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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)
#81 of 2,380 general cargos
CO₂ intensity
4.6 g CO₂/dwt·nm
vs segment average (13.95)
-67% 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

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) 627 route-dependent €1,500k–3,500k — vendor claim
Suction wing sails (per unit) 627 route-dependent €1,000k–2,500k — vendor claim
Bulbous bow reprofiling 572 2–6% €300k–900k — vendor claim
Turbocharger cut-out 525 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

244
D/E vessels with at least one eligible measure
€95–286M
capex range, top measure per vessel (244 of 244 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
51 GREEN KOTKA
IMO 9976056
 68,003 2023
4.3
A
53 HOLLY ARROW
IMO 9819985
 60,803 2018
4.3
A
52 COSCO SHIPPING ZHUO YUE
IMO 9872157
 61,990 2019
4.3
A
54 ELISABETH OLDENDORFF
IMO 9717656
 38,600 2015
4.3
A
56 BAY PEARL
IMO 9460801
 51,703 2011
4.3
A
55 DELOS DAWN
IMO 9363675
 52,224 2008
4.3
A
57 DEVBULK DENIZ
IMO 9758301
 41,500 2020
4.3
A
58 WANG FU
IMO 9998066
 61,676 2025
4.3
A
60 COSCO SHIPPING FOUNTAIN
IMO 9928891
 61,495 2022
4.4
A
59 ZHONG YUAN HAI YUN KAI TUO
IMO 9837640
 62,050 2018
4.4
A
61 THOR FEARLESS
IMO 9317341
 54,881 2005
4.4
A
63 PROVIDANA
IMO 9380788
 58,022 2007
4.4
A
62 GREEN KEMI
IMO 9976044
 64,986 2023
4.4
A
64 OKIANA
IMO 9253868
 57,599 2004
4.4
A
65 BBC CERES
IMO 9972490
 40,600 2024
4.4
A
66 HERBERT
IMO 9931551
 61,762 2022
4.4
A
67 DEVBULK DAMLA
IMO 9711717
 37,322 2015
4.5
A
68 AMERICA PEARL
IMO 9659751
 45,556 2014
4.5
A
69 COSCO SHIPPING PENG BO
IMO 9928920
 61,575 2023
4.5
A
70 PIPIT ARROW
IMO 9552898
 62,980 2012
4.5
A
71 COSCO SHIPPING SINCERE
IMO 9928877
 61,641 2022
4.5
A
72 COSCO SHIPPING VISION
IMO 9881677
 61,942 2021
4.5
A
74 BBC APOLLO
IMO 9972488
 40,565 2023
4.5
A
73 POSIDANA
IMO 9371086
 58,022 2008
4.5
A
75 GREEN RAUMA
IMO 9976070
 68,010 2023
4.5
A
76 ZHONG YUAN HAI YUN JIN QU
IMO 9846495
 62,045 2019
4.6
A
77 MANTA NIGAR
IMO 9749843
 34,391 2016
4.6
A
78 COSCO SHIPPING FAN RONG
IMO 9928906
 61,537 2022
4.6
A
80 SAGA FORTUNE
IMO 9644524
 56,023 2012
4.6
A
79 BBC PLUTO
IMO 1020459
 40,459 2025
4.6
A
81 IVS PHINDA
IMO 9700940
 37,720 2014
4.6
A
82 GREEN AANEKOSKI
IMO 9976082
 64,986 2023
4.6
A
84 COSCO SHIPPING CHANG SHENG
IMO 9928918
 61,567 2022
4.6
A
83 LUNARA
IMO 9443126
 33,709 2010
4.6
A
85 SAGA FLORA
IMO 9502348
 55,807 2018
4.6
A
86 SAGA FJORD
IMO 9613862
 55,596 2013
4.7
A
87 IRVINE BAY
IMO 9682928
 37,920 2014
4.7
A
88 SAGA FRIGG
IMO 9613850
 55,596 2013
4.7
A
89 GREEN ITAJAI
IMO 9976446
 64,997 2024
4.7
A
91 POLSTEAM RUDNO
IMO 9984821
 37,630 2025
4.7
A
90 DEVBULK SARE
IMO 9544152
 40,445 2012
4.7
A
92 SPANACO ADVENTURE
IMO 9014078
 47,076 1994
4.7
A
94 COSCO SHIPPING JIN XIU
IMO 9872169
 62,002 2019
4.7
A
93 STRAIT PEARL
IMO 9607576
 50,630 2011
4.7
A
95 BBC SATURN
IMO 9932127
 40,255 2022
4.7
A
99 BEATRICE
IMO 9865245
 39,278 2019
4.7
A
98 SSI ENDEAVOUR
IMO 9883053
 37,910 2020
4.7
A
97 ORION
IMO 9495935
 51,679 2012
4.7
A
96 STAR TOSCANA
IMO 9452139
 51,674 2012
4.7
A
100 SAGA SKY
IMO 9144354
 47,034 1996
4.8
A
Page 2 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.