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 |
|---|---|---|---|---|---|
| 1043 |
SEAEAGLE II
IMO 9870886
|
61,305 | 2019 |
3.8
|
B |
| 1057 |
SEABISCUIT
IMO 9619787
|
82,624 | 2014 |
3.8
|
B |
| 1052 |
CORONA
IMO 9391971
|
83,688 | 2009 |
3.8
|
B |
| 1056 |
ARTVIN
IMO 9595034
|
81,827 | 2011 |
3.8
|
B |
| 1058 |
FLAG EVI
IMO 9619799
|
82,629 | 2014 |
3.8
|
B |
| 1055 |
VELSHEDA
IMO 9494008
|
82,172 | 2012 |
3.8
|
B |
| 1065 |
DSI ALTAIR
IMO 9749245
|
60,309 | 2016 |
3.8
|
B |
| 1064 |
LV STAR
IMO 9553218
|
79,252 | 2012 |
3.8
|
B |
| 1054 |
YUAN HANG CAI FU
IMO 9580481
|
76,037 | 2012 |
3.8
|
B |
| 1063 |
NOVA CAELI
IMO 9836414
|
81,612 | 2019 |
3.8
|
B |
| 1062 |
LUVIA
IMO 9316220
|
55,317 | 2004 |
3.8
|
B |
| 1061 |
CUI PING FENG
IMO 9523172
|
75,486 | 2011 |
3.8
|
B |
| 1060 |
PIAVIA
IMO 9570864
|
93,296 | 2011 |
3.8
|
B |
| 1059 |
MINOAN FALCON
IMO 9605841
|
92,700 | 2011 |
3.8
|
B |
| 1053 |
NS NINGBO
IMO 9954979
|
64,129 | 2021 |
3.8
|
B |
| 1066 |
BELFUJI
IMO 9860661
|
63,468 | 2020 |
3.8
|
B |
| 1071 |
TAI STRIDE
IMO 9926001
|
64,539 | 2022 |
3.8
|
B |
| 1070 |
S SAMBA
IMO 9712486
|
84,867 | 2013 |
3.8
|
B |
| 1072 |
DESPINA V
IMO 9727986
|
81,200 | 2018 |
3.8
|
B |
| 1069 |
MYKONOS WAVE
IMO 9453406
|
87,340 | 2012 |
3.8
|
B |
| 1080 |
NORDIC ORION
IMO 9529463
|
75,603 | 2011 |
3.8
|
B |
| 1073 |
ULTRA COURAGE
IMO 9856256
|
63,646 | 2019 |
3.8
|
B |
| 1068 |
ALMA
IMO 9706530
|
81,947 | 2017 |
3.8
|
B |
| 1079 |
DEE4 OAK
IMO 9790854
|
63,490 | 2017 |
3.8
|
B |
| 1078 |
GOLDEN FREEZE
IMO 9849904
|
81,135 | 2021 |
3.8
|
B |
| 1077 |
MARIETTA C
IMO 9281437
|
73,641 | 2002 |
3.8
|
B |
| 1076 |
SANTA ACE
IMO 9951977
|
63,725 | 2022 |
3.8
|
B |
| 1075 |
HUA XING HAI
IMO 9758583
|
81,108 | 2017 |
3.8
|
B |
| 1074 |
PROPEL WEALTH
IMO 9736353
|
80,868 | 2015 |
3.8
|
B |
| 1067 |
MEHMET AKSOY
IMO 9607502
|
81,490 | 2012 |
3.8
|
B |
| 1081 |
YUN MI FENG
IMO 9523196
|
75,421 | 2011 |
3.8
|
B |
| 1084 |
SEAJOY II
IMO 9870874
|
61,331 | 2019 |
3.8
|
B |
| 1088 |
KAVO ALKYON
IMO 9291121
|
75,300 | 2005 |
3.8
|
B |
| 1085 |
EQUINOX DAWN II
IMO 9725457
|
60,456 | 2015 |
3.8
|
B |
| 1083 |
CL CHENZHOU
IMO 9953339
|
64,741 | 2023 |
3.8
|
B |
| 1094 |
WADI ALKARNAK
IMO 9127136
|
70,090 | 1997 |
3.8
|
B |
| 1092 |
ATMOSPHERE
IMO 9527283
|
76,606 | 2009 |
3.8
|
B |
| 1093 |
JAG AARATI
IMO 9478200
|
80,323 | 2011 |
3.8
|
B |
| 1091 |
MARVELOUS STAR
IMO 9864095
|
81,980 | 2020 |
3.8
|
B |
| 1090 |
FE MAGICIAN
IMO 9660633
|
70,776 | 2011 |
3.8
|
B |
| 1082 |
BULK ATACAMA
IMO 9683130
|
61,384 | 2008 |
3.8
|
B |
| 1089 |
GISELA OLDENDORFF
IMO 9702601
|
80,839 | 2015 |
3.8
|
B |
| 1087 |
HARRIER S
IMO 1082809
|
40,563 | 2025 |
3.8
|
B |
| 1086 |
DARYA SATI
IMO 9752424
|
64,000 | 2014 |
3.8
|
B |
| 1097 |
KYPROS SPIRIT
IMO 9717436
|
77,998 | 2016 |
3.8
|
B |
| 1096 |
CHILOE ISLAND
IMO 9610755
|
58,044 | 2010 |
3.8
|
B |
| 1095 |
JOANNA
IMO 9473183
|
76,000 | 2010 |
3.8
|
B |
| 1100 |
EQUINOX SOFRANO
IMO 9860221
|
61,056 | 2015 |
3.8
|
B |
| 1099 |
EPSON TRADER
IMO 9872963
|
62,661 | 2021 |
3.8
|
B |
| 1098 |
KOBAYASHI MARU
IMO 9847011
|
60,397 | 2019 |
3.8
|
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.