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 · 558 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 | 4,938 | 5–10% | €400k–1,200k | — | vendor claim |
| Bulbous bow reprofiling | 4,887 | 2–6% | €300k–900k | — | vendor claim |
| Methanol dual-fuel conversion | 3,009 | 5–15% | €8,000k–20,000k | — | vendor claim |
| Turbocharger cut-out | 2,510 | 1–3% | €80k–250k | — | vendor claim |
| LNG dual-fuel conversion | 2,442 | 15–25% | €15,000k–35,000k | — | vendor claim |
| Rotor sails (per unit) | 2,405 | route-dependent | €1,500k–3,500k | — | 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 |
|---|---|---|---|---|---|
| 1003 |
SAINT MYRON
IMO 9675597
|
77,116 | 2014 |
3.7
|
B |
| 1002 |
SEA NOVA
IMO 9734719
|
81,773 | 2017 |
3.7
|
B |
| 1001 |
YONG HAI 9
IMO 9500948
|
75,485 | 2010 |
3.7
|
B |
| 999 |
BRIGHT VENTURE
IMO 9868883
|
81,486 | 2020 |
3.7
|
B |
| 998 |
ORPHEUS
IMO 9646675
|
75,631 | 2017 |
3.7
|
B |
| 1006 |
VULCANIA
IMO 9718686
|
82,036 | 2015 |
3.7
|
B |
| 1020 |
DANHIL
IMO 9632959
|
81,354 | 2012 |
3.8
|
B |
| 1021 |
STAR ROBERTA
IMO 9700653
|
63,426 | 2015 |
3.8
|
B |
| 1016 |
FEDERAL INDUS
IMO 9860582
|
63,458 | 2019 |
3.8
|
B |
| 1018 |
KIM OLDENDORFF
IMO 9848998
|
81,284 | 2019 |
3.8
|
B |
| 1017 |
XIN HAI TONG 812
IMO 9639555
|
81,563 | 2012 |
3.8
|
B |
| 1012 |
MERCURY RISING
IMO 9687708
|
81,027 | 2015 |
3.8
|
B |
| 1015 |
OSHIMA JAPAN
IMO 9872975
|
62,661 | 2021 |
3.8
|
B |
| 1014 |
BULK ITALY
IMO 9875032
|
81,603 | 2020 |
3.8
|
B |
| 1013 |
CL CHANGSHA
IMO 9953286
|
64,726 | 2023 |
3.8
|
B |
| 1011 |
AEOLIAN FORTUNE
IMO 9461192
|
82,099 | 2011 |
3.8
|
B |
| 1010 |
TAI STEADINESS
IMO 9961233
|
64,589 | 2024 |
3.8
|
B |
| 1019 |
CMB TENIERS
IMO 9916214
|
63,611 | 2021 |
3.8
|
B |
| 1009 |
APOLLO.GR
IMO 9760079
|
60,437 | 2016 |
3.8
|
B |
| 1008 |
NAVIOS CENTAURUS
IMO 9590072
|
81,472 | 2012 |
3.8
|
B |
| 1007 |
RUBY
IMO 9714707
|
61,192 | 2013 |
3.8
|
B |
| 1022 |
XING YANG HAI
IMO 9949297
|
85,016 | 2022 |
3.8
|
B |
| 1023 |
CL ANZI HE
IMO 9890616
|
63,077 | 2020 |
3.8
|
B |
| 1027 |
QUEEN SARAH
IMO 9618666
|
81,221 | 2023 |
3.8
|
B |
| 1029 |
MYRA
IMO 9418456
|
82,226 | 2010 |
3.8
|
B |
| 1026 |
EMERALD JINTANG
IMO 9991525
|
63,910 | 2024 |
3.8
|
B |
| 1034 |
ZHENG YAO
IMO 9601883
|
81,716 | 2014 |
3.8
|
B |
| 1033 |
SEAHAWK
IMO 9974436
|
63,253 | 2025 |
3.8
|
B |
| 1032 |
NEFELI
IMO 9317468
|
77,171 | 2009 |
3.8
|
B |
| 1025 |
FENG LI HAI
IMO 9747534
|
63,424 | 2017 |
3.8
|
B |
| 1031 |
SENECA
IMO 9591179
|
83,975 | 2013 |
3.8
|
B |
| 1030 |
AQUAVITA ETERNITY
IMO 9880491
|
80,929 | 2021 |
3.8
|
B |
| 1024 |
CL HYAKU
IMO 9942081
|
63,492 | 2023 |
3.8
|
B |
| 1028 |
BRIGHT IMABARI
IMO 9801316
|
63,504 | 2017 |
3.8
|
B |
| 1050 |
EFE MERSIN
IMO 9792022
|
60,000 | 2017 |
3.8
|
B |
| 1049 |
SEALADY
IMO 9748734
|
60,436 | 2016 |
3.8
|
B |
| 1048 |
GOLDEN FURIOUS
IMO 9860128
|
80,595 | 2021 |
3.8
|
B |
| 1047 |
ANADOLU S
IMO 9667758
|
52,199 | 2014 |
3.8
|
B |
| 1046 |
KAREN OLDENDORFF
IMO 1021714
|
82,116 | 2025 |
3.8
|
B |
| 1045 |
NAVIOS AMITIE
IMO 9909053
|
82,002 | 2015 |
3.8
|
B |
| 1044 |
KILIAN OLDENDORFF
IMO 9863089
|
81,246 | 2020 |
3.8
|
B |
| 1043 |
GENCO SCORPION
IMO 9729477
|
64,000 | 2015 |
3.8
|
B |
| 1042 |
EGRET STAR
IMO 9593751
|
81,678 | 2012 |
3.8
|
B |
| 1041 |
SFERA
IMO 9304576
|
76,801 | 2006 |
3.8
|
B |
| 1040 |
MIM VANGELIS JR
IMO 9302786
|
76,619 | 2005 |
3.8
|
B |
| 1039 |
JUST
IMO 9581370
|
57,551 | 2011 |
3.8
|
B |
| 1038 |
SEAEAGLE II
IMO 9870886
|
61,305 | 2019 |
3.8
|
B |
| 1037 |
GUO YUAN 28
IMO 9591466
|
75,864 | 2013 |
3.8
|
B |
| 1036 |
MAIRINI
IMO 9474670
|
79,023 | 2010 |
3.8
|
B |
| 1035 |
FRONTIER HARVEST
IMO 9487976
|
179,293 | 2011 |
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.