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 |
|---|---|---|---|---|---|
| 2251 |
SEACON 7
IMO 9487665
|
56,880 | 2012 |
5.1
|
D |
| 2252 |
FRIDA BULKER
IMO 9968970
|
40,161 | 2023 |
5.1
|
D |
| 2253 |
WU YANG FORTUNE
IMO 9294214
|
52,050 | 2004 |
5.1
|
D |
| 2254 |
LADY
IMO 9737369
|
63,194 | 2015 |
5.1
|
D |
| 2255 |
ECO AVALON
IMO 9701267
|
34,370 | 2013 |
5.1
|
D |
| 2256 |
WW NADIA
IMO 9644172
|
63,200 | 2012 |
5.1
|
D |
| 2257 |
FEDERAL HAMILTON
IMO 9975363
|
34,763 | 2023 |
5.1
|
D |
| 2258 |
JNS SEA
IMO 1038391
|
40,526 | 2024 |
5.1
|
D |
| 2259 |
SPAR CANIS
IMO 9299290
|
53,565 | 2006 |
5.1
|
D |
| 2260 |
FEDERAL NAKAGAWA
IMO 9278791
|
36,489 | 2005 |
5.1
|
D |
| 2261 |
OCEAN BAY
IMO 9460863
|
58,786 | 2008 |
5.1
|
D |
| 2262 |
TURBO S
IMO 9951886
|
37,738 | 2023 |
5.1
|
D |
| 2263 |
SEA HUNTER
IMO 9304382
|
55,418 | 2007 |
5.1
|
D |
| 2264 |
KATAGALAN CHAMPION
IMO 9950545
|
82,692 | 2024 |
5.1
|
D |
| 2265 |
ARMONIA
IMO 9638496
|
58,609 | 2013 |
5.1
|
D |
| 2266 |
ES CARE
IMO 9708930
|
35,510 | 2015 |
5.1
|
D |
| 2267 |
BULLITT
IMO 9994826
|
39,909 | 2024 |
5.1
|
D |
| 2268 |
GENCO RHONE
IMO 9490832
|
57,970 | 2011 |
5.1
|
D |
| 2269 |
CANO
IMO 9662332
|
38,980 | 2012 |
5.1
|
D |
| 2270 |
FEDERAL NEW YORK
IMO 9975430
|
34,763 | 2024 |
5.1
|
D |
| 2271 |
MYRA BAY
IMO 9626986
|
56,546 | 2014 |
5.1
|
D |
| 2272 |
VERILA
IMO 9905734
|
32,165 | 2022 |
5.1
|
D |
| 2273 |
PEACE BAND
IMO 9569956
|
56,741 | 2011 |
5.1
|
D |
| 2274 |
NAXOS
IMO 9610224
|
36,360 | 2012 |
5.1
|
D |
| 2275 |
CL YUWA
IMO 9985526
|
39,592 | 2024 |
5.1
|
D |
| 2276 |
SINTRA
IMO 9514389
|
56,118 | 2011 |
5.1
|
D |
| 2277 |
ALIKI FORCE
IMO 9498559
|
58,419 | 2011 |
5.1
|
D |
| 2278 |
PLATON
IMO 9452555
|
58,501 | 2011 |
5.1
|
D |
| 2279 |
KRONOS
IMO 9625815
|
57,399 | 2012 |
5.1
|
D |
| 2280 |
BUNUN VICTORY
IMO 9949699
|
40,074 | 2023 |
5.1
|
D |
| 2281 |
FEDERAL WISCONSIN
IMO 9975404
|
34,763 | 2024 |
5.1
|
D |
| 2282 |
SUNNY ROYAL
IMO 9482122
|
58,772 | 2011 |
5.1
|
D |
| 2283 |
SIKINOS
IMO 9941570
|
37,400 | 2022 |
5.1
|
D |
| 2284 |
SLAVYANKA
IMO 9937309
|
32,209 | 2023 |
5.1
|
D |
| 2285 |
YANNIS PITTAS
IMO 9698317
|
63,243 | 2014 |
5.1
|
D |
| 2286 |
FRIEDERIKE
IMO 9436769
|
57,696 | 2011 |
5.1
|
D |
| 2287 |
UNITY DISCOVERY
IMO 9726047
|
60,629 | 2017 |
5.1
|
D |
| 2288 |
ARUNA NAZIK
IMO 9583146
|
58,097 | 2012 |
5.1
|
D |
| 2289 |
TITANAS
IMO 9551703
|
56,896 | 2012 |
5.1
|
D |
| 2290 |
ARUNA BERK
IMO 9543689
|
57,414 | 2011 |
5.1
|
D |
| 2291 |
DK IONE
IMO 9528158
|
58,714 | 2010 |
5.1
|
D |
| 2292 |
EVA SUNRISE
IMO 9932141
|
40,281 | 2022 |
5.2
|
D |
| 2293 |
BUNUN JUSTICE
IMO 9732448
|
37,748 | 2017 |
5.2
|
D |
| 2294 |
BULK HONDURAS
IMO 9500675
|
57,959 | 2007 |
5.2
|
D |
| 2295 |
SIDER ABIDJAN
IMO 9866641
|
39,073 | 2020 |
5.2
|
D |
| 2296 |
HINOKI
IMO 9460332
|
53,549 | 2008 |
5.2
|
D |
| 2297 |
ERACLE
IMO 9499450
|
58,018 | 2012 |
5.2
|
D |
| 2298 |
CARAVOS LIBERTY
IMO 9653795
|
63,500 | 2013 |
5.2
|
D |
| 2299 |
BC INTEGRITY
IMO 1021300
|
40,319 | 2025 |
5.2
|
D |
| 2300 |
YASA CANARY
IMO 9524700
|
55,446 | 2013 |
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.