOTELES GRAECIA
IMO 9843766
|
82,096 | 2020 |
3.2
|
A |
| 396 |
SHINE PEARL
IMO 9971496
|
82,427 | 2024 |
3.2
|
A |
| 394 |
JAG AALOK
IMO 9706566
|
82,023 | 2016 |
3.2
|
A |
| 393 |
SUDETY
IMO 9582518
|
82,138 | 2013 |
3.2
|
A |
| 400 |
EOLOS G
IMO 9623738
|
81,817 | 2014 |
3.2
|
A |
| 399 |
YM NAVIGATOR
IMO 9518191
|
81,955 | 2014 |
3.2
|
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.