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 · 627 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 | 4,927 | 5–10% | €400k–1,200k | — | vendor claim |
| Bulbous bow reprofiling | 4,877 | 2–6% | €300k–900k | — | vendor claim |
| Turbocharger cut-out | 3,836 | 1–3% | €80k–250k | — | vendor claim |
| Rotor sails (per unit) | 3,636 | route-dependent | €1,500k–3,500k | — | vendor claim |
| Suction wing sails (per unit) | 3,636 | route-dependent | €1,000k–2,500k | — | vendor claim |
| Methanol dual-fuel conversion | 3,021 | 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 |
|---|---|---|---|---|---|
| 1399 |
SAMOA
IMO 9473157
|
75,505 | 2010 |
4.2
|
B |
| 1407 |
BIRDIE
IMO 9726243
|
60,269 | 2015 |
4.2
|
B |
| 1406 |
GOLDEN OPAL
IMO 9470404
|
74,232 | 2017 |
4.2
|
B |
| 1405 |
ASTREA
IMO 9705366
|
81,838 | 2015 |
4.2
|
B |
| 1404 |
PALM ISLAND
IMO 9624641
|
61,470 | 2012 |
4.2
|
B |
| 1403 |
MALYOVITSA
IMO 9835795
|
45,516 | 2020 |
4.2
|
B |
| 1402 |
CAPE PROVIDENCE
IMO 9494228
|
179,643 | 2009 |
4.2
|
B |
| 1410 |
SILVER LADY
IMO 9279367
|
50,329 | 2003 |
4.2
|
B |
| 1409 |
HARMONY
IMO 9449522
|
32,453 | 2010 |
4.2
|
B |
| 1411 |
GENIUS SW
IMO 9511052
|
60,200 | 2015 |
4.2
|
B |
| 1408 |
KARPATHOS DAWN
IMO 9427342
|
56,700 | 2010 |
4.2
|
B |
| 1413 |
DESERT GRACE
IMO 9849502
|
63,553 | 2015 |
4.2
|
B |
| 1412 |
SINOKOR SUNRISE
IMO 9602148
|
77,730 | 2011 |
4.2
|
B |
| 1423 |
MYKONOS
IMO 9633410
|
81,386 | 2013 |
4.2
|
B |
| 1422 |
HAPPINESS BULKER
IMO 9919515
|
37,694 | 2023 |
4.2
|
B |
| 1421 |
AEOLIAN ARROW
IMO 9671814
|
82,053 | 2018 |
4.2
|
B |
| 1420 |
ULTRA VISION
IMO 9878694
|
61,119 | 2020 |
4.2
|
B |
| 1419 |
NEW ACACIA
IMO 1014591
|
39,415 | 2022 |
4.2
|
B |
| 1418 |
ETG SOUTHERN CROSS
IMO 9888015
|
63,482 | 2021 |
4.2
|
B |
| 1417 |
ABILITY
IMO 9908281
|
64,253 | 2021 |
4.2
|
B |
| 1416 |
JADE PROSPERITY
IMO 9656096
|
63,756 | 2014 |
4.2
|
B |
| 1415 |
G TAISHAN
IMO 9440992
|
58,780 | 2008 |
4.2
|
B |
| 1414 |
NEW ENDEAVOR
IMO 9579638
|
80,536 | 2011 |
4.2
|
B |
| 1424 |
UNITY DISCOVERY
IMO 9726047
|
60,629 | 2017 |
4.2
|
C |
| 1426 |
ALLIANCE
IMO 9552824
|
83,369 | 2010 |
4.2
|
C |
| 1429 |
JOSCO DEZHOU
IMO 9683439
|
61,657 | 2014 |
4.2
|
C |
| 1428 |
GOLDEN AMBER
IMO 9458987
|
74,753 | 2017 |
4.2
|
C |
| 1427 |
NEARCHOS
IMO 9852030
|
61,148 | 2019 |
4.2
|
C |
| 1425 |
ASPASIA LUCK
IMO 9223485
|
72,270 | 2000 |
4.2
|
C |
| 1430 |
CL TOMO
IMO 9908279
|
64,273 | 2021 |
4.2
|
C |
| 1431 |
DESERT RANGER
IMO 9699854
|
61,146 | 2017 |
4.2
|
C |
| 1435 |
NKR ALICE
IMO 9914515
|
61,217 | 2022 |
4.2
|
C |
| 1434 |
ALANOOD
IMO 9837121
|
80,681 | 2020 |
4.2
|
C |
| 1433 |
GRIZZLY
IMO 9659232
|
81,394 | 2013 |
4.2
|
C |
| 1432 |
KIRA OLDENDORFF
IMO 9867566
|
81,290 | 2020 |
4.2
|
C |
| 1438 |
ANDROS SPIRIT
IMO 9592537
|
82,740 | 2012 |
4.2
|
C |
| 1437 |
PROPEL GRACE
IMO 9605023
|
61,439 | 2012 |
4.2
|
C |
| 1436 |
PRT ACE
IMO 9713466
|
61,290 | 2014 |
4.2
|
C |
| 1442 |
BULK INDEPENDENCE
IMO 9374002
|
56,548 | 2008 |
4.2
|
C |
| 1441 |
AGIA FOTINI
IMO 9544164
|
38,140 | 2012 |
4.2
|
C |
| 1443 |
SARIKA NAREE
IMO 9726425
|
63,023 | 2015 |
4.2
|
C |
| 1440 |
SYLVIA
IMO 9471264
|
80,282 | 2010 |
4.2
|
C |
| 1439 |
GNG CONCORD 1
IMO 9629653
|
75,397 | 2010 |
4.2
|
C |
| 1450 |
WESTERN TOKYO
IMO 9838498
|
62,647 | 2019 |
4.2
|
C |
| 1449 |
CASTILLO DE NAVIA
IMO 9722974
|
119,612 | 2015 |
4.2
|
C |
| 1448 |
SHEILA
IMO 9730244
|
58,608 | 2013 |
4.2
|
C |
| 1447 |
EFFIE
IMO 9591806
|
81,911 | 2012 |
4.2
|
C |
| 1446 |
ETERNITY SW
IMO 9425851
|
58,098 | 2011 |
4.2
|
C |
| 1445 |
INTERLINK PRIORITY
IMO 9725902
|
43,477 | 2017 |
4.2
|
C |
| 1444 |
GOLDEN PEARL
IMO 9470375
|
74,300 | 2013 |
4.2
|
C |
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.