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Most Emission-Efficient General Cargos

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)
#252 of 1,190 general cargos
CO₂ intensity
6.1 g CO₂/dwt·nm
vs segment average (10.91)
-44% greener
B
1,215
vessels ranked
3.23
greenest (g CO₂/t·nm)
11.21
segment median
# Vessel Size (DWT) Built Carbon intensity — AER (g CO₂/dwt·nm) Grade
251 AGIA PARASKEVI
IMO 9604794
38,238 2011
6.1
B
252 IVS SPARROWHAWK
IMO 9712656
33,421 2014
6.1
B
253 ERNST OLDENDORFF
IMO 9702637
38,599 2015
6.2
B
254 BERGE DAISETSU
IMO 9713179
34,533 2015
6.2
B
255 IVS THANDA
IMO 9701009
37,715 2015
6.2
B
256 STAR GATE
IMO 9400875
32,280 2009
6.2
B
258 SSI MAGNIFICENT
IMO 9391828
32,258 2009
6.2
B
257 TEAL BAY
IMO 9343637
32,327 2007
6.2
B
260 UBC TILBURY
IMO 9416721
37,702 2010
6.2
B
259 ISOLDANA
IMO 9186235
44,691 2000
6.2
B
261 CENDA
IMO 9263071
46,834 2004
6.2
B
262 BASIC ISLAND
IMO 9640061
38,037 2012
6.2
B
263 IVS KNOT
IMO 9459137
33,143 2010
6.2
B
264 V TAURUS
IMO 9496161
33,193 2010
6.2
B
267 SUPERNOVA B
IMO 9610212
36,261 2012
6.2
B
266 ERLYNE
IMO 9382736
50,640 2010
6.2
B
265 TIAN ZHEN
IMO 9722728
38,006 2016
6.2
B
269 IMPRESSION BAY
IMO 9722431
37,470 2015
6.3
B
268 BAM PROTEUS
IMO 9343625
33,782 2007
6.3
B
270 NEPTULUS
IMO 9473705
33,706 2012
6.3
B
271 UBC SANTOS
IMO 9376000
31,569 2008
6.3
B
272 COOL BREEZE
IMO 9400930
32,283 2010
6.3
B
274 UBC TAMPA
IMO 9416707
37,724 2009
6.3
B
273 ALBERTO TOPIC
IMO 9728473
34,356 2015
6.3
B
275 IRON LADY
IMO 9385099
32,283 2009
6.4
B
276 SIDER OLYMPIA
IMO 9641807
38,182 2013
6.4
B
277 ZIMRIDA
IMO 9380817
37,296 2008
6.4
B
278 CYCLADIC SPIRE
IMO 9609330
32,976 2013
6.4
B
280 BULK KING
IMO 9195298
49,999 1999
6.4
B
279 JAUNTY JENNY
IMO 9539444
33,628 2012
6.4
B
281 TEAM BRAVO
IMO 9539341
33,642 2012
6.4
B
282 STAR KILIMANJARO
IMO 9396139
49,862 2009
6.4
B
284 IRIDA GS
IMO 9614311
32,836 2013
6.5
B
283 PRINCESSE OUI
IMO 9711913
33,375 2015
6.5
B
285 BALKAN MARIN
IMO 9416434
38,070 2010
6.5
B
286 PETRA
IMO 9597630
33,688 2011
6.5
B
289 PARLA
IMO 9537977
35,732 2011
6.5
B
288 NOVI
IMO 9424120
34,044 2011
6.5
B
287 UBC SANTA MARTA
IMO 9380805
31,583 2008
6.5
B
290 TIAN FU
IMO 9704738
38,146 2015
6.5
B
291 SODA
IMO 9385221
19,230 2008
6.5
B
292 TIAN YOU
IMO 9823625
37,077 2018
6.5
B
293 V PEGASUS
IMO 9370422
33,248 2008
6.5
B
294 SIDER ONDA
IMO 9700316
40,482 2015
6.5
B
295 ORCUN C
IMO 9499436
33,358 2012
6.6
B
297 SARACA
IMO 9300764
37,833 2005
6.6
B
296 TIAN XI
IMO 9704764
38,098 2016
6.6
B
298 GLORIEUSE
IMO 9646429
38,338 2012
6.6
B
300 TIAN HUI
IMO 9774599
37,129 2017
6.6
B
299 SILVER LAKE
IMO 9377963
33,361 2008
6.6
B
Page 6 of 24 — 1,190 vessels
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.