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 · 631 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 | 3,866 | 1–3% | €80k–250k | — | vendor claim |
| Rotor sails (per unit) | 3,674 | route-dependent | €1,500k–3,500k | — | vendor claim |
| Suction wing sails (per unit) | 3,674 | 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 |
|---|---|---|---|---|---|
| 504 |
BEAVER
IMO 9746695
|
81,769 | 2017 |
3.3
|
A |
| 501 |
GCL LEADER
IMO 9902550
|
81,946 | 2021 |
3.3
|
A |
| 499 |
GRAND OCEAN
IMO 9949651
|
82,689 | 2023 |
3.3
|
A |
| 503 |
YU XIAO FENG
IMO 9606431
|
75,398 | 2012 |
3.3
|
A |
| 502 |
AM SHRADDHA
IMO 9837004
|
81,754 | 2019 |
3.3
|
A |
| 511 |
JING LU HAI
IMO 9747558
|
77,927 | 2015 |
3.3
|
A |
| 510 |
AP DUBROVNIK
IMO 9952660
|
82,249 | 2023 |
3.3
|
A |
| 509 |
BBG HECHI
IMO 9929039
|
82,037 | 2022 |
3.3
|
A |
| 508 |
TORO
IMO 9443009
|
76,636 | 2008 |
3.3
|
A |
| 507 |
MAIA
IMO 9422938
|
82,193 | 2009 |
3.3
|
A |
| 512 |
LIVORNO
IMO 9855549
|
81,651 | 2019 |
3.3
|
A |
| 506 |
ASTRO SIRIUS
IMO 9848077
|
63,562 | 2019 |
3.3
|
A |
| 513 |
MONDIAL COSMOS
IMO 9801196
|
81,611 | 2017 |
3.3
|
A |
| 517 |
CHASSELAS
IMO 9840506
|
81,758 | 2019 |
3.3
|
A |
| 520 |
SEACON SHANGHAI
IMO 9847889
|
80,811 | 2019 |
3.3
|
A |
| 516 |
PORT OSHIMA
IMO 9932804
|
64,624 | 2022 |
3.3
|
A |
| 523 |
HAMPTON OCEAN
IMO 9798844
|
80,979 | 2017 |
3.3
|
A |
| 522 |
LOWLANDS FREEDOM
IMO 9942158
|
64,481 | 2023 |
3.3
|
A |
| 521 |
PISTI
IMO 9893503
|
81,737 | 2021 |
3.3
|
A |
| 515 |
NEFELI
IMO 9317468
|
77,171 | 2009 |
3.3
|
A |
| 519 |
ATHINA II
IMO 9724192
|
82,014 | 2015 |
3.3
|
A |
| 514 |
ATROTOS HERACLES
IMO 9668879
|
81,922 | 2014 |
3.3
|
A |
| 518 |
NORD POLARIS
IMO 9728198
|
81,791 | 2016 |
3.3
|
A |
| 525 |
IONIC KIBOU
IMO 9582556
|
81,889 | 2015 |
3.4
|
A |
| 524 |
VOLUTINA
IMO 9929338
|
82,408 | 2022 |
3.4
|
A |
| 526 |
KEY FRONTIER
IMO 9454292
|
80,679 | 2011 |
3.4
|
A |
| 530 |
MARTINE
IMO 9411537
|
86,949 | 2009 |
3.4
|
A |
| 529 |
BBG GRACE
IMO 9702704
|
81,952 | 2015 |
3.4
|
A |
| 532 |
SPAR MAIA
IMO 1015155
|
63,550 | 2024 |
3.4
|
A |
| 528 |
KYOTO STAR
IMO 9740811
|
84,956 | 2016 |
3.4
|
A |
| 531 |
THREE SASKIAS
IMO 9689811
|
81,094 | 2014 |
3.4
|
A |
| 527 |
ARIANA
IMO 9828297
|
81,011 | 2019 |
3.4
|
A |
| 537 |
XING FU HAI
IMO 9949302
|
85,038 | 2022 |
3.4
|
A |
| 539 |
YASA MARS
IMO 9848120
|
61,081 | 2019 |
3.4
|
A |
| 536 |
SFERA
IMO 9304576
|
76,801 | 2006 |
3.4
|
A |
| 535 |
DIAMOND POWER
IMO 9566590
|
107,235 | 2013 |
3.4
|
A |
| 534 |
MARINE GLORY
IMO 9606754
|
114,047 | 2014 |
3.4
|
A |
| 533 |
MSXT THALIA
IMO 9929326
|
85,204 | 2022 |
3.4
|
A |
| 538 |
STAR MARIA
IMO 9401489
|
82,598 | 2007 |
3.4
|
A |
| 543 |
ASTRO VEGA
IMO 9720299
|
63,008 | 2015 |
3.4
|
A |
| 544 |
ASIAN ETERNITY
IMO 9991472
|
64,683 | 2024 |
3.4
|
A |
| 542 |
ANNA-DOROTHEA
IMO 9482213
|
55,646 | 2008 |
3.4
|
A |
| 545 |
DARYA MA
IMO 9591674
|
81,874 | 2011 |
3.4
|
A |
| 541 |
S SAMBA
IMO 9712486
|
84,867 | 2013 |
3.4
|
A |
| 540 |
ROYAL PEARL
IMO 9941972
|
63,535 | 2023 |
3.4
|
A |
| 550 |
HSL NASSAU
IMO 9802310
|
63,805 | 2020 |
3.4
|
A |
| 549 |
AFRICAN DRAGON
IMO 9990416
|
66,647 | 2024 |
3.4
|
A |
| 548 |
ANGLO JESSICA
IMO 9490480
|
114,664 | 2010 |
3.4
|
A |
| 547 |
POMONE
IMO 9926130
|
82,247 | 2021 |
3.4
|
A |
| 546 |
CL GANJIANG
IMO 9953327
|
64,747 | 2023 |
3.4
|
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.