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 2025. 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 · 519 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 | 3,664 | 1–3% | €80k–250k | — | vendor claim |
| Rotor sails (per unit) | 3,455 | route-dependent | €1,500k–3,500k | — | vendor claim |
| Suction wing sails (per unit) | 3,455 | 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 |
|---|---|---|---|---|---|
| 1401 |
KONSTANTINOS D
IMO 9972608
|
63,516 | 2024 |
4.1
|
C |
| 1400 |
STAR SANTOS
IMO 9699347
|
63,537 | 2015 |
4.1
|
C |
| 1399 |
TOMINI KAIMAI
IMO 9709269
|
40,112 | 2013 |
4.1
|
C |
| 1398 |
HSL KENSINGTON
IMO 9950648
|
64,452 | 2023 |
4.1
|
C |
| 1397 |
AMANI
IMO 9729910
|
61,436 | 2016 |
4.1
|
C |
| 1406 |
MARINA
IMO 9309497
|
87,036 | 2006 |
4.1
|
C |
| 1409 |
STAR ELIZABETH
IMO 9917488
|
82,403 | 2021 |
4.1
|
C |
| 1411 |
THRASYVOULOS V
IMO 9767493
|
61,214 | 2016 |
4.1
|
C |
| 1408 |
EQUINOX EAGLE
IMO 9711298
|
61,208 | 2015 |
4.1
|
C |
| 1416 |
KAVO PERDIKA
IMO 9584889
|
58,740 | 2013 |
4.1
|
C |
| 1413 |
TRAMP LADY
IMO 9286621
|
76,294 | 2005 |
4.1
|
C |
| 1412 |
ALEXANDROS P.
IMO 9723045
|
63,127 | 2017 |
4.1
|
C |
| 1407 |
AGIOS MAKARIOS
IMO 9474709
|
80,929 | 2017 |
4.1
|
C |
| 1415 |
ZOITSA SIGALA
IMO 9700861
|
63,350 | 2014 |
4.1
|
C |
| 1414 |
PLANA
IMO 9835769
|
47,096 | 2019 |
4.1
|
C |
| 1410 |
YANGZE 8
IMO 9725732
|
63,515 | 2014 |
4.1
|
C |
| 1420 |
SEAHABIT
IMO 9974400
|
63,264 | 2024 |
4.1
|
C |
| 1419 |
NEW EXPLORER
IMO 9481489
|
79,448 | 2014 |
4.1
|
C |
| 1421 |
LOCARNO
IMO 9461453
|
82,188 | 2011 |
4.1
|
C |
| 1418 |
JAHAN I
IMO 9817535
|
61,221 | 2018 |
4.1
|
C |
| 1424 |
MARKET COOPER
IMO 9874557
|
61,223 | 2015 |
4.1
|
C |
| 1422 |
GREAT QIN
IMO 9766918
|
64,928 | 2017 |
4.1
|
C |
| 1417 |
FEDERAL MASAMUNE
IMO 9908310
|
62,464 | 2021 |
4.1
|
C |
| 1423 |
CL FUZHOU HE
IMO 9890630
|
63,125 | 2021 |
4.1
|
C |
| 1425 |
SPAR PAVO
IMO 9735012
|
63,266 | 2016 |
4.1
|
C |
| 1426 |
GRAMBA
IMO 9917048
|
61,233 | 2021 |
4.1
|
C |
| 1431 |
LILAS CALM
IMO 9633264
|
61,473 | 2012 |
4.1
|
C |
| 1436 |
XIN HUA
IMO 9316153
|
55,435 | 2005 |
4.1
|
C |
| 1430 |
ONE OCEAN
IMO 9460904
|
82,654 | 2009 |
4.1
|
C |
| 1435 |
STAR AMETHYST
IMO 9523251
|
82,123 | 2009 |
4.1
|
C |
| 1434 |
VAN HANNAH
IMO 9965021
|
63,926 | 2023 |
4.1
|
C |
| 1433 |
VICTORIA
IMO 9738466
|
61,613 | 2016 |
4.1
|
C |
| 1429 |
ALASIA
IMO 9700873
|
61,311 | 2014 |
4.1
|
C |
| 1428 |
ALGOMA VICTORY
IMO 9138109
|
70,037 | 2000 |
4.1
|
C |
| 1427 |
ARTEMIS E
IMO 9657789
|
63,200 | 2011 |
4.1
|
C |
| 1432 |
XIN BO
IMO 9324655
|
52,424 | 2006 |
4.1
|
C |
| 1440 |
SANTA BRISA
IMO 9951771
|
63,367 | 2023 |
4.1
|
C |
| 1439 |
YM IMPRESSION
IMO 9764001
|
81,914 | 2016 |
4.1
|
C |
| 1438 |
ZHENG ZHI
IMO 9596090
|
81,804 | 2013 |
4.1
|
C |
| 1444 |
NEW VENTURE
IMO 9497622
|
79,415 | 2014 |
4.1
|
C |
| 1443 |
GREAT PROGRESS
IMO 9728655
|
63,377 | 2015 |
4.1
|
C |
| 1442 |
SM SAMCHEONPO
IMO 9842487
|
80,943 | 2019 |
4.1
|
C |
| 1441 |
GOOD HEART
IMO 9669380
|
62,996 | 2014 |
4.1
|
C |
| 1437 |
CRIMSON SPOONBILL
IMO 9701712
|
60,033 | 2016 |
4.1
|
C |
| 1450 |
BEI LUN HAI SHI
IMO 9207766
|
75,971 | 2001 |
4.1
|
C |
| 1449 |
CRYSTAL PIONEER
IMO 9363118
|
64,510 | 2008 |
4.1
|
C |
| 1448 |
PACIFIC VALOR
IMO 9712503
|
63,564 | 2015 |
4.1
|
C |
| 1447 |
ST. SOFIA
IMO 9799630
|
60,424 | 2018 |
4.1
|
C |
| 1446 |
PANAFRICAN
IMO 9350343
|
83,690 | 2008 |
4.1
|
C |
| 1445 |
WECO TATI
IMO 1027017
|
63,590 | 2025 |
4.1
|
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 2025 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.