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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)
#169 of 1,190 general cargos
CO₂ intensity
5.5 g CO₂/dwt·nm
vs segment average (10.91)
-49% 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) 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
1,215
vessels ranked
3.23
greenest (g CO₂/dwt·nm)
11.21
segment median
# Vessel Size (DWT) Built Carbon intensity — AER (g CO₂/dwt·nm) Grade
151 MOUNT HIKURANGI
IMO 9580039
 33,030 2013
5.4
A
153 ARBORELLA
IMO 9613288
 57,540 2012
5.4
A
152 RIJN CONFIDENCE
IMO 9635248
 33,328 2013
5.4
A
154 HARDANGER
IMO 9079119
 50,198 1995
5.5
A
155 DEMA M
IMO 9255074
 32,259 2003
5.5
A
156 VALENTINA 1
IMO 9336830
 50,199 2007
5.5
A
158 STAR JAVA
IMO 9310513
 44,692 2006
5.5
A
157 DEVBULK DEMET
IMO 9625592
 30,124 2012
5.5
A
159 NIMBLE NICKY
IMO 9424091
 31,887 2010
5.5
A
160 GULLHOLMEN ISLAND
IMO 9605085
 38,309 2011
5.5
A
162 DEVBULK SINEM
IMO 9416458
 38,009 2013
5.5
A
161 DELICATA
IMO 9613317
 57,441 2013
5.5
A
163 SAGA MORUS
IMO 9117741
 56,816 1997
5.5
A
164 STAR HARMONIA
IMO 9103130
 46,604 1998
5.5
A
166 BERGE GALDHOPIGGEN
IMO 9753284
 38,907 2017
5.5
A
165 GARDNO
IMO 9767704
 36,643 2018
5.5
A
167 ARTAX
IMO 9623063
 37,072 2014
5.5
A
168 EMMA OLDENDORFF
IMO 9676606
 38,300 2014
5.5
A
170 DEVBULK BEGUM
IMO 9625607
 30,124 2012
5.5
A
169 SEA FALCON
IMO 9401843
 51,725 2010
5.5
A
172 SAGA EXPLORER
IMO 9343493
 46,500 2006
5.6
A
171 REGAL RACHEL
IMO 9424089
 31,881 2010
5.6
A
173 ADASUN
IMO 9747053
 34,483 2017
5.6
A
174 CHARISMA.GR
IMO 9834856
 37,295 2019
5.6
A
175 RADIANT REB
IMO 9633197
 38,233 2012
5.6
A
176 FALCON S
IMO 9329423
 37,406 2007
5.6
A
178 NORWAY PEARL
IMO 9731224
 45,474 2015
5.6
A
177 TEAL ARROW
IMO 9186780
 36,466 1999
5.6
A
179 SAGA TUCANO
IMO 9160803
 47,032 1998
5.6
A
180 PELICANA
IMO 9401790
 58,022 2009
5.6
A
182 DEVBULK ALARA
IMO 9449895
 30,130 2011
5.6
A
181 AFRICAN RAVEN
IMO 9700287
 37,711 2014
5.6
A
183 FEDERAL RUHR
IMO 9766176
 36,575 2017
5.6
A
184 SAGA SKY
IMO 9144354
 47,034 1996
5.6
A
185 STAR KINN
IMO 9396141
 49,850 2010
5.6
A
187 LONGVIEW LOGGER
IMO 9338541
 33,527 2007
5.7
A
186 ELM ARROW
IMO 9419254
 53,035 2010
5.7
A
188 POCHARD S
IMO 9363314
 32,285 2007
5.7
A
190 SAGA FALCON
IMO 9613848
 55,596 2012
5.7
A
189 SSI MERAL HANIM
IMO 9491678
 37,238 2011
5.7
A
191 CRIMSON MAJESTY
IMO 9660059
 38,035 2013
5.7
A
192 CETUS SEI
IMO 9526722
 36,936 2014
5.7
A
193 SIBAL
IMO 9712620
 33,364 2015
5.7
A
194 AFRICAN OWL
IMO 9701255
 34,370 2016
5.7
A
195 CENTURIUS
IMO 9712618
 33,367 2015
5.7
A
198 CANNY CAROLINE
IMO 9580027
 32,070 2012
5.8
A
197 ARACARI ARROW
IMO 9008706
 46,956 1992
5.8
A
196 TRINIDAD PEARL
IMO 9659737
 45,556 2014
5.8
A
200 POLSTEAM KOPROWO
IMO 9971862
 37,592 2024
5.8
A
199 RIZABEY
IMO 9197117
 24,999 1999
5.8
A
Page 4 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.