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General Cargo 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)
#962 of 2,380 general cargos
CO₂ intensity
13.1 g CO₂/dwt·nm
vs segment average (13.95)
-6% greener
C
Bulk Carrier Container Ship Oil Tanker Chemical Tanker Gas Carrier LNG Carrier General Cargo Vehicle Carrier Refrigerated Cargo Ro-Ro Cargo

CII band distribution

516 at D/E
A 1,027B 685C 507D 261E 255

2,735 rated vessels · 242 of the D/E set dock within 12 months

Docking pipeline — D/E vessels per quarter

43
Q3
45
Q4
41
'27 Q1
38
'27 Q2
35
'27 Q3
33
'27 Q4
29
'28 Q1
33
'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 1,466 5–10% €400k–1,200k — vendor claim
Rotor sails (per unit) 631 route-dependent €1,500k–3,500k — vendor claim
Suction wing sails (per unit) 631 route-dependent €1,000k–2,500k — vendor claim
Bulbous bow reprofiling 572 2–6% €300k–900k — vendor claim
Turbocharger cut-out 530 1–3% €80k–250k — vendor claim
Shaft generator / PTO 101 3–6% €500–1,500/kW — vendor claim

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

Retrofit opportunity in this segment

245
D/E vessels with at least one eligible measure
€95–286M
capex range, top measure per vessel (245 of 245 with computable scaling)
0.06–0.11 Mt
annual CO₂ reduction available (vendor-claimed ranges × reported emissions)

Retrofit prospects — worst band first

VesselBand Age Drop year
PACIFIC INTEGRITY · <25k E 15y 2026
CLAUDIO CUCCO · <25k E 40y 2026
GINO CUCCO · <25k E 39y 2026
GIUSEPPE CUCCO · <25k E 49y 2026
LADY OF CHICHESTER · <25k E 56y 2026
See all 2,735 rated general cargos 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
2,429
vessels ranked
3.13
greenest (g CO₂/dwt·nm)
14.48
segment median
# Vessel Size (DWT) Built Carbon intensity — AER (g CO₂/dwt·nm) Grade
951 COE LUISA
IMO 9435026
 12,669 2008
13.0
B
954 MARATONA
IMO 9081344
 4,200 1993
13.1
B
953 ESL AUSTRALIA
IMO 9365661
 17,356 2007
13.1
B
952 ARISTO
IMO 9229116
 9,682 2000
13.1
B
955 MIRA AKAY
IMO 9045663
 6,916 2004
13.1
C
956 EKMEN
IMO 9136888
 6,830 1996
13.1
C
957 PASILA
IMO 9113018
 13,367 1995
13.1
C
958 SOUNDMAR
IMO 1031575
 5,993 2025
13.1
C
960 UNISOUL
IMO 9484209
 9,775 2009
13.1
C
959 MISSISSIPPIBORG
IMO 9207508
 9,732 2000
13.1
C
961 JSP HALMØ
IMO 9968231
 5,209 2024
13.1
C
962 FWN SEA
IMO 9721657
 10,544 2016
13.1
C
963 CELINA
IMO 9368326
 17,299 2008
13.1
C
964 MONTSERRAT
IMO 9213739
 9,567 2000
13.1
C
965 HAMMER
IMO 9168441
 7,200 1998
13.2
C
967 LAURUS
IMO 9559169
 5,480 2009
13.2
C
966 EKMEN SKY
IMO 9384174
 8,523 2006
13.2
C
968 NUNALIK
IMO 9466996
 12,662 2009
13.2
C
970 SNOW CRYSTAL
IMO 9818319
 5,790 2017
13.2
C
969 MANISA AMELIA
IMO 9933456
 8,892 2023
13.2
C
971 SCHELDEGRACHT
IMO 9202510
 21,448 2000
13.2
C
973 STINNES MISTRAL
IMO 9452218
 12,946 2010
13.2
C
972 UAL HARRIER
IMO 9594303
 8,690 2012
13.2
C
974 KWINTEBANK
IMO 9234288
 9,857 2002
13.2
C
975 SITHONIA II
IMO 9455571
 8,790 2007
13.2
C
976 UNISKY
IMO 9356414
 9,775 2006
13.2
C
977 ARKLOW MOOR
IMO 9509475
 14,998 2011
13.3
C
978 VAERMLAND
IMO 9196254
 3,211 1999
13.3
C
979 BBC GANGES
IMO 9508304
 16,944 2010
13.3
C
980 BALTIC SEA
IMO 9969479
 3,700 2024
13.3
C
981 SPUIGRACHT
IMO 9202534
 21,448 2001
13.3
C
982 BEATA
IMO 9053828
 6,918 1994
13.3
C
986 STADIONGRACHT
IMO 9202508
 21,323 2000
13.3
C
985 SLUISGRACHT
IMO 9202522
 21,448 2001
13.3
C
984 LADA 2005
IMO 8997144
 5,300 2005
13.3
C
983 GUNERLER
IMO 9598684
 6,599 2011
13.3
C
987 HEEMSKERKGRACHT
IMO 9443669
 12,672 2009
13.3
C
988 VISSERSBANK
IMO 1024663
 6,346 2025
13.3
C
989 BALTIC WAVE
IMO 9969508
 3,641 2025
13.3
C
990 RIX SAPPHIRE
IMO 9195729
 3,850 2000
13.4
C
991 UAL BRAZIL
IMO 9511636
 11,078 2010
13.4
C
993 MEHMET AGA
IMO 8914312
 9,169 1989
13.4
C
992 SIDER BILBAO
IMO 9338151
 14,184 2007
13.4
C
994 KYA
IMO 9268837
 6,951 2004
13.4
C
998 SLOTERGRACHT
IMO 9197947
 21,311 2000
13.4
C
997 STATENGRACHT
IMO 9288045
 21,253 2004
13.4
C
996 ATLANTICBORG
IMO 9466350
 17,294 2012
13.4
C
995 ELISA K.
IMO 9879064
 5,180 2021
13.4
C
1000 MB PINTO
IMO 8822636
 3,666 1989
13.4
C
999 BBC CHALLENGER
IMO 9369095
 11,121 2008
13.4
C
Page 20 of 48 — 2,380 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.