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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)
#3,433 of 3,436 bulk carriers
CO₂ intensity
9.5 g CO₂/dwt·nm
vs segment average (4.71)
+101% 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 765E 536

4,717 rated vessels · 560 of the D/E set dock within 12 months

Docking pipeline — D/E vessels per quarter

96
Q3
123
Q4
133
'27 Q1
76
'27 Q2
58
'27 Q3
106
'27 Q4
102
'28 Q1
83
'28 Q2

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 4,938 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 2,577 1–3% €80k–250k — vendor claim
Rotor sails (per unit) 2,467 route-dependent €1,500k–3,500k — vendor claim
Suction wing sails (per unit) 2,467 route-dependent €1,000k–2,500k — vendor claim

Capex bands are indicative vendor/literature priors. Payback appears once price parameters are configured.

Retrofit opportunity in this segment

1,097
D/E vessels with at least one eligible measure
€4,987–11,902M
capex range, top measure per vessel (1,097 of 1,097 with computable scaling)
0.25–0.47 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 LADY DIVINA
IMO 9354052
 18,901 2007
8.9
E
3405 BADGER ISLAND
IMO 9578294
 58,086 2013
8.9
E
3406 TRADE
IMO 9425942
 58,096 2011
8.9
E
3407 WICKO
IMO 9393474
 30,379 2010
8.9
E
3408 QANUX BENEFIT
IMO 1043841
 13,394 2025
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 DRAWSKO
IMO 9393450
 30,487 2010
9.0
E
3414 SALVINIA
IMO 9524815
 18,969 2009
9.0
E
3415 OS KANO 35
IMO 9174505
 35,360 1998
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 MAMRY
IMO 9496264
 30,206 2012
9.1
E
3419 ASIAN FRONTIER
IMO 9392145
 16,656 2009
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 ATAYAL STAR
IMO 9606962
 16,805 2012
9.2
E
3426 LADY KATERINA
IMO 9571416
 33,794 2011
9.2
E
3427 MBC DAISY
IMO 9609902
 15,332 2011
9.3
E
3428 HUANGYAN SPIRIT
IMO 9644263
 22,996 2013
9.3
E
3429 MS MARIA
IMO 9403841
 21,118 2007
9.3
E
3430 PARDUS
IMO 9490260
 16,213 2010
9.3
E
3431 MOAYAD Y
IMO 9135482
 23,524 1996
9.4
E
3432 GANOSAYA
IMO 9151400
 18,369 1997
9.5
E
3433 LADY NAEIMA
IMO 9223643
 16,213 2000
9.5
E
3434 LADY AYANA
IMO 9196395
 27,797 1999
9.5
E
3435 SANDERA
IMO 9560326
 14,687 2010
9.5
E
3436 AILEEN
IMO 9214252
 18,320 2000
9.6
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.