Chemical Tanker 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.
CII band distribution
414 at D/E1,698 rated vessels · 175 of the D/E set dock within 12 months
Docking pipeline — D/E vessels per quarter
Windows estimated from the class-expiry docking model, not bookings.
Top eligible retrofit measures for this segment
| Measure | Eligible | CO₂ reduction | Capex band | Payback | Confidence |
|---|---|---|---|---|---|
| Propeller redesign / replacement | 1,299 | 5–10% | €400k–1,200k | — | vendor claim |
| Turbocharger cut-out | 968 | 1–3% | €80k–250k | — | vendor claim |
| Bulbous bow reprofiling | 929 | 2–6% | €300k–900k | — | vendor claim |
| Rotor sails (per unit) | 882 | route-dependent | €1,500k–3,500k | — | vendor claim |
| Suction wing sails (per unit) | 882 | route-dependent | €1,000k–2,500k | — | vendor claim |
| Methanol dual-fuel conversion | 696 | 5–15% | €8,000k–20,000k | — | vendor claim |
Capex bands are indicative vendor/literature priors. Payback appears once price parameters are configured.
Retrofit opportunity in this segment
Retrofit prospects — worst band first
| Vessel | Band | Age | Drop year |
|---|---|---|---|
| MEHTAP · 25-60k | E | 18y | 2026 |
| MARIA IMMACULATA · <25k | E | 14y | 2026 |
| HARBOUR PROGRESS · <25k | E | 16y | 2026 |
| HERCULES SKY · <25k | E | 5y | 2026 |
| NAVE ATRIA · 25-60k | E | 14y | 2026 |
| # | Vessel | Size (DWT) | Built | Carbon intensity — AER (g CO₂/dwt·nm) | Grade |
|---|---|---|---|---|---|
| 851 |
GLEN COVE
IMO 9414228
|
25,615 | 2008 |
10.4
|
D |
| 852 |
PVT AZURA
IMO 9423683
|
19,937 | 2009 |
10.4
|
D |
| 853 |
SEYCHELLES PROGRESS
IMO 9298181
|
37,558 | 2005 |
10.4
|
D |
| 854 |
FAIRCHEM CONQUEST
IMO 9798648
|
21,176 | 2017 |
10.4
|
D |
| 855 |
MARIA M
IMO 9301885
|
34,999 | 2006 |
10.4
|
D |
| 856 |
ACADIA PARK
IMO 9780548
|
19,996 | 2018 |
10.4
|
D |
| 857 |
GAIA DESGAGNES
IMO 9739800
|
17,999 | 2018 |
10.4
|
D |
| 858 |
OPEC VICTORY
IMO 9499486
|
19,992 | 2012 |
10.4
|
D |
| 859 |
OCTONAUT
IMO 9340477
|
19,983 | 2007 |
10.4
|
D |
| 860 |
NISEKO GALAXY
IMO 9804930
|
25,183 | 2020 |
10.5
|
D |
| 861 |
CHEMSTAR SAPPHIRE
IMO 9804904
|
19,993 | 2019 |
10.5
|
D |
| 862 |
SEAVICTORY
IMO 9315783
|
46,700 | 2007 |
10.5
|
D |
| 863 |
CHEMICAL ENTERPRISE
IMO 9827475
|
15,945 | 2018 |
10.5
|
D |
| 864 |
SOLAR NAAMA
IMO 9887396
|
24,621 | 2021 |
10.5
|
D |
| 865 |
MARIE C
IMO 9749348
|
25,161 | 2014 |
10.5
|
D |
| 866 |
MTM SINGAPORE
IMO 9477529
|
19,996 | 2011 |
10.5
|
D |
| 867 |
ORIENTAL GERBERA
IMO 9924716
|
16,279 | 2022 |
10.5
|
D |
| 868 |
MAGIC WAND
IMO 9379143
|
46,754 | 2008 |
10.5
|
D |
| 869 |
OGINO PARK
IMO 9725873
|
19,992 | 2017 |
10.5
|
D |
| 870 |
SWAN ATLANTIC
IMO 9790464
|
19,998 | 2017 |
10.5
|
D |
| 871 |
THUN LIDKOPING
IMO 9828974
|
18,684 | 2019 |
10.6
|
D |
| 872 |
ORIENTAL SAKURA
IMO 9743746
|
16,090 | 2015 |
10.6
|
D |
| 873 |
BOW VICTORY
IMO 9773179
|
21,193 | 2016 |
10.6
|
D |
| 874 |
HALTI
IMO 9818278
|
17,993 | 2019 |
10.6
|
D |
| 875 |
CHEM SPICA
IMO 9739264
|
25,268 | 2017 |
10.6
|
D |
| 876 |
SONGA EAGLE
IMO 9388704
|
25,421 | 2008 |
10.6
|
D |
| 877 |
GINGA LYNX
IMO 9442550
|
25,900 | 2009 |
10.6
|
D |
| 878 |
MTM NORTH SOUND
IMO 9360946
|
19,874 | 2006 |
10.7
|
D |
| 879 |
CHEM SIRIUS
IMO 9558397
|
19,986 | 2011 |
10.7
|
D |
| 880 |
FAIRCHEM FALCON
IMO 9799642
|
19,952 | 2018 |
10.7
|
D |
| 881 |
MOUNT KIBO
IMO 9470997
|
37,843 | 2010 |
10.7
|
D |
| 882 |
ORIENTAL DAPHNE
IMO 9882736
|
16,267 | 2020 |
10.7
|
D |
| 883 |
MEIZAN
IMO 9881940
|
19,913 | 2023 |
10.7
|
D |
| 884 |
TERN ISLAND
IMO 9909649
|
15,024 | 2021 |
10.7
|
D |
| 885 |
HYDE PARK
IMO 9725861
|
19,994 | 2017 |
10.7
|
D |
| 886 |
FINNSTRAUM
IMO 9172222
|
16,028 | 1999 |
10.8
|
D |
| 887 |
ALDEN
IMO 9733363
|
19,997 | 2016 |
10.8
|
D |
| 888 |
ORLANDO
IMO 9420851
|
38,334 | 2009 |
10.8
|
D |
| 889 |
CITY ISLAND
IMO 9360960
|
19,996 | 2007 |
10.8
|
D |
| 890 |
MELDERSKIN
IMO 9737577
|
19,999 | 2014 |
10.8
|
D |
| 891 |
STOLT QUETZAL
IMO 9376660
|
12,564 | 2009 |
10.8
|
D |
| 892 |
CLEAN IMPERIAL
IMO 9376854
|
39,998 | 2009 |
10.8
|
D |
| 893 |
TG ARIES
IMO 9485849
|
19,956 | 2012 |
10.9
|
D |
| 894 |
OLYMPIC SPIRIT
IMO 9327097
|
24,035 | 2005 |
10.9
|
D |
| 895 |
NORDIC MARITA
IMO 9558402
|
19,909 | 2012 |
10.9
|
D |
| 896 |
SERENE MONACO
IMO 9309629
|
19,999 | 2005 |
10.9
|
D |
| 897 |
ALICE
IMO 9323792
|
37,320 | 2007 |
10.9
|
D |
| 898 |
DAMIANIA
IMO 9308235
|
20,768 | 2006 |
10.9
|
D |
| 899 |
BALTIC SAPPHIRE
IMO 9443425
|
37,593 | 2009 |
10.9
|
D |
| 900 |
ICHESIA M
IMO 9436678
|
40,429 | 2009 |
10.9
|
D |
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.
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.