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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)
#1,921 of 2,380 general cargos
CO₂ intensity
18.5 g CO₂/dwt·nm
vs segment average (13.91)
+33% 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

509 at D/E
A 1,034B 685C 507D 258E 251

2,735 rated vessels · 271 of the D/E set dock within 12 months

Docking pipeline — D/E vessels per quarter

47
Q4
56
'27 Q1
56
'27 Q2
36
'27 Q3
37
'27 Q4
56
'28 Q1
44
'28 Q2
32
'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 1,462 5–10% €400k–1,200k — vendor claim
Rotor sails (per unit) 756 route-dependent €1,500k–3,500k — vendor claim
Suction wing sails (per unit) 756 route-dependent €1,000k–2,500k — vendor claim
Turbocharger cut-out 652 1–3% €80k–250k — vendor claim
Bulbous bow reprofiling 566 2–6% €300k–900k — vendor claim
Shaft generator / PTO 97 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

246
D/E vessels with at least one eligible measure
€96–287M
capex range, top measure per vessel (246 of 246 with computable scaling)
0.06–0.12 Mt
annual CO₂ reduction available (vendor-claimed ranges × reported emissions)

Retrofit prospects — worst band first

VesselBand Age Drop year
KOKODA CHIEF · <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
3.18
greenest (g CO₂/dwt·nm)
14.44
segment median
# Vessel Size (DWT) Built Carbon intensity — AER (g CO₂/dwt·nm) Grade
1901 KAMELIA
IMO 9188958
 5,049 1999
18.4
D
1902 PRIMA KING
IMO 9195822
 4,748 2000
18.4
D
1903 VERMLAND
IMO 9757084
 4,879 2016
18.4
D
1904 PRIMA VIKING
IMO 9195810
 4,748 1999
18.4
D
1905 LUCA
IMO 9570632
 7,909 2011
18.4
E
1906 SHANNON RIVER
IMO 9368572
 6,354 2006
18.4
E
1907 FEED TRONDHEIM
IMO 9226798
 5,121 2002
18.4
E
1908 SPANACO FIDELITY
IMO 9472024
 4,193 2009
18.4
E
1909 RIX MARINER
IMO 9197387
 3,676 2001
18.4
E
1910 INDUSTRIAL COURAGE
IMO 9810329
 8,442 2018
18.4
E
1911 LINDE
IMO 9141352
 4,618 1998
18.4
E
1912 TRIO FIRAT
IMO 8914283
 4,245 1992
18.4
E
1913 MORAIME
IMO 9423853
 7,126 2008
18.4
E
1914 ASG KHERSON
IMO 9255579
 7,796 2002
18.4
E
1915 REBECCA
IMO 9195896
 5,004 2001
18.4
E
1916 CAROLIN G.
IMO 9462500
 3,797 2008
18.4
E
1917 WILSON GHENT
IMO 9150236
 3,875 1996
18.5
E
1918 BEE
IMO 9506588
 5,424 2011
18.5
E
1919 INDUSTRIAL COLOR
IMO 9810355
 8,428 2019
18.5
E
1920 NYLAND
IMO 9436240
 6,805 2009
18.5
E
1921 LAAR
IMO 8508400
 2,304 1985
18.5
E
1922 MYRTE
IMO 9364136
 7,124 2008
18.5
E
1923 EEMS EXE
IMO 9195535
 3,725 2003
18.5
E
1924 AYR
IMO 9313711
 3,604 2009
18.5
E
1925 CEMAL REIS
IMO 9558995
 7,096 2010
18.5
E
1926 KASSEL
IMO 9191266
 5,241 1998
18.5
E
1927 SKY RANGER
IMO 9138769
 3,419 1997
18.5
E
1928 WIDOR
IMO 9528483
 3,417 2009
18.5
E
1929 VERENA
IMO 9387322
 3,794 2009
18.5
E
1930 KARESSA
IMO 9341770
 4,878 2006
18.5
E
1931 ANNA
IMO 9040962
 2,481 1994
18.5
E
1932 MARY
IMO 9187978
 2,418 1998
18.5
E
1933 BBC KIMBERLEY
IMO 9407586
 10,340 2009
18.5
E
1934 PGE LILY
IMO 9013024
 1,820 1991
18.5
E
1935 PIJLGRACHT
IMO 9448358
 19,379 2011
18.6
E
1936 SIDER MONICA
IMO 9432517
 8,520 2009
18.6
E
1937 TC GRACE
IMO 9130236
 4,629 1997
18.6
E
1938 LETTLAND
IMO 9237022
 5,464 2001
18.6
E
1939 BALTIC MADONNA
IMO 9100138
 3,895 1994
18.6
E
1940 HAAFJELL
IMO 9148207
 3,714 1999
18.6
E
1941 WILSON HOBRO
IMO 9229128
 4,338 2001
18.6
E
1942 MARTEN
IMO 9617337
 3,801 2012
18.6
E
1943 WILSON MAIN
IMO 8913485
 2,561 1990
18.6
E
1944 EDZARD CIRKSENA
IMO 9375824
 3,630 2008
18.6
E
1945 VERTOM KARIANNE
IMO 9313759
 3,597 2010
18.6
E
1946 LEVI
IMO 9570620
 7,984 2010
18.6
E
1947 OGUZ SOFUOGLU
IMO 9424259
 4,250 2005
18.6
E
1948 WILSON AVILES
IMO 9313709
 3,596 2008
18.7
E
1949 LOTTALAND
IMO 9155975
 3,980 1997
18.7
E
1950 M.N.EREGLI
IMO 9057317
 3,030 1996
18.7
E
Page 39 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.