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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.

Segment rank (2025)
#3,437 of 3,436 bulk carriers
CO₂ intensity
13.5 g CO₂/dwt·nm
vs segment average (4.7)
+188% higher
E
Bulk Carrier Container Ship Oil Tanker Chemical Tanker Gas Carrier LNG Carrier General Cargo Vehicle Carrier Refrigerated Cargo Ro-Ro Cargo

CII band distribution

1,301 at D/E
A 1,145B 954C 1,317D 767E 534

4,717 rated vessels · 514 of the D/E set dock within 12 months

Docking pipeline — D/E vessels per quarter

124
Q4
136
'27 Q1
77
'27 Q2
58
'27 Q3
107
'27 Q4
103
'28 Q1
90
'28 Q2
82
'28 Q3

Windows estimated from the class-expiry docking model, not bookings.

Top eligible retrofit measures for this segment

MeasureEligible CO₂ reductionCapex band PaybackConfidence
Propeller redesign / replacement 4,881 5–10% €400k–1,200k — vendor claim
Bulbous bow reprofiling 4,831 2–6% €300k–900k — vendor claim
Turbocharger cut-out 3,577 1–3% €80k–250k — vendor claim
Rotor sails (per unit) 3,380 route-dependent €1,500k–3,500k — vendor claim
Suction wing sails (per unit) 3,380 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

1,109
D/E vessels with at least one eligible measure
€4,916–11,732M
capex range, top measure per vessel (1,109 of 1,109 with computable scaling)
0.25–0.46 Mt
annual CO₂ reduction available (vendor-claimed ranges × reported emissions)

Retrofit prospects — worst band first

VesselBand 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
See all 4,717 rated bulk carriers with exposure and dock windows. Sign in →
Sort 🌱 Greenest first 🔧 Least efficient first — retrofit candidates
Size (DWT)
All sizes < 25,000 DWT 25k – 60k DWT 60k – 100k DWT 100k – 200k DWT > 200,000 DWT
Year
2025 2024
3,507
vessels ranked
1.74
greenest (g CO₂/dwt·nm)
4.46
segment median
# Vessel Size (DWT) Built Carbon intensity — AER (g CO₂/dwt·nm) Grade
3401 ZULFIKAR
IMO 9211547
 28,373 2000
8.8
E
3402 ATHOS
IMO 9320336
 30,618 2007
8.8
E
3403 REK ROYAL
IMO 9229867
 20,035 2002
8.9
E
3404 QANUX BENEFIT
IMO 1043841
 13,445 2025
8.9
E
3405 LUBIE
IMO 9441984
 29,694 2011
8.9
E
3406 LADY DIVINA
IMO 9354052
 18,901 2007
8.9
E
3407 BADGER ISLAND
IMO 9578294
 58,086 2013
8.9
E
3408 TRADE
IMO 9425942
 58,096 2011
8.9
E
3409 MILOS
IMO 9138446
 24,045 1997
8.9
E
3410 SCOTLAND BAY
IMO 9276200
 28,446 2004
9.0
E
3411 LEGEND
IMO 9587685
 24,319 2010
9.0
E
3412 NIMET TORLAK
IMO 9282948
 18,820 2003
9.0
E
3413 SALVINIA
IMO 9524815
 18,969 2009
9.0
E
3414 OS KANO 35
IMO 9174505
 35,360 1998
9.1
E
3415 MAMRY
IMO 9496264
 30,206 2012
9.1
E
3416 SEA BRIDLE
IMO 9047001
 26,446 1993
9.1
E
3417 STAR EXPLORER
IMO 9498303
 34,569 2006
9.1
E
3418 ASIAN FRONTIER
IMO 9392145
 16,656 2009
9.1
E
3419 WICKO
IMO 9393474
 29,903 2010
9.1
E
3420 NIKE
IMO 9545508
 35,957 2010
9.1
E
3421 SIDER AMBOS
IMO 9805295
 19,998 2017
9.1
E
3422 CADIZ
IMO 9643738
 16,461 2013
9.1
E
3423 AFRICAN JACARANDA
IMO 9354076
 18,909 2007
9.2
E
3424 C-WISE
IMO 9522817
 28,509 2009
9.2
E
3425 DRAWSKO
IMO 9393450
 29,979 2010
9.2
E
3426 ATAYAL STAR
IMO 9606962
 16,805 2012
9.2
E
3427 LADY KATERINA
IMO 9571416
 33,794 2011
9.2
E
3428 MBC DAISY
IMO 9609902
 15,332 2011
9.3
E
3429 PARDUS
IMO 9490260
 16,233 2010
9.3
E
3430 HUANGYAN SPIRIT
IMO 9644263
 22,996 2013
9.3
E
3431 MS MARIA
IMO 9403841
 21,118 2007
9.3
E
3432 MOAYAD Y
IMO 9135482
 23,524 1996
9.4
E
3433 GANOSAYA
IMO 9151400
 18,369 1997
9.5
E
3434 LADY NAEIMA
IMO 9223643
 16,213 2000
9.5
E
3435 LADY AYANA
IMO 9196395
 27,797 1999
9.5
E
3436 SANDERA
IMO 9560326
 14,687 2010
9.5
E
Page 69 of 69 — 3,436 vessels
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Engine intelligence

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.

Emission-friendly engine ranking

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.