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 · 624 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 | 3,753 | 1–3% | €80k–250k | — | vendor claim |
| Rotor sails (per unit) | 3,532 | route-dependent | €1,500k–3,500k | — | vendor claim |
| Suction wing sails (per unit) | 3,532 | route-dependent | €1,000k–2,500k | — | vendor claim |
| Methanol dual-fuel conversion | 2,974 | 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 |
|---|---|---|---|---|---|
| 898 |
PAVO BRAVE
IMO 9894480
|
64,247 | 2021 |
3.7
|
B |
| 904 |
SPAR INDUS
IMO 9734991
|
63,302 | 2016 |
3.7
|
B |
| 903 |
MEGHNA PROGRESS
IMO 9928853
|
66,258 | 2023 |
3.7
|
B |
| 902 |
MERCURY RISING
IMO 9687708
|
81,027 | 2015 |
3.7
|
B |
| 912 |
SSI DISCOVERY
IMO 9969144
|
63,712 | 2023 |
3.7
|
B |
| 916 |
JORITA
IMO 9852731
|
63,532 | 2019 |
3.7
|
B |
| 906 |
LILA NANGLI
IMO 9596337
|
180,184 | 2010 |
3.7
|
B |
| 915 |
NAVIOS CORAL
IMO 9774264
|
84,904 | 2016 |
3.7
|
B |
| 914 |
XIN HAI TONG 803
IMO 9591818
|
81,905 | 2012 |
3.7
|
B |
| 905 |
SSI DILIGENT
IMO 9919022
|
63,787 | 2022 |
3.7
|
B |
| 911 |
NORD CRUX
IMO 9728203
|
81,791 | 2016 |
3.7
|
B |
| 910 |
W-LUNA
IMO 9756925
|
81,115 | 2016 |
3.7
|
B |
| 909 |
NIKOLAS D
IMO 9474723
|
80,902 | 2018 |
3.7
|
B |
| 908 |
LIGHT VENTURE
IMO 9868895
|
81,492 | 2020 |
3.7
|
B |
| 907 |
APHRODITE L
IMO 9487615
|
81,365 | 2010 |
3.7
|
B |
| 913 |
BLUE SPIRIT
IMO 9471252
|
80,502 | 2010 |
3.7
|
B |
| 919 |
ASL VENUS
IMO 9510345
|
82,153 | 2011 |
3.7
|
B |
| 918 |
IRINA
IMO 9723655
|
81,600 | 2013 |
3.7
|
B |
| 920 |
ARISTA
IMO 9244831
|
76,015 | 2002 |
3.7
|
B |
| 917 |
POLYDEFKIS
IMO 9843417
|
80,996 | 2020 |
3.7
|
B |
| 928 |
TRANS AFRICA
IMO 9768239
|
81,271 | 2017 |
3.7
|
B |
| 927 |
NAVIOS SKY
IMO 9724180
|
82,056 | 2015 |
3.7
|
B |
| 926 |
PAN ENERGEN
IMO 9621405
|
81,170 | 2012 |
3.7
|
B |
| 925 |
CHRISTINE OLDENDORFF
IMO 9537898
|
93,077 | 2010 |
3.7
|
B |
| 924 |
EPICURUS
IMO 9328560
|
75,395 | 2005 |
3.7
|
B |
| 923 |
JOLLY DANUBE
IMO 9471240
|
80,505 | 2010 |
3.7
|
B |
| 922 |
BRIGHT IMABARI
IMO 9801316
|
63,504 | 2017 |
3.7
|
B |
| 921 |
PMS AUERHAHN
IMO 9729348
|
60,948 | 2015 |
3.7
|
B |
| 930 |
VENEZIA
IMO 9799628
|
60,388 | 2017 |
3.8
|
B |
| 929 |
W-PACIFIC
IMO 9596650
|
81,233 | 2013 |
3.8
|
B |
| 934 |
ORION OCEAN
IMO 9738935
|
61,321 | 2015 |
3.8
|
B |
| 940 |
MAJESTIC STAR
IMO 9865568
|
81,878 | 2020 |
3.8
|
B |
| 933 |
MAGIC P
IMO 9288447
|
76,453 | 2004 |
3.8
|
B |
| 939 |
CAPTAIN HADDOCK
IMO 9839791
|
61,094 | 2015 |
3.8
|
B |
| 938 |
NAVIOS HOPE
IMO 9328558
|
75,397 | 2005 |
3.8
|
B |
| 937 |
DONA BIBI
IMO 9600619
|
81,966 | 2012 |
3.8
|
B |
| 932 |
CSSC BRIGHT
IMO 9830068
|
81,574 | 2018 |
3.8
|
B |
| 935 |
MARINE BRIGHT
IMO 9581681
|
114,013 | 2012 |
3.8
|
B |
| 931 |
ETERNAL STARS
IMO 9290842
|
87,052 | 2005 |
3.8
|
B |
| 936 |
CHAILEASE VIRTUE
IMO 9454280
|
80,647 | 2011 |
3.8
|
B |
| 946 |
ULUSOY 11
IMO 9586411
|
79,422 | 2011 |
3.8
|
B |
| 947 |
IVS OKUDOGO
IMO 9870874
|
61,331 | 2019 |
3.8
|
B |
| 945 |
CARAVOS GLORY
IMO 9584322
|
81,672 | 2012 |
3.8
|
B |
| 944 |
EVMAR
IMO 9738026
|
82,039 | 2016 |
3.8
|
B |
| 943 |
MAMA SARA
IMO 9933236
|
82,282 | 2022 |
3.8
|
B |
| 942 |
CLARA B
IMO 9304083
|
77,073 | 2006 |
3.8
|
B |
| 941 |
PACIFIC ACHIEVEMENT
IMO 9712917
|
61,414 | 2016 |
3.8
|
B |
| 950 |
GNG CONCORD 2
IMO 9715311
|
75,700 | 2010 |
3.8
|
B |
| 949 |
HYDRA
IMO 9949479
|
61,205 | 2021 |
3.8
|
B |
| 948 |
GLYFADA I
IMO 9473145
|
75,639 | 2009 |
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 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.