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
1,300 at D/E4,717 rated vessels · 529 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 | 2,934 | 1–3% | €80k–250k | — | vendor claim |
| Rotor sails (per unit) | 2,818 | route-dependent | €1,500k–3,500k | — | vendor claim |
| Suction wing sails (per unit) | 2,818 | route-dependent | €1,000k–2,500k | — | 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 |
|---|---|---|---|---|---|
| 2251 |
ALKYONI
IMO 9624055
|
55,830 | 2012 |
5.2
|
D |
| 2252 |
NORDSUN
IMO 9705158
|
61,559 | 2015 |
5.2
|
D |
| 2253 |
GULLUK
IMO 9228100
|
50,992 | 2002 |
5.2
|
D |
| 2254 |
CS SARAFINA
IMO 9635468
|
37,693 | 2014 |
5.2
|
D |
| 2255 |
RELIABLE
IMO 9762900
|
38,603 | 2017 |
5.2
|
D |
| 2256 |
SC MADISON
IMO 9593361
|
55,831 | 2012 |
5.2
|
D |
| 2257 |
MAPLE HARBOUR
IMO 9593323
|
55,832 | 2011 |
5.2
|
D |
| 2258 |
PAVIDA NAREE
IMO 9649885
|
35,340 | 2018 |
5.2
|
D |
| 2259 |
OCEANIC PRAISE
IMO 9687150
|
37,431 | 2015 |
5.2
|
D |
| 2260 |
WEN LI
IMO 9265524
|
56,025 | 2003 |
5.2
|
D |
| 2261 |
SUPER ARTETA
IMO 9594614
|
56,507 | 2013 |
5.2
|
D |
| 2262 |
JINLING CONFIDENCE
IMO 9798337
|
40,320 | 2017 |
5.2
|
D |
| 2263 |
SZARE SZEREGI
IMO 9708057
|
39,000 | 2017 |
5.2
|
D |
| 2264 |
ERACLE
IMO 9499450
|
58,018 | 2012 |
5.2
|
D |
| 2265 |
SIDER MIRAMARE
IMO 9865233
|
39,172 | 2019 |
5.2
|
D |
| 2266 |
NORD ABIDJAN
IMO 9866641
|
39,073 | 2020 |
5.2
|
D |
| 2267 |
FEDERAL SETO
IMO 9267209
|
36,300 | 2004 |
5.2
|
D |
| 2268 |
WOOYANG CLES
IMO 9638147
|
39,202 | 2014 |
5.2
|
D |
| 2269 |
TURBO S
IMO 9951886
|
37,738 | 2023 |
5.2
|
D |
| 2270 |
UNI BLOSSOM
IMO 9816567
|
37,634 | 2018 |
5.2
|
D |
| 2271 |
IRON DUKE
IMO 9577422
|
58,407 | 2011 |
5.2
|
D |
| 2272 |
TOMINI MISTRAL
IMO 9754094
|
39,099 | 2016 |
5.2
|
D |
| 2273 |
TITANAS
IMO 9551703
|
56,896 | 2012 |
5.2
|
D |
| 2274 |
FEDERAL SPEY
IMO 9610456
|
37,141 | 2012 |
5.2
|
D |
| 2275 |
TOMINI SYMPHONY
IMO 9718143
|
63,560 | 2016 |
5.2
|
D |
| 2276 |
LAOURA
IMO 9762912
|
38,552 | 2017 |
5.2
|
D |
| 2277 |
SOLIDARNOSC
IMO 9708069
|
39,092 | 2018 |
5.2
|
D |
| 2278 |
STAR CLEO
IMO 9594638
|
56,582 | 2013 |
5.2
|
D |
| 2279 |
ASTRA CENTAURUS
IMO 9611802
|
58,518 | 2012 |
5.2
|
D |
| 2280 |
EARTH HARMONY
IMO 9832470
|
36,908 | 2020 |
5.2
|
D |
| 2281 |
BOLD VOYAGER
IMO 9565053
|
56,118 | 2010 |
5.2
|
D |
| 2282 |
BAYRAKTAR UNITY
IMO 9452517
|
58,609 | 2010 |
5.2
|
D |
| 2283 |
OWL
IMO 9441386
|
57,809 | 2011 |
5.2
|
D |
| 2284 |
ROMY
IMO 9890862
|
37,897 | 2020 |
5.2
|
D |
| 2285 |
ERRIKOS
IMO 9624500
|
57,000 | 2014 |
5.2
|
D |
| 2286 |
LUNE B
IMO 9163491
|
45,621 | 1998 |
5.2
|
D |
| 2287 |
SIKINOS
IMO 9941570
|
37,400 | 2022 |
5.2
|
D |
| 2288 |
SPAR LIBRA
IMO 9328534
|
53,565 | 2006 |
5.2
|
D |
| 2289 |
SLAVYANKA
IMO 9937309
|
32,209 | 2023 |
5.2
|
D |
| 2290 |
SFL SARA
IMO 9539834
|
56,869 | 2011 |
5.2
|
D |
| 2291 |
FU XING HAI
IMO 9751298
|
38,800 | 2016 |
5.3
|
D |
| 2292 |
MANDARIN NOBLE
IMO 9533323
|
56,692 | 2012 |
5.3
|
D |
| 2293 |
BUNUN RESPECT
IMO 9890680
|
37,987 | 2021 |
5.3
|
D |
| 2294 |
HUPEH
IMO 9714264
|
39,773 | 2016 |
5.3
|
D |
| 2295 |
DARLEAKAY
IMO 9623647
|
58,000 | 2012 |
5.3
|
D |
| 2296 |
SEACON 7
IMO 9487665
|
56,880 | 2012 |
5.3
|
D |
| 2297 |
TONY SMITH
IMO 9576569
|
57,000 | 2011 |
5.3
|
D |
| 2298 |
XIN HAI TONG 9
IMO 9741578
|
48,939 | 2015 |
5.3
|
D |
| 2299 |
ALDA
IMO 9638135
|
39,202 | 2014 |
5.3
|
D |
| 2300 |
ES JASMINE
IMO 9738387
|
38,860 | 2018 |
5.3
|
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.