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 |
|---|---|---|---|---|---|
| 1001 |
JY LONDON
IMO 9867176
|
81,200 | 2020 |
3.8
|
B |
| 1008 |
FEDERAL OSAKA
IMO 9853436
|
60,467 | 2020 |
3.8
|
B |
| 1012 |
INDIAN HARMONY
IMO 9626651
|
75,385 | 2013 |
3.8
|
B |
| 1003 |
ULTRA VIRTUE
IMO 9933028
|
63,662 | 2022 |
3.8
|
B |
| 1011 |
ARETHUSA
IMO 9855563
|
81,541 | 2020 |
3.8
|
B |
| 1010 |
ARUNA CENGIZ
IMO 9552331
|
58,677 | 2012 |
3.8
|
B |
| 1002 |
ANTHEA V
IMO 9760043
|
66,609 | 2016 |
3.8
|
B |
| 1007 |
FEI JING
IMO 9592032
|
76,098 | 2011 |
3.8
|
B |
| 1006 |
DAPHNE
IMO 9762596
|
81,835 | 2016 |
3.8
|
B |
| 1005 |
ETRON
IMO 9718038
|
81,080 | 2016 |
3.8
|
B |
| 1004 |
STAMFORD EAGLE
IMO 9735127
|
61,530 | 2016 |
3.8
|
B |
| 1009 |
GEOPRIDE
IMO 9643556
|
81,902 | 2013 |
3.8
|
B |
| 1015 |
PERSEFS
IMO 9663350
|
76,431 | 2013 |
3.8
|
B |
| 1017 |
WEN ZHU HAI
IMO 9488475
|
76,381 | 2008 |
3.8
|
B |
| 1014 |
FEDERAL TWEED
IMO 9658898
|
55,317 | 2013 |
3.8
|
B |
| 1013 |
IVS WINDSOR
IMO 9774458
|
60,279 | 2016 |
3.8
|
B |
| 1016 |
ZHENG JUN
IMO 9593804
|
81,810 | 2013 |
3.8
|
B |
| 1023 |
THE LIVING
IMO 9318369
|
74,405 | 2007 |
3.8
|
B |
| 1022 |
GCL GREECE
IMO 9906477
|
82,299 | 2021 |
3.8
|
B |
| 1021 |
EVANGELISTRIA
IMO 9442718
|
82,514 | 2007 |
3.8
|
B |
| 1020 |
PANASIATIC
IMO 9310276
|
82,962 | 2005 |
3.8
|
B |
| 1019 |
ARROW LADY
IMO 9304215
|
76,752 | 2005 |
3.8
|
B |
| 1018 |
SHANDONG FU YUAN
IMO 9734769
|
81,781 | 2018 |
3.8
|
B |
| 1026 |
ULTRA CRIMSON
IMO 9757826
|
61,084 | 2016 |
3.8
|
B |
| 1025 |
GREEN K-MAX 5
IMO 9862619
|
80,873 | 2020 |
3.8
|
B |
| 1024 |
TAI HONOR
IMO 9298519
|
52,292 | 2005 |
3.8
|
B |
| 1028 |
CYCLADES
IMO 9799616
|
60,384 | 2017 |
3.8
|
B |
| 1027 |
PHILHOKUSAI
IMO 9549451
|
61,197 | 2022 |
3.8
|
B |
| 1030 |
PACIFIC ACTIVITY
IMO 9731901
|
63,601 | 2017 |
3.9
|
B |
| 1029 |
DESPINA V
IMO 9727986
|
81,200 | 2018 |
3.9
|
B |
| 1033 |
EVITA
IMO 9604964
|
61,464 | 2012 |
3.9
|
B |
| 1040 |
SARITA NAREE
IMO 9726413
|
62,964 | 2015 |
3.9
|
B |
| 1032 |
DARYA KOSHI
IMO 9973482
|
39,760 | 2024 |
3.9
|
B |
| 1042 |
INDIGO JUGEM
IMO 9748497
|
61,254 | 2015 |
3.9
|
B |
| 1041 |
SANTA ADRIANA
IMO 9652545
|
77,040 | 2013 |
3.9
|
B |
| 1031 |
MEGHNA SUN
IMO 9717072
|
58,074 | 2014 |
3.9
|
B |
| 1039 |
GLBS MIGHT
IMO 9972804
|
64,166 | 2024 |
3.9
|
B |
| 1038 |
CHILOE ISLAND
IMO 9610755
|
58,044 | 2010 |
3.9
|
B |
| 1037 |
SAKIZAYA ACE
IMO 9656400
|
74,936 | 2013 |
3.9
|
B |
| 1036 |
PELICAN ISLAND
IMO 9668922
|
57,905 | 2014 |
3.9
|
B |
| 1035 |
PALONA
IMO 9667112
|
81,676 | 2014 |
3.9
|
B |
| 1034 |
APOLLON
IMO 9646663
|
75,614 | 2017 |
3.9
|
B |
| 1050 |
GREY WHALE
IMO 9498705
|
93,143 | 2010 |
3.9
|
B |
| 1049 |
MARIANNE STOEGER
IMO 9604859
|
81,402 | 2011 |
3.9
|
B |
| 1048 |
W-STAR
IMO 9476678
|
92,842 | 2011 |
3.9
|
B |
| 1047 |
RED ORCHID
IMO 9757890
|
61,645 | 2015 |
3.9
|
B |
| 1046 |
ST. SOFIA
IMO 9799630
|
60,424 | 2018 |
3.9
|
B |
| 1045 |
PEACEFUL SEAS
IMO 9707584
|
63,331 | 2014 |
3.9
|
B |
| 1044 |
EASTERN ZINNIA
IMO 9624093
|
81,792 | 2013 |
3.9
|
B |
| 1043 |
LOCARNO
IMO 9461453
|
82,188 | 2011 |
3.9
|
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.