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 |
|---|---|---|---|---|---|
| 2301 |
SPAR CORONA
IMO 9497830
|
58,018 | 2011 |
5.2
|
D |
| 2302 |
WADI ALYARMOUK
IMO 9460772
|
80,384 | 2010 |
5.2
|
D |
| 2303 |
CL PROSPERITY
IMO 1041790
|
40,409 | 2024 |
5.2
|
D |
| 2304 |
FEDERAL LEXI ROSE
IMO 9975442
|
34,763 | 2025 |
5.2
|
D |
| 2305 |
SOFIA
IMO 9472086
|
56,899 | 2011 |
5.2
|
D |
| 2306 |
OCEAN CROWN
IMO 9866653
|
37,870 | 2020 |
5.2
|
D |
| 2307 |
ANNA-DOROTHEA
IMO 9482213
|
55,646 | 2008 |
5.2
|
D |
| 2308 |
FLORENTIA
IMO 9714666
|
63,340 | 2016 |
5.2
|
D |
| 2309 |
PABELA
IMO 9468126
|
55,389 | 2011 |
5.2
|
D |
| 2310 |
OCEANBEAUTY
IMO 9641338
|
56,715 | 2013 |
5.2
|
D |
| 2311 |
SARITA NAREE
IMO 9726413
|
62,964 | 2015 |
5.2
|
D |
| 2312 |
SUMATRA
IMO 9753260
|
38,943 | 2016 |
5.2
|
D |
| 2313 |
SERENE AMELIA
IMO 9567958
|
57,238 | 2010 |
5.2
|
D |
| 2314 |
FEDERAL YUKINA
IMO 9476977
|
35,868 | 2010 |
5.2
|
D |
| 2315 |
NIKOLAOS S
IMO 9473315
|
75,020 | 2010 |
5.2
|
D |
| 2316 |
WARIYA NAREE
IMO 9353668
|
53,833 | 2011 |
5.2
|
D |
| 2317 |
NORSE IJMUIDEN
IMO 9905253
|
42,469 | 2021 |
5.2
|
D |
| 2318 |
TAMREY S
IMO 9171541
|
31,025 | 1999 |
5.2
|
D |
| 2319 |
STELLAR LADY
IMO 9574004
|
51,201 | 2011 |
5.2
|
D |
| 2320 |
FREE STATE
IMO 9386392
|
58,679 | 2008 |
5.2
|
D |
| 2321 |
CARINA
IMO 9151333
|
77,283 | 1998 |
5.2
|
D |
| 2322 |
LILA CUMBERLAND
IMO 9666649
|
56,531 | 2013 |
5.2
|
D |
| 2323 |
GEORGE
IMO 9650810
|
38,276 | 2013 |
5.2
|
D |
| 2324 |
YASA ROSE
IMO 9955612
|
40,238 | 2022 |
5.2
|
D |
| 2325 |
HALKI
IMO 9543419
|
38,879 | 2011 |
5.2
|
D |
| 2326 |
TRUE FRIEND
IMO 9550668
|
51,241 | 2009 |
5.2
|
D |
| 2327 |
COS ORCHID
IMO 9308704
|
55,539 | 2006 |
5.2
|
D |
| 2328 |
AFRICAN TEAL
IMO 9691046
|
40,652 | 2015 |
5.2
|
D |
| 2329 |
TANIA
IMO 9689562
|
37,188 | 2014 |
5.2
|
D |
| 2330 |
MP ULTRAMAX 1
IMO 9703590
|
63,339 | 2016 |
5.2
|
D |
| 2331 |
FEDERAL FREEDOM
IMO 9866756
|
34,492 | 2021 |
5.2
|
D |
| 2332 |
ULTRA SILVA
IMO 9873890
|
40,213 | 2021 |
5.2
|
D |
| 2333 |
AMOY ACTION
IMO 9583029
|
57,631 | 2008 |
5.2
|
D |
| 2334 |
SILVER
IMO 9663324
|
37,399 | 2023 |
5.2
|
D |
| 2335 |
SOZON
IMO 9401922
|
50,779 | 2010 |
5.2
|
D |
| 2336 |
YASA LOTUS
IMO 9955624
|
40,282 | 2023 |
5.2
|
D |
| 2337 |
OCEANMASTER
IMO 9641340
|
56,715 | 2013 |
5.2
|
D |
| 2338 |
FEDERAL CARIBOU
IMO 9671096
|
34,564 | 2016 |
5.2
|
D |
| 2339 |
FEDERAL INDIANA
IMO 9975387
|
34,763 | 2024 |
5.2
|
D |
| 2340 |
CAPTAINYANNIS L
IMO 9343546
|
55,688 | 2008 |
5.2
|
D |
| 2341 |
AMBER S
IMO 9200354
|
47,282 | 2000 |
5.2
|
D |
| 2342 |
PAVLARA
IMO 9741736
|
40,000 | 2016 |
5.2
|
D |
| 2343 |
NORSE HOUSTON
IMO 9909675
|
40,020 | 2021 |
5.2
|
D |
| 2344 |
MAGIC STRIKER
IMO 9493664
|
56,802 | 2010 |
5.2
|
D |
| 2345 |
JASMUND
IMO 9696840
|
38,868 | 2015 |
5.2
|
D |
| 2346 |
LIMNOS
IMO 9566552
|
57,190 | 2010 |
5.2
|
D |
| 2347 |
CHILEAN BULKER
IMO 9855434
|
39,522 | 2019 |
5.2
|
D |
| 2348 |
FAST
IMO 9513842
|
55,398 | 2012 |
5.2
|
D |
| 2349 |
NAVI SKY
IMO 9722455
|
37,537 | 2015 |
5.2
|
D |
| 2350 |
WASP
IMO 9520613
|
58,105 | 2012 |
5.2
|
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.