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 |
|---|---|---|---|---|---|
| 202 |
OMAHA
IMO 9363041
|
177,805 | 2008 |
2.8
|
A |
| 201 |
VILLARS
IMO 9618812
|
179,905 | 2011 |
2.8
|
A |
| 203 |
CAPE DIVERSITY
IMO 9936745
|
182,236 | 2023 |
2.8
|
A |
| 204 |
CSSC IMMINGHAM
IMO 9853929
|
120,613 | 2021 |
2.8
|
A |
| 208 |
ROBUSTO
IMO 9386512
|
175,000 | 2003 |
2.8
|
A |
| 205 |
JAG ANAND
IMO 9463308
|
179,018 | 2011 |
2.8
|
A |
| 207 |
CAPE AMANDA
IMO 9552410
|
182,741 | 2011 |
2.8
|
A |
| 206 |
BASIC EXPLORER
IMO 9944338
|
82,609 | 2023 |
2.8
|
A |
| 209 |
STAR VIRGINIA
IMO 9698874
|
81,061 | 2015 |
2.8
|
A |
| 212 |
NEW YORK
IMO 9405332
|
177,773 | 2010 |
2.8
|
A |
| 211 |
DENSA SHARK
IMO 9607681
|
179,227 | 2012 |
2.8
|
A |
| 210 |
NAVIOS GEM
IMO 9682942
|
181,193 | 2014 |
2.8
|
A |
| 213 |
XIN MAY
IMO 9837315
|
180,682 | 2017 |
2.8
|
A |
| 215 |
YAESU
IMO 9945100
|
82,629 | 2023 |
2.8
|
A |
| 214 |
IANTHE
IMO 9438779
|
180,018 | 2009 |
2.8
|
A |
| 220 |
EFROSSINI
IMO 1050727
|
82,111 | 2023 |
2.8
|
A |
| 219 |
ICONSHIP
IMO 9641895
|
181,392 | 2013 |
2.8
|
A |
| 218 |
NAVIOS PHOENIX
IMO 9552276
|
180,242 | 2009 |
2.8
|
A |
| 217 |
NAOMI
IMO 9750971
|
181,031 | 2016 |
2.8
|
A |
| 216 |
NORD ASTRALIS
IMO 9738222
|
85,015 | 2017 |
2.8
|
A |
| 221 |
BH PROGRESS
IMO 1025796
|
82,224 | 2025 |
2.8
|
A |
| 223 |
BRILLIANT KNIGHT
IMO 9878149
|
82,009 | 2020 |
2.8
|
A |
| 222 |
GCL PRAIA MOLE
IMO 9974008
|
82,729 | 2024 |
2.8
|
A |
| 224 |
MICHALIS H
IMO 9637791
|
180,355 | 2012 |
2.8
|
A |
| 225 |
NAVIOS ALTAMIRA
IMO 9589827
|
179,164 | 2006 |
2.8
|
A |
| 227 |
BUNGO QUEEN
IMO 9977816
|
82,729 | 2025 |
2.8
|
A |
| 226 |
SEATTLE SLEW
IMO 9573737
|
181,447 | 2010 |
2.8
|
A |
| 229 |
LOWLANDS IYO
IMO 9987249
|
82,019 | 2024 |
2.8
|
A |
| 228 |
ENNA
IMO 9453743
|
175,975 | 2006 |
2.8
|
A |
| 230 |
DUCHESS LILY
IMO 9996977
|
82,720 | 2024 |
2.9
|
A |
| 231 |
LOWLANDS KAMI
IMO 9968346
|
82,459 | 2024 |
2.9
|
A |
| 233 |
BERGE SONG SHAN
IMO 9436513
|
180,154 | 2010 |
2.9
|
A |
| 232 |
ROYAL LAUREL
IMO 9873163
|
81,962 | 2019 |
2.9
|
A |
| 234 |
CIARA MARU
IMO 9932098
|
82,626 | 2022 |
2.9
|
A |
| 241 |
CSSC ROTTERDAM
IMO 9853905
|
120,640 | 2021 |
2.9
|
A |
| 240 |
NAVIOS STELLAR
IMO 9498781
|
169,001 | 2006 |
2.9
|
A |
| 239 |
CS CHENGDU
IMO 9928231
|
84,953 | 2022 |
2.9
|
A |
| 238 |
KATY OLDENDORFF
IMO 1021740
|
82,119 | 2025 |
2.9
|
A |
| 237 |
KEEPER
IMO 9313395
|
174,674 | 2005 |
2.9
|
A |
| 236 |
LOWLANDS CONCORD
IMO 9959412
|
82,778 | 2024 |
2.9
|
A |
| 235 |
LOWLANDS INFINITY
IMO 9965784
|
82,239 | 2024 |
2.9
|
A |
| 249 |
GCL GOMTI
IMO 9939943
|
120,317 | 2021 |
2.9
|
A |
| 248 |
ETG MISHIMA
IMO 9907847
|
81,957 | 2019 |
2.9
|
A |
| 245 |
TOKUGAWA
IMO 9937220
|
82,570 | 2023 |
2.9
|
A |
| 247 |
JUBILANT DREAM
IMO 9767508
|
181,265 | 2016 |
2.9
|
A |
| 246 |
MAPLE WELL
IMO 9993834
|
82,253 | 2025 |
2.9
|
A |
| 244 |
SHANDONG DE FENG
IMO 9872119
|
180,657 | 2021 |
2.9
|
A |
| 243 |
STAR VOYAGER
IMO 9968334
|
82,459 | 2024 |
2.9
|
A |
| 242 |
ATLANTIC SAMURAI
IMO 9783980
|
81,725 | 2019 |
2.9
|
A |
| 250 |
NICOLAUS SCHULTE
IMO 9966312
|
82,004 | 2023 |
2.9
|
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 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.