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
1,301 at D/E4,717 rated vessels · 632 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 | 3,728 | 1–3% | €80k–250k | — | vendor claim |
| Rotor sails (per unit) | 3,512 | route-dependent | €1,500k–3,500k | — | vendor claim |
| Suction wing sails (per unit) | 3,512 | 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 |
|---|---|---|---|---|---|
| 100 |
MARAN HOPE
IMO 9729178
|
179,445 | 2015 |
2.5
|
A |
| 102 |
KSL SEATTLE
IMO 9683245
|
181,015 | 2012 |
2.5
|
A |
| 103 |
SHANDONG DE TAI
IMO 9872121
|
180,702 | 2021 |
2.5
|
A |
| 104 |
BULK TIRRENO
IMO 9624263
|
181,366 | 2013 |
2.5
|
A |
| 105 |
EREIKOUSSA
IMO 9591739
|
178,896 | 2012 |
2.5
|
A |
| 108 |
MILLICENT
IMO 9522714
|
180,223 | 2011 |
2.5
|
A |
| 107 |
SEAFIGHTER
IMO 9686326
|
181,068 | 2015 |
2.5
|
A |
| 106 |
MINERAL HONSHU
IMO 9614892
|
181,408 | 2012 |
2.5
|
A |
| 109 |
CAPE PEREGRINE
IMO 9500754
|
180,643 | 2012 |
2.5
|
A |
| 110 |
DUCHESS LILY
IMO 9996977
|
82,720 | 2024 |
2.5
|
A |
| 111 |
NAVIOS KOYO
IMO 9598127
|
181,415 | 2011 |
2.5
|
A |
| 112 |
GH KAHLO
IMO 9617521
|
179,816 | 2014 |
2.5
|
A |
| 115 |
FRONTIER JACARANDA
IMO 9552393
|
182,757 | 2011 |
2.5
|
A |
| 114 |
HERO
IMO 9446867
|
178,076 | 2010 |
2.5
|
A |
| 113 |
SSI BRILLIANT
IMO 9567099
|
175,428 | 2012 |
2.5
|
A |
| 117 |
NSU NEWSTAR
IMO 9668348
|
181,380 | 2014 |
2.5
|
A |
| 116 |
CAPE HARMONY
IMO 9514212
|
178,373 | 2012 |
2.5
|
A |
| 118 |
OU MAY
IMO 9751016
|
180,003 | 2014 |
2.5
|
A |
| 119 |
SHANDONG DREAM
IMO 9907952
|
207,997 | 2021 |
2.6
|
A |
| 120 |
TRUE CONRAD
IMO 9778430
|
207,609 | 2017 |
2.6
|
A |
| 121 |
PIGASSOS
IMO 9423073
|
176,364 | 2011 |
2.6
|
A |
| 123 |
WANG MAY
IMO 9837327
|
180,682 | 2019 |
2.6
|
A |
| 122 |
SHANDONG DE RUI
IMO 9872042
|
180,613 | 2020 |
2.6
|
A |
| 127 |
AM PORT CARTIER
IMO 9546801
|
180,715 | 2013 |
2.6
|
A |
| 126 |
BERGE HOVERLA
IMO 9497359
|
175,918 | 2010 |
2.6
|
A |
| 125 |
HANNA OLDENDORFF
IMO 9731614
|
208,941 | 2017 |
2.6
|
A |
| 124 |
STAR MARTHA
IMO 9564097
|
180,274 | 2010 |
2.6
|
A |
| 129 |
STAR VESTA
IMO 9446506
|
180,136 | 2010 |
2.6
|
A |
| 128 |
CAPE IRIS
IMO 9563689
|
181,403 | 2012 |
2.6
|
A |
| 132 |
SAKIZAYA TREASURE
IMO 9861328
|
82,500 | 2020 |
2.6
|
A |
| 131 |
ZAMPA BLUE
IMO 9454163
|
178,459 | 2011 |
2.6
|
A |
| 130 |
WAH SHAN
IMO 9693551
|
179,546 | 2015 |
2.6
|
A |
| 134 |
MILLIE
IMO 9492103
|
180,311 | 2009 |
2.6
|
A |
| 133 |
DUKESHIP
IMO 9402304
|
181,453 | 2010 |
2.6
|
A |
| 138 |
NAVIOS ALTAMIRA
IMO 9589827
|
179,164 | 2006 |
2.6
|
A |
| 137 |
EHIME QUEEN
IMO 9767522
|
181,221 | 2016 |
2.6
|
A |
| 139 |
SEATTLE SLEW
IMO 9573737
|
181,447 | 2010 |
2.6
|
A |
| 136 |
KSL SAPPORO
IMO 9683257
|
180,960 | 2012 |
2.6
|
A |
| 135 |
KSL SYDNEY
IMO 9683269
|
181,009 | 2012 |
2.6
|
A |
| 141 |
EMERALD SHENGSI
IMO 9981300
|
85,594 | 2024 |
2.6
|
A |
| 140 |
BERGE TORRE
IMO 9453731
|
175,935 | 2011 |
2.6
|
A |
| 142 |
MOANA INFINITY
IMO 9261932
|
88,233 | 2002 |
2.6
|
A |
| 145 |
SAKIZAYA UNICORN
IMO 9892676
|
82,527 | 2021 |
2.6
|
A |
| 146 |
FRONTIER HARVEST
IMO 9487976
|
179,293 | 2011 |
2.6
|
A |
| 144 |
GCL KRISHNA
IMO 9939931
|
120,326 | 2021 |
2.6
|
A |
| 143 |
KSL SAKURA
IMO 9719941
|
181,062 | 2013 |
2.6
|
A |
| 150 |
AQUABEAUTY
IMO 9881378
|
82,023 | 2020 |
2.6
|
A |
| 149 |
FRONTIER BONANZA
IMO 9511947
|
179,435 | 2010 |
2.6
|
A |
| 148 |
MARAN HORIZON
IMO 9702699
|
180,940 | 2016 |
2.6
|
A |
| 147 |
ANNABEL L
IMO 9853711
|
180,803 | 2019 |
2.6
|
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 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.