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 |
|---|---|---|---|---|---|
| 3051 |
EXPLORER AMERICA
IMO 9566576
|
61,684 | 2006 |
6.7
|
E |
| 3052 |
KEN BREEZE
IMO 9636383
|
37,076 | 2010 |
6.7
|
E |
| 3053 |
STAR PEGASUS
IMO 9621780
|
56,540 | 2013 |
6.7
|
E |
| 3054 |
TELERIG
IMO 9452854
|
56,867 | 2011 |
6.7
|
E |
| 3055 |
BUNDU
IMO 9273014
|
16,765 | 2003 |
6.7
|
E |
| 3056 |
AGIOS NEKTARIOS I
IMO 9515759
|
56,722 | 2010 |
6.7
|
E |
| 3057 |
OSOGOVO
IMO 9498250
|
30,693 | 2011 |
6.7
|
E |
| 3058 |
SUZANNA D
IMO 9589097
|
37,205 | 2012 |
6.7
|
E |
| 3059 |
PHILIPPAKOS
IMO 9569932
|
57,080 | 2010 |
6.7
|
E |
| 3060 |
RAS GHUMAYS - I
IMO 9494034
|
57,423 | 2011 |
6.7
|
E |
| 3061 |
KACEY
IMO 9420277
|
55,522 | 2009 |
6.7
|
E |
| 3062 |
RODOPI
IMO 9498274
|
30,680 | 2012 |
6.7
|
E |
| 3063 |
DR SARKAS
IMO 9222558
|
28,290 | 2001 |
6.7
|
E |
| 3064 |
SEMIHA-AHMET-M
IMO 9381873
|
42,704 | 2007 |
6.7
|
E |
| 3065 |
BOW ARM
IMO 9558737
|
35,106 | 2009 |
6.7
|
E |
| 3066 |
LILA NOLA
IMO 9621041
|
35,501 | 2012 |
6.7
|
E |
| 3067 |
AM PROGRESS
IMO 9489821
|
31,966 | 2012 |
6.7
|
E |
| 3068 |
KYALAMI
IMO 9574200
|
28,202 | 2011 |
6.8
|
E |
| 3069 |
IVORY GULL
IMO 9475715
|
32,929 | 2009 |
6.8
|
E |
| 3070 |
STRATEGIC EQUITY
IMO 9689902
|
39,880 | 2014 |
6.8
|
E |
| 3071 |
REVENGER
IMO 9467548
|
35,070 | 2009 |
6.8
|
E |
| 3072 |
PANDA
IMO 9748277
|
34,960 | 2018 |
6.8
|
E |
| 3073 |
AFRICAN LILY
IMO 9666443
|
28,340 | 2015 |
6.8
|
E |
| 3074 |
ETHRA 1
IMO 9414759
|
32,641 | 2010 |
6.8
|
E |
| 3075 |
POAVOSA WISDOM VIII
IMO 9641924
|
28,208 | 2013 |
6.8
|
E |
| 3076 |
CARLA C
IMO 9718442
|
37,500 | 2015 |
6.8
|
E |
| 3077 |
MANASSA QUEEN
IMO 9152478
|
23,543 | 1997 |
6.8
|
E |
| 3078 |
NIMERTIS
IMO 9650999
|
28,396 | 2013 |
6.8
|
E |
| 3079 |
LMZ PLUTO
IMO 9585326
|
56,705 | 2011 |
6.8
|
E |
| 3080 |
SPRING PROSPER
IMO 9559705
|
32,626 | 2010 |
6.8
|
E |
| 3081 |
CAPTAIN RAVI
IMO 9404429
|
38,816 | 2009 |
6.8
|
E |
| 3082 |
ARKLOW SPIRIT
IMO 9649536
|
34,905 | 2013 |
6.8
|
E |
| 3083 |
STRATEGIC TENACITY
IMO 9626302
|
36,851 | 2012 |
6.8
|
E |
| 3084 |
VANTAGE EUPHORIA
IMO 9620126
|
32,071 | 2013 |
6.8
|
E |
| 3085 |
POMORZE
IMO 9346823
|
38,981 | 2008 |
6.8
|
E |
| 3086 |
STADION II
IMO 9414462
|
30,200 | 2010 |
6.8
|
E |
| 3087 |
ROZTOCZE
IMO 9346835
|
38,056 | 2008 |
6.8
|
E |
| 3088 |
THE RAINBOW
IMO 9452658
|
57,001 | 2011 |
6.8
|
E |
| 3089 |
TASAN
IMO 9404431
|
38,817 | 2010 |
6.8
|
E |
| 3090 |
SAGITTARIUS
IMO 9550254
|
28,508 | 2010 |
6.8
|
E |
| 3091 |
CARME
IMO 9697961
|
35,906 | 2014 |
6.8
|
E |
| 3092 |
BAM ARION
IMO 9414450
|
30,000 | 2012 |
6.8
|
E |
| 3093 |
BLUE UNION ALPHA
IMO 9604768
|
28,386 | 2011 |
6.8
|
E |
| 3094 |
EAGLE TRADER
IMO 9284362
|
27,074 | 2004 |
6.8
|
E |
| 3095 |
TARSUS-M
IMO 9188908
|
41,675 | 2006 |
6.8
|
E |
| 3096 |
ECO SPITFIRE
IMO 9539468
|
33,664 | 2012 |
6.8
|
E |
| 3097 |
SOFIA R
IMO 9530967
|
36,093 | 2012 |
6.8
|
E |
| 3098 |
TRUE PRESTIGE
IMO 9494814
|
32,077 | 2010 |
6.8
|
E |
| 3099 |
BRIGHT STAR
IMO 9481960
|
36,471 | 2011 |
6.8
|
E |
| 3100 |
BENJAMAS NAREE
IMO 9464027
|
33,780 | 2012 |
6.8
|
E |
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.