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 · 632 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 |
|---|---|---|---|---|---|
| 2451 |
SSI INVINCIBLE II
IMO 9434747
|
56,815 | 2012 |
5.5
|
D |
| 2452 |
NORMA
IMO 9490739
|
58,018 | 2010 |
5.5
|
D |
| 2453 |
BIRGIT
IMO 9965655
|
39,988 | 2024 |
5.5
|
D |
| 2454 |
ALANDA STAR
IMO 9189677
|
31,828 | 1999 |
5.5
|
D |
| 2455 |
OCEAN GRACIOUS
IMO 9642174
|
38,276 | 2013 |
5.5
|
D |
| 2456 |
KEN UN
IMO 9727089
|
37,429 | 2015 |
5.5
|
D |
| 2457 |
BLUE FIN
IMO 9607277
|
56,780 | 2011 |
5.5
|
D |
| 2458 |
KAPTAN ARIF BAYRAKTAR
IMO 9449560
|
57,452 | 2010 |
5.5
|
D |
| 2459 |
MARIA 1921
IMO 9561796
|
35,013 | 2011 |
5.5
|
D |
| 2460 |
ANSAC WYOMING
IMO 9713777
|
33,117 | 2015 |
5.5
|
D |
| 2461 |
BUNUN QUEEN
IMO 9912438
|
37,299 | 2022 |
5.5
|
D |
| 2462 |
NEWCHANG
IMO 9753272
|
40,101 | 2017 |
5.5
|
D |
| 2463 |
IONIAN SPIRIT
IMO 9747235
|
39,359 | 2016 |
5.5
|
D |
| 2464 |
FEDERAL BARENTS
IMO 9697820
|
34,564 | 2015 |
5.5
|
D |
| 2465 |
ADVENTURE
IMO 9749972
|
34,487 | 2019 |
5.5
|
D |
| 2466 |
BUNUN INFINITY
IMO 9732436
|
37,654 | 2016 |
5.5
|
D |
| 2467 |
ALMYROS
IMO 9584138
|
56,768 | 2010 |
5.5
|
D |
| 2468 |
HAMBURG WAY
IMO 9743227
|
39,377 | 2016 |
5.5
|
D |
| 2469 |
FEDERAL MONTREAL
IMO 9838474
|
34,492 | 2019 |
5.5
|
D |
| 2470 |
BERGE BEN NEVIS
IMO 9782974
|
37,681 | 2017 |
5.5
|
D |
| 2471 |
MERAIO
IMO 9502817
|
35,214 | 2011 |
5.5
|
D |
| 2472 |
CIELO DEI MARONTI
IMO 9808352
|
37,133 | 2017 |
5.5
|
D |
| 2473 |
MINNEAPOLIS MIYO
IMO 9875721
|
38,209 | 2020 |
5.5
|
D |
| 2474 |
THOR MONADIC
IMO 9331220
|
56,026 | 2006 |
5.5
|
D |
| 2475 |
BREEZE
IMO 9455650
|
56,686 | 2009 |
5.5
|
D |
| 2476 |
GABRIELLA
IMO 9522908
|
36,892 | 2013 |
5.5
|
D |
| 2477 |
FEDERAL KIVALINA
IMO 9205885
|
36,578 | 2000 |
5.5
|
D |
| 2478 |
ZEYNEP C
IMO 9232151
|
53,806 | 2003 |
5.5
|
D |
| 2479 |
TANIA
IMO 9689562
|
37,188 | 2014 |
5.5
|
D |
| 2480 |
AMBER S
IMO 9200354
|
47,282 | 2000 |
5.5
|
D |
| 2481 |
FEDERAL FRANKLIN
IMO 9866732
|
34,492 | 2021 |
5.5
|
D |
| 2482 |
PVT GLORIA
IMO 9583691
|
35,697 | 2011 |
5.5
|
D |
| 2483 |
ASL TRINITY
IMO 9780952
|
38,607 | 2015 |
5.5
|
D |
| 2484 |
INASA
IMO 9891012
|
38,129 | 2020 |
5.5
|
D |
| 2485 |
SZCZECIN
IMO 9594224
|
37,930 | 2012 |
5.5
|
D |
| 2486 |
EVEREST
IMO 9652131
|
57,480 | 2012 |
5.5
|
D |
| 2487 |
HARVESTER
IMO 9777711
|
37,600 | 2017 |
5.5
|
D |
| 2488 |
ALKYONIS
IMO 9709465
|
37,418 | 2016 |
5.5
|
D |
| 2489 |
IKUCHI ISLAND
IMO 9767443
|
37,561 | 2018 |
5.5
|
D |
| 2490 |
FUTURE
IMO 9566447
|
56,128 | 2012 |
5.5
|
D |
| 2491 |
PORT NAVIGATOR
IMO 9261750
|
35,107 | 2002 |
5.5
|
D |
| 2492 |
AP REVELIN
IMO 9694696
|
38,795 | 2016 |
5.5
|
D |
| 2493 |
TCZEW
IMO 9727493
|
39,099 | 2017 |
5.5
|
D |
| 2494 |
CIARA ENTERPRISE
IMO 9749403
|
33,428 | 2017 |
5.5
|
D |
| 2495 |
TOMINI ALIZE
IMO 9754082
|
39,045 | 2014 |
5.5
|
D |
| 2496 |
ISE HARMONY
IMO 9881158
|
39,955 | 2020 |
5.5
|
D |
| 2497 |
GENCO LANGUEDOC
IMO 9490686
|
58,020 | 2010 |
5.5
|
D |
| 2498 |
PISTI
IMO 9456367
|
56,898 | 2011 |
5.5
|
D |
| 2499 |
PAN IMPERIAL
IMO 9699361
|
63,567 | 2016 |
5.5
|
D |
| 2500 |
FRANZ SCHULTE
IMO 9861160
|
39,887 | 2020 |
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 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.