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 · 628 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 | 4,904 | 5–10% | €400k–1,200k | — | vendor claim |
| Bulbous bow reprofiling | 4,854 | 2–6% | €300k–900k | — | vendor claim |
| Turbocharger cut-out | 3,788 | 1–3% | €80k–250k | — | vendor claim |
| Rotor sails (per unit) | 3,571 | route-dependent | €1,500k–3,500k | — | vendor claim |
| Suction wing sails (per unit) | 3,571 | route-dependent | €1,000k–2,500k | — | vendor claim |
| Methanol dual-fuel conversion | 2,985 | 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 |
|---|---|---|---|---|---|
| 1106 |
HONG DAI
IMO 9563603
|
76,557 | 2010 |
3.9
|
B |
| 1103 |
SPAR ELECTRA
IMO 9720847
|
63,153 | 2018 |
3.9
|
B |
| 1113 |
GUARDIAN
IMO 9714692
|
61,202 | 2013 |
3.9
|
B |
| 1112 |
NORD ALLEGRO
IMO 9914498
|
61,263 | 2020 |
3.9
|
B |
| 1102 |
ULTRA INFINITY
IMO 9767481
|
61,188 | 2014 |
3.9
|
B |
| 1111 |
DANAE
IMO 9855290
|
80,989 | 2021 |
3.9
|
B |
| 1110 |
DRAFTVADER
IMO 9736664
|
66,585 | 2015 |
3.9
|
B |
| 1109 |
LORIENT
IMO 9336892
|
82,331 | 2009 |
3.9
|
B |
| 1108 |
FARAH LOUISE
IMO 9785603
|
81,886 | 2017 |
3.9
|
B |
| 1107 |
PHILIPPOS
IMO 9839820
|
61,536 | 2019 |
3.9
|
B |
| 1101 |
SOPHIANA
IMO 9738454
|
61,620 | 2016 |
3.9
|
B |
| 1100 |
KMAX EMPEROR
IMO 9477426
|
91,807 | 2011 |
3.9
|
B |
| 1105 |
CPT GEORGIOS S
IMO 9262936
|
74,127 | 2002 |
3.9
|
B |
| 1114 |
NORD MAMORE
IMO 9853632
|
64,050 | 2020 |
3.9
|
B |
| 1115 |
CEPHEUS OCEAN
IMO 9686273
|
83,000 | 2015 |
3.9
|
B |
| 1118 |
DRAGON
IMO 9588005
|
81,389 | 2012 |
3.9
|
B |
| 1117 |
SIIRT
IMO 9644196
|
63,200 | 2013 |
3.9
|
B |
| 1116 |
GREAT QIN
IMO 9766918
|
64,928 | 2017 |
3.9
|
B |
| 1122 |
GENCO LADDEY
IMO 9923334
|
61,085 | 2022 |
3.9
|
B |
| 1121 |
WOOYANG BELOS
IMO 9767558
|
63,590 | 2016 |
3.9
|
B |
| 1124 |
FEDERAL SW
IMO 9443815
|
76,483 | 2011 |
3.9
|
B |
| 1120 |
COPENHAGEN COMMERCE
IMO 9950296
|
64,190 | 2022 |
3.9
|
B |
| 1123 |
DREAM
IMO 9628116
|
81,547 | 2012 |
3.9
|
B |
| 1119 |
CL DAYANG HE
IMO 9880283
|
80,860 | 2020 |
3.9
|
B |
| 1125 |
AMIS WISDOM III
IMO 9573866
|
61,527 | 2011 |
3.9
|
B |
| 1128 |
BASTIONS
IMO 9431173
|
119,376 | 2011 |
3.9
|
B |
| 1130 |
PROPEL FORTUNE
IMO 9500699
|
58,168 | 2012 |
3.9
|
B |
| 1127 |
NEW LONDON EAGLE
IMO 9754991
|
63,140 | 2015 |
3.9
|
B |
| 1137 |
NAVIOS AVIOR
IMO 9590084
|
81,355 | 2012 |
3.9
|
B |
| 1136 |
CLIPPER BELLE
IMO 9675781
|
61,411 | 2014 |
3.9
|
B |
| 1126 |
FENG ZE HAI
IMO 9727663
|
63,413 | 2018 |
3.9
|
B |
| 1135 |
GOLDEN FURIOUS
IMO 9860128
|
80,595 | 2021 |
3.9
|
B |
| 1134 |
RAGNAR
IMO 9633082
|
95,750 | 2013 |
3.9
|
B |
| 1133 |
MARIETTA C
IMO 9281437
|
73,641 | 2002 |
3.9
|
B |
| 1132 |
JENS OLDENDORFF
IMO 9852028
|
61,139 | 2019 |
3.9
|
B |
| 1131 |
EXPRESS
IMO 9461350
|
82,245 | 2010 |
3.9
|
B |
| 1129 |
C.S. COSMOS
IMO 1023736
|
39,841 | 2024 |
3.9
|
B |
| 1144 |
GREAT MIND
IMO 9629627
|
75,474 | 2011 |
3.9
|
B |
| 1145 |
DARYA RADHE
IMO 9982055
|
63,784 | 2022 |
3.9
|
B |
| 1143 |
KYRA ZAFIRA
IMO 9590175
|
80,263 | 2012 |
3.9
|
B |
| 1147 |
XING SHAN
IMO 9567180
|
79,496 | 2012 |
3.9
|
B |
| 1146 |
PORT VERA CRUZ
IMO 9759680
|
63,558 | 2014 |
3.9
|
B |
| 1142 |
GREAT SHANG
IMO 9766906
|
64,942 | 2016 |
3.9
|
B |
| 1141 |
ZOI XL
IMO 9326275
|
82,489 | 2006 |
3.9
|
B |
| 1140 |
ULTRA COUGAR
IMO 9702778
|
81,843 | 2015 |
3.9
|
B |
| 1139 |
PARABOLICA
IMO 9979503
|
40,387 | 2024 |
3.9
|
B |
| 1138 |
AGIOS NIKOLAS
IMO 9702728
|
57,902 | 2014 |
3.9
|
B |
| 1150 |
SPRING JASMINE
IMO 9942079
|
63,441 | 2023 |
4.0
|
B |
| 1149 |
BESIKTAS-M
IMO 9291365
|
53,020 | 2003 |
4.0
|
B |
| 1148 |
JOHN M CARRAS
IMO 9592707
|
82,057 | 2010 |
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 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.