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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)
#302 of 2,380 general cargos
CO₂ intensity
6.2 g CO₂/dwt·nm
vs segment average (13.91)
-56% greener
A
Bulk Carrier Container Ship Oil Tanker Chemical Tanker Gas Carrier LNG Carrier General Cargo Vehicle Carrier Refrigerated Cargo Ro-Ro Cargo

CII band distribution

508 at D/E
A 1,034B 685C 508D 257E 251

2,735 rated vessels · 221 of the D/E set dock within 12 months

Docking pipeline — D/E vessels per quarter

38
Q3
45
Q4
39
'27 Q1
40
'27 Q2
34
'27 Q3
32
'27 Q4
30
'28 Q1
35
'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 1,462 5–10% €400k–1,200k — vendor claim
Rotor sails (per unit) 730 route-dependent €1,500k–3,500k — vendor claim
Suction wing sails (per unit) 730 route-dependent €1,000k–2,500k — vendor claim
Turbocharger cut-out 627 1–3% €80k–250k — vendor claim
Bulbous bow reprofiling 566 2–6% €300k–900k — vendor claim
Shaft generator / PTO 96 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
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
3.18
greenest (g CO₂/dwt·nm)
14.44
segment median
# Vessel Size (DWT) Built Carbon intensity — AER (g CO₂/dwt·nm) Grade
301 ALBERTO TOPIC
IMO 9728473
 34,356 2015
6.2
A
302 V TAURUS
IMO 9496161
 33,193 2010
6.2
A
303 LADY SERRA
IMO 9449883
 30,124 2010
6.2
A
304 IRON LADY
IMO 9385099
 32,283 2009
6.2
A
306 SAGA VIKING
IMO 9233466
 46,901 2002
6.2
A
305 REESTBORG
IMO 9592563
 23,317 2013
6.2
A
308 21 HONOR
IMO 9495363
 37,155 2012
6.2
A
307 BERGE ANNUPURI
IMO 9713193
 34,536 2016
6.2
A
309 NORDIC MALMOE
IMO 9602679
 35,843 2012
6.2
A
310 ACACIA
IMO 9597642
 33,677 2008
6.2
A
312 SWORD LION
IMO 9136785
 27,919 1996
6.2
A
311 UBC SALAVERRY
IMO 9426881
 33,305 2010
6.2
A
314 PATRIA
IMO 9580053
 32,069 2014
6.3
A
313 FU HAI
IMO 9766657
 31,777 2016
6.3
A
315 HANA H
IMO 9143855
 8,104 1998
6.3
A
317 ATHENA SAN
IMO 9623659
 38,503 2011
6.3
A
316 MELOI
IMO 9392119
 33,355 2009
6.3
A
318 SEA FAITH
IMO 9655420
 33,343 2014
6.3
A
319 ECO MONEGASQUE
IMO 9701011
 33,190 2013
6.3
A
320 V LYRA
IMO 9539444
 33,628 2012
6.3
A
322 ZIMRIDA
IMO 9380817
 37,296 2008
6.3
A
321 TIAN XI
IMO 9704764
 38,098 2016
6.3
A
324 TIAN LE
IMO 9722730
 37,994 2016
6.4
A
323 ARIANDA
IMO 9537276
 37,495 2010
6.4
A
325 COOL BREEZE
IMO 9400930
 32,283 2010
6.4
A
326 LADY ZEHRA
IMO 9309617
 31,734 2006
6.4
A
327 AMELIE
IMO 9647289
 34,650 2013
6.4
A
329 ECO NEMESIS
IMO 9711913
 33,375 2015
6.4
A
328 SATURN J
IMO 9546174
 33,478 2010
6.4
A
330 TAN BINH 299
IMO 9459149
 33,132 2011
6.4
A
331 ERNA OLDENDORFF
IMO 9717670
 38,613 2016
6.4
A
332 SHAMAN WISDOM
IMO 9563407
 35,052 2010
6.4
A
333 GRAIN WAY
IMO 9545560
 23,000 2009
6.4
A
335 UBC TAMPA
IMO 9416707
 37,724 2009
6.4
A
334 SSI MERAL HANIM
IMO 9491678
 37,238 2011
6.4
A
337 K BEREKET
IMO 9370408
 33,225 2008
6.5
A
336 CORINTHIAN SPIRE
IMO 9478482
 32,154 2009
6.5
A
338 KAMENARI
IMO 9400942
 32,326 2010
6.5
A
339 BC LARA
IMO 9598024
 38,494 2011
6.5
A
340 EKATERINA
IMO 9641807
 38,182 2013
6.5
A
341 V CETUS
IMO 9370381
 33,401 2008
6.5
A
342 IWAMI
IMO 9414981
 20,142 2009
6.5
A
343 PLUTO
IMO 9432531
 32,092 2014
6.5
A
347 AMIRA MARYANA
IMO 9379650
 32,029 2007
6.5
A
346 KERASIA S
IMO 9496185
 33,170 2011
6.5
A
345 FIRST BROTHER
IMO 9266140
 32,385 2003
6.5
A
344 NORDIC OSLO
IMO 9626601
 35,866 2012
6.5
A
350 NANAMI FORTUNE
IMO 9712656
 33,421 2014
6.6
A
349 NOVI
IMO 9424120
 34,044 2011
6.6
A
348 GLOBAL ARSENAL
IMO 9363302
 32,313 2008
6.6
A
Page 7 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.