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 · 560 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 | 4,938 | 5–10% | €400k–1,200k | — | vendor claim |
| Bulbous bow reprofiling | 4,887 | 2–6% | €300k–900k | — | vendor claim |
| Methanol dual-fuel conversion | 3,009 | 5–15% | €8,000k–20,000k | — | vendor claim |
| Turbocharger cut-out | 2,539 | 1–3% | €80k–250k | — | vendor claim |
| LNG dual-fuel conversion | 2,443 | 15–25% | €15,000k–35,000k | — | vendor claim |
| Rotor sails (per unit) | 2,432 | route-dependent | €1,500k–3,500k | — | 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 |
|---|---|---|---|---|---|
| 2501 |
SEASTAR AVALON
IMO 9755921
|
36,184 | 2017 |
5.4
|
D |
| 2502 |
AFRICAN HARRIER
IMO 9700794
|
37,800 | 2014 |
5.4
|
D |
| 2503 |
WHITE FIN
IMO 9607291
|
56,780 | 2011 |
5.4
|
D |
| 2504 |
LACTA
IMO 9502362
|
58,713 | 2010 |
5.4
|
D |
| 2505 |
FEDERAL SPEY
IMO 9610456
|
37,141 | 2012 |
5.4
|
D |
| 2506 |
TIZIANA
IMO 9744764
|
35,443 | 2016 |
5.5
|
D |
| 2507 |
FEDERAL BRISTOL
IMO 9697844
|
34,564 | 2015 |
5.5
|
D |
| 2508 |
KIRANA NAREE
IMO 9434723
|
56,823 | 2011 |
5.5
|
D |
| 2509 |
BUNUN LEADER
IMO 9860609
|
37,650 | 2019 |
5.5
|
D |
| 2510 |
FEDERAL SETO
IMO 9267209
|
36,300 | 2004 |
5.5
|
D |
| 2511 |
JULIA
IMO 9820702
|
37,449 | 2018 |
5.5
|
D |
| 2512 |
KALLONE
IMO 9370006
|
55,840 | 2007 |
5.5
|
D |
| 2513 |
SPAR LIBRA
IMO 9328534
|
53,565 | 2006 |
5.5
|
D |
| 2514 |
DUBAI CROWN
IMO 9326378
|
55,338 | 2005 |
5.5
|
D |
| 2515 |
SEAGUARDIAN
IMO 9174268
|
75,462 | 1999 |
5.5
|
D |
| 2516 |
PEGASUS
IMO 9755842
|
34,958 | 2018 |
5.5
|
D |
| 2517 |
INTERLINK SOLIDITY
IMO 9711779
|
40,098 | 2017 |
5.5
|
D |
| 2518 |
CORAL ISLAND
IMO 9304112
|
55,699 | 2006 |
5.5
|
D |
| 2519 |
BREEZE
IMO 9455650
|
56,686 | 2009 |
5.5
|
D |
| 2520 |
TOMINI PAMPERO
IMO 9714771
|
38,635 | 2015 |
5.5
|
D |
| 2521 |
NORD RIO
IMO 9911977
|
39,956 | 2022 |
5.5
|
D |
| 2522 |
DESERT OASIS
IMO 9543782
|
57,436 | 2012 |
5.5
|
D |
| 2523 |
R SKYWALKER
IMO 9610248
|
36,332 | 2013 |
5.5
|
D |
| 2524 |
LAOURA
IMO 9762912
|
38,552 | 2017 |
5.5
|
D |
| 2525 |
PRIMUS
IMO 9310757
|
32,588 | 2006 |
5.5
|
D |
| 2526 |
NORSE ZEALAND
IMO 1033523
|
39,545 | 2025 |
5.5
|
D |
| 2527 |
ROSSANA
IMO 9696838
|
39,935 | 2016 |
5.5
|
D |
| 2528 |
ALICIA
IMO 9663623
|
63,351 | 2012 |
5.5
|
D |
| 2529 |
CHIOS FREEDOM
IMO 9680255
|
36,612 | 2015 |
5.5
|
D |
| 2530 |
CRYSTAL CONFIDENCE
IMO 9728382
|
34,874 | 2016 |
5.5
|
D |
| 2531 |
BAR
IMO 9693496
|
36,048 | 2014 |
5.5
|
D |
| 2532 |
TCZEW
IMO 9727493
|
39,000 | 2017 |
5.5
|
D |
| 2533 |
KIRAN ANATOLIA
IMO 9650171
|
63,478 | 2013 |
5.5
|
D |
| 2534 |
RELIABLE
IMO 9762900
|
38,603 | 2017 |
5.5
|
D |
| 2535 |
ECE NUR BAYRAKTAR
IMO 9480473
|
58,449 | 2007 |
5.5
|
D |
| 2536 |
S-BREEZE
IMO 9317145
|
52,454 | 2006 |
5.5
|
D |
| 2537 |
FENG MAO HAI
IMO 9747510
|
63,413 | 2017 |
5.5
|
D |
| 2538 |
AL DANAH
IMO 9614103
|
54,683 | 2011 |
5.5
|
D |
| 2539 |
NORD BREMEN
IMO 9979228
|
40,101 | 2024 |
5.5
|
D |
| 2540 |
FAUN
IMO 9748239
|
63,592 | 2015 |
5.5
|
D |
| 2541 |
RESOLUTE BAY
IMO 9626314
|
36,798 | 2012 |
5.5
|
D |
| 2542 |
JNS OCEAN
IMO 1044508
|
40,495 | 2024 |
5.5
|
D |
| 2543 |
TOMINI SOLANO
IMO 9711731
|
38,834 | 2016 |
5.5
|
D |
| 2544 |
MDS SOFIA
IMO 9609689
|
37,405 | 2012 |
5.5
|
D |
| 2545 |
ALDA
IMO 9638135
|
39,202 | 2014 |
5.5
|
D |
| 2546 |
INCE EGE
IMO 9436733
|
57,373 | 2010 |
5.5
|
D |
| 2547 |
BONTRUP AMSTERDAM
IMO 8110681
|
59,954 | 1984 |
5.5
|
D |
| 2548 |
HOIHOW
IMO 9714238
|
39,721 | 2016 |
5.5
|
D |
| 2549 |
TOMINI MISTRAL
IMO 9754094
|
39,099 | 2016 |
5.5
|
D |
| 2550 |
ANNA-META
IMO 9514406
|
56,280 | 2010 |
5.5
|
D |
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.