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 · 638 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 | 3,916 | 1–3% | €80k–250k | — | vendor claim |
| Rotor sails (per unit) | 3,723 | route-dependent | €1,500k–3,500k | — | vendor claim |
| Suction wing sails (per unit) | 3,723 | 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 |
|---|---|---|---|---|---|
| 1194 |
LOWLANDS ISLAND
IMO 9984534
|
63,739 | 2023 |
3.9
|
B |
| 1193 |
HONG YUAN
IMO 9500883
|
76,574 | 2009 |
3.9
|
B |
| 1200 |
NISSAKI
IMO 9611515
|
81,466 | 2013 |
3.9
|
B |
| 1205 |
FLAG METTE
IMO 9727974
|
81,200 | 2016 |
3.9
|
B |
| 1204 |
DANAE
IMO 9855290
|
80,989 | 2021 |
3.9
|
B |
| 1206 |
MALYOVITSA
IMO 9835795
|
45,516 | 2020 |
3.9
|
B |
| 1214 |
GREAT FLUENCY
IMO 9728679
|
63,392 | 2016 |
3.9
|
B |
| 1212 |
FEDERAL IBUKI
IMO 9832705
|
63,386 | 2018 |
3.9
|
B |
| 1213 |
ATHINA CARRAS
IMO 9592719
|
82,057 | 2012 |
3.9
|
B |
| 1211 |
PREVAIL STAR
IMO 9693769
|
81,055 | 2014 |
3.9
|
B |
| 1210 |
MAGIC THUNDER
IMO 9442407
|
83,375 | 2011 |
3.9
|
B |
| 1209 |
BAHAMAS L
IMO 9514315
|
56,141 | 2012 |
3.9
|
B |
| 1208 |
FALKONERA
IMO 9600621
|
81,640 | 2012 |
3.9
|
B |
| 1207 |
STAR HAMBURG
IMO 9698587
|
63,334 | 2014 |
3.9
|
B |
| 1218 |
AQUAVITA EVOLUTION
IMO 9880489
|
80,916 | 2021 |
3.9
|
B |
| 1217 |
GOLDEN FAST
IMO 9860116
|
80,573 | 2021 |
3.9
|
B |
| 1219 |
BROAD RICH
IMO 9285562
|
77,598 | 2004 |
3.9
|
B |
| 1216 |
NANXIN ANGELA
IMO 9307657
|
73,600 | 2006 |
3.9
|
B |
| 1232 |
SILHOUETTE ISLAND
IMO 9589798
|
61,412 | 2011 |
3.9
|
B |
| 1220 |
PATROKLOS
IMO 9729893
|
81,149 | 2017 |
3.9
|
B |
| 1215 |
BULK VALOR
IMO 9520675
|
58,105 | 2013 |
3.9
|
B |
| 1231 |
LEO IRIS
IMO 9709001
|
81,820 | 2015 |
3.9
|
B |
| 1230 |
AQUAVITA MINT
IMO 9875628
|
63,500 | 2020 |
3.9
|
B |
| 1229 |
NJ EARTH
IMO 9229996
|
37,180 | 2003 |
3.9
|
B |
| 1228 |
AENEAS
IMO 9650626
|
75,200 | 2013 |
3.9
|
B |
| 1227 |
BUILDER
IMO 9589255
|
81,541 | 2012 |
3.9
|
B |
| 1226 |
AL DHAFRA
IMO 9852767
|
63,555 | 2019 |
3.9
|
B |
| 1225 |
DRAFTVADER
IMO 9736664
|
66,585 | 2015 |
3.9
|
B |
| 1224 |
CMB FLORIS
IMO 9908499
|
63,628 | 2021 |
3.9
|
B |
| 1223 |
TINOS
IMO 9597795
|
81,391 | 2011 |
3.9
|
B |
| 1222 |
BULK POLAND
IMO 9682863
|
82,150 | 2014 |
3.9
|
B |
| 1221 |
AIANTAS
IMO 9729879
|
81,111 | 2016 |
3.9
|
B |
| 1237 |
GOLDEN TIDE
IMO 9977165
|
85,000 | 2022 |
3.9
|
B |
| 1236 |
MARINO
IMO 9512898
|
82,012 | 2011 |
3.9
|
B |
| 1235 |
PANSOLAR
IMO 9317004
|
76,343 | 2005 |
3.9
|
B |
| 1246 |
CL ZHANGJIAJIE
IMO 9953365
|
64,766 | 2024 |
3.9
|
B |
| 1245 |
FEDERAL INSPIRE
IMO 9925772
|
63,693 | 2022 |
3.9
|
B |
| 1244 |
NORDIC ODYSSEY
IMO 9529451
|
75,603 | 2010 |
3.9
|
B |
| 1243 |
TRAVERSE SINGAPORE
IMO 9342865
|
76,619 | 2005 |
3.9
|
B |
| 1242 |
ULUSOY 11
IMO 9586411
|
79,422 | 2011 |
3.9
|
B |
| 1241 |
COMMON GALAXY
IMO 9704831
|
63,294 | 2015 |
3.9
|
B |
| 1240 |
BENJAMIN OLDENDORFF
IMO 9853034
|
62,623 | 2020 |
3.9
|
B |
| 1239 |
XIN HAI TONG 803
IMO 9591818
|
81,905 | 2012 |
3.9
|
B |
| 1238 |
CRIMSON TURACO
IMO 9701700
|
60,075 | 2016 |
3.9
|
B |
| 1234 |
IONIAN MARINER
IMO 9539248
|
83,366 | 2011 |
3.9
|
B |
| 1247 |
DSI PYXIS
IMO 9800635
|
60,362 | 2018 |
3.9
|
B |
| 1233 |
YAYA GOOSE
IMO 9714745
|
60,425 | 2013 |
3.9
|
B |
| 1250 |
PEACE GEM
IMO 9663348
|
76,433 | 2012 |
4.0
|
B |
| 1249 |
THOR MAXIMUS
IMO 9291391
|
55,695 | 2005 |
4.0
|
B |
| 1248 |
AH UNION
IMO 9272917
|
76,602 | 2003 |
4.0
|
B |
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.