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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 2024. Lower is greener. Pick a segment and size class to see the greenest vessels first.

Segment rank (2024)
#98 of 1,190 general cargos
CO₂ intensity
5.0 g CO₂/dwt·nm
vs segment average (10.9)
-54% 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

509 at D/E
A 1,033B 687C 506D 258E 251

2,735 rated vessels · 275 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) 763 route-dependent €1,500k–3,500k — vendor claim
Suction wing sails (per unit) 763 route-dependent €1,000k–2,500k — vendor claim
Turbocharger cut-out 659 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
1,215
vessels ranked
3.23
greenest (g CO₂/dwt·nm)
11.12
segment median
# Vessel Size (DWT) Built Carbon intensity — AER (g CO₂/dwt·nm) Grade
51 COSCO SHIPPING FAN RONG
IMO 9928906
 61,537 2022
4.4
A
52 SAGA FORTUNE
IMO 9644524
 56,023 2012
4.5
A
53 BAY PEARL
IMO 9460801
 51,703 2011
4.5
A
54 GREEN HELSINKI
IMO 9976068
 68,023 2023
4.5
A
55 COSCO SHIPPING GRACE
IMO 9928865
 61,614 2021
4.5
A
56 BBC MERCURY
IMO 9965588
 39,869 2023
4.6
A
57 DEVBULK DENIZ
IMO 9758301
 41,500 2020
4.6
A
58 TAWA ARROW
IMO 9401879
 54,274 2006
4.6
A
59 DEVBULK SERVET
IMO 9756250
 41,500 2020
4.6
A
63 HALOPHYLA
IMO 9613329
 57,440 2013
4.6
A
62 SSI FURIOUS
IMO 9960174
 37,973 2023
4.6
A
61 WECO LAURA
IMO 9877327
 38,575 2020
4.6
A
60 OSAKANA
IMO 9253870
 57,624 2004
4.6
A
64 IVS PHINDA
IMO 9700940
 37,720 2014
4.6
A
65 GREEN KOTKA
IMO 9976056
 64,986 2023
4.7
A
67 SSI PROVIDENCE
IMO 9883065
 37,899 2020
4.7
A
66 TENCA ARROW
IMO 9385489
 72,863 2009
4.7
A
68 SAGA FRIGG
IMO 9613850
 55,596 2013
4.7
A
69 GREEN RAUMA
IMO 9976070
 64,986 2023
4.7
A
70 BBC VENUS
IMO 9965590
 39,827 2023
4.7
A
71 COSCO SHIPPING HONOR
IMO 9881653
 62,013 2020
4.7
A
72 SAGA MONAL
IMO 9117739
 56,801 1996
4.8
A
73 GREEN AANEKOSKI
IMO 9976082
 64,986 2023
4.8
A
75 DEVBULK SADIYE
IMO 9711705
 37,322 2015
4.8
A
74 SAGA FUTURE
IMO 9613836
 55,596 2012
4.8
A
76 NANDU ARROW
IMO 9529580
 62,960 2011
4.8
A
77 OCEAN PEARL
IMO 9401829
 52,365 2009
4.8
A
79 CHANNEL PEARL
IMO 9644550
 50,633 2012
4.8
A
78 SAGA ADVENTURE
IMO 9317406
 46,627 2005
4.8
A
80 AFRICAN GROUSE
IMO 9755737
 37,700 2013
4.8
A
81 GREEN KEMI
IMO 9976044
 64,986 2023
4.8
A
82 GREEN MUNGUBA
IMO 9976496
 64,997 2024
4.8
A
83 SSI ENDURANCE
IMO 9932971
 37,973 2022
4.8
A
84 ATLAS S
IMO 9491575
 34,478 2011
4.9
A
85 CITRIODORA
IMO 9613305
 57,440 2013
4.9
A
86 PANAMANA
IMO 9401805
 58,022 2010
4.9
A
87 MAPLE ARROW
IMO 9652569
 55,889 2014
4.9
A
88 STAR TOSCANA
IMO 9452139
 51,674 2012
4.9
A
89 DEVBULK CANSEN
IMO 9703459
 36,706 2014
4.9
A
90 OSHIMANA
IMO 9249295
 53,151 2003
4.9
A
91 SAGA FREYA
IMO 9502336
 55,807 2017
4.9
A
92 SSI ERDOGAN BEY
IMO 9401946
 50,780 2010
4.9
A
93 LAKE PEARL
IMO 9401984
 51,687 2010
5.0
A
94 POSIDANA
IMO 9371086
 58,022 2008
5.0
A
95 RIVER PEARL
IMO 9363663
 52,223 2008
5.0
A
97 SAGA ODYSSEY
IMO 9401788
 46,500 2008
5.0
A
96 SAGA FJORD
IMO 9613862
 55,596 2013
5.0
A
100 FJORD PEARL
IMO 9460796
 51,703 2011
5.0
A
99 DRINA S
IMO 9635743
 38,037 2012
5.0
A
98 BEATRICE
IMO 9865245
 39,278 2019
5.0
A
Page 2 of 24 — 1,190 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 2024 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.