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 · 560 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 | 2,539 | 1–3% | €80k–250k | — | vendor claim |
| LNG dual-fuel conversion | 2,443 | 15–25% | €15,000k–35,000k | — | vendor claim |
| Rotor sails (per unit) | 2,432 | 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 |
|---|---|---|---|---|---|
| 903 |
BELGRACE
IMO 1024455
|
63,718 | 2024 |
3.7
|
B |
| 912 |
ANDREAS K
IMO 9438121
|
91,873 | 2009 |
3.7
|
B |
| 902 |
OMICRON EAGLE
IMO 9375927
|
81,426 | 2009 |
3.7
|
B |
| 914 |
EMERALD QUSHAN
IMO 9991537
|
63,824 | 2024 |
3.7
|
B |
| 913 |
EMERALD BAISHA
IMO 9726530
|
81,651 | 2015 |
3.7
|
B |
| 901 |
ULTRA SERVAL
IMO 9874997
|
81,606 | 2020 |
3.7
|
B |
| 911 |
ODYSSEAS L
IMO 9597381
|
81,259 | 2013 |
3.7
|
B |
| 910 |
GCL PARADIP
IMO 9921855
|
82,324 | 2021 |
3.7
|
B |
| 909 |
PATMOS
IMO 9967653
|
63,631 | 2024 |
3.7
|
B |
| 908 |
SARITA
IMO 9836361
|
63,988 | 2019 |
3.7
|
B |
| 907 |
STAR SKY
IMO 9399105
|
81,466 | 2010 |
3.7
|
B |
| 906 |
BELNIPPON
IMO 9801249
|
63,602 | 2018 |
3.7
|
B |
| 905 |
DORIC TRIDENT
IMO 9728150
|
57,859 | 2016 |
3.7
|
B |
| 904 |
PAN REGINA
IMO 9875666
|
63,243 | 2020 |
3.7
|
B |
| 919 |
BLOCK ISLAND
IMO 9614969
|
61,442 | 2012 |
3.7
|
B |
| 921 |
PHILIPPOS
IMO 9839820
|
61,536 | 2019 |
3.7
|
B |
| 918 |
BULK CROATIA
IMO 9875020
|
81,621 | 2020 |
3.7
|
B |
| 923 |
TOMINI PROSPERITY
IMO 9718181
|
63,503 | 2018 |
3.7
|
B |
| 922 |
SDTR ALICE
IMO 9877834
|
84,972 | 2021 |
3.7
|
B |
| 917 |
BLUE SPIRIT
IMO 9471252
|
80,502 | 2010 |
3.7
|
B |
| 916 |
VITAKOSMOS
IMO 9583225
|
82,177 | 2012 |
3.7
|
B |
| 915 |
ALANA
IMO 9311220
|
82,936 | 2005 |
3.7
|
B |
| 920 |
FORTUNE PROSPERITY
IMO 9303510
|
77,747 | 2005 |
3.7
|
B |
| 924 |
FORTUNE SUN
IMO 9267211
|
74,193 | 2002 |
3.7
|
B |
| 927 |
VAN LEOPARD
IMO 9692674
|
60,263 | 2015 |
3.7
|
B |
| 929 |
MSXT HELEN
IMO 9929314
|
85,295 | 2022 |
3.7
|
B |
| 926 |
OURANIA DREAM
IMO 9310642
|
83,002 | 2006 |
3.7
|
B |
| 930 |
GALATEIA
IMO 9715438
|
81,886 | 2016 |
3.7
|
B |
| 925 |
FEDERAL IMABARI
IMO 9774331
|
63,449 | 2016 |
3.7
|
B |
| 928 |
POLYDEFKIS
IMO 9843417
|
80,996 | 2020 |
3.7
|
B |
| 945 |
JAG AMAR
IMO 9723851
|
82,083 | 2017 |
3.7
|
B |
| 948 |
GEORG OLDENDORFF
IMO 9702596
|
80,866 | 2015 |
3.7
|
B |
| 944 |
SSI SURPRISE
IMO 9603142
|
81,631 | 2013 |
3.7
|
B |
| 947 |
STAR ANTARES
IMO 9712694
|
61,258 | 2015 |
3.7
|
B |
| 946 |
ETRON
IMO 9718038
|
81,080 | 2016 |
3.7
|
B |
| 935 |
AMSTEL TIGER
IMO 9434515
|
60,454 | 2016 |
3.7
|
B |
| 934 |
ESNA
IMO 9139268
|
71,598 | 1998 |
3.7
|
B |
| 943 |
GENCO COLUMBIA
IMO 9758129
|
60,294 | 2016 |
3.7
|
B |
| 942 |
LEM GERANIUM
IMO 9845790
|
64,712 | 2015 |
3.7
|
B |
| 941 |
ATALANTI.GR
IMO 9849784
|
60,394 | 2019 |
3.7
|
B |
| 940 |
KENDRA OLDENDORFF
IMO 9849813
|
81,122 | 2019 |
3.7
|
B |
| 939 |
CL DALIAO HE
IMO 9880300
|
80,860 | 2020 |
3.7
|
B |
| 938 |
MAKEDONIKOS
IMO 9884605
|
61,087 | 2020 |
3.7
|
B |
| 937 |
ERENA
IMO 9433664
|
83,468 | 2011 |
3.7
|
B |
| 936 |
ORIENT CAVALIER
IMO 9436460
|
114,751 | 2010 |
3.7
|
B |
| 933 |
GLBS MAGIC
IMO 9972816
|
64,195 | 2024 |
3.7
|
B |
| 932 |
AEOLIAN ARROW
IMO 9671814
|
82,053 | 2018 |
3.7
|
B |
| 931 |
EASTERN VENTURE
IMO 9978743
|
64,696 | 2023 |
3.7
|
B |
| 950 |
SPAR ARIES
IMO 9701920
|
63,247 | 2015 |
3.7
|
B |
| 949 |
EVANGELISTRIA
IMO 9442718
|
82,514 | 2007 |
3.7
|
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.