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
415 at D/E1,698 rated vessels · 216 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 | 1,272 | 5–10% | €400k–1,200k | — | vendor claim |
| Turbocharger cut-out | 1,237 | 1–3% | €80k–250k | — | vendor claim |
| Rotor sails (per unit) | 1,080 | route-dependent | €1,500k–3,500k | — | vendor claim |
| Suction wing sails (per unit) | 1,080 | route-dependent | €1,000k–2,500k | — | vendor claim |
| Bulbous bow reprofiling | 915 | 2–6% | €300k–900k | — | vendor claim |
| Methanol dual-fuel conversion | 686 | 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 | 18y | 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 |
|---|---|---|---|---|---|
| 51 |
FPMC 36
IMO 9845180
|
49,721 | 2020 |
4.8
|
A |
| 53 |
ARDMORE SEAWOLF
IMO 9708227
|
49,909 | 2015 |
4.8
|
A |
| 52 |
HAPPY LADY
IMO 9644225
|
51,853 | 2011 |
4.8
|
A |
| 54 |
NORD MIYABI
IMO 9894739
|
49,996 | 2022 |
4.8
|
A |
| 56 |
PICO BASILE
IMO 9776250
|
51,525 | 2016 |
4.9
|
A |
| 55 |
CASTOR
IMO 9864356
|
49,999 | 2018 |
4.9
|
A |
| 57 |
SOLAR TINE
IMO 9898527
|
49,342 | 2021 |
4.9
|
A |
| 58 |
NORD VOLANTE
IMO 9944144
|
50,378 | 2023 |
4.9
|
A |
| 59 |
ARDMORE SEALION
IMO 9708203
|
49,909 | 2015 |
4.9
|
A |
| 63 |
STENA PRO PATRIA
IMO 9899727
|
49,990 | 2022 |
4.9
|
A |
| 62 |
ATLANTIC JOURNEY
IMO 9798935
|
49,999 | 2018 |
4.9
|
A |
| 61 |
ELANDRA REDWOOD
IMO 9834337
|
49,999 | 2018 |
4.9
|
A |
| 60 |
NORD VALOROUS
IMO 9827059
|
50,550 | 2017 |
4.9
|
A |
| 64 |
ATLANTIC HARMONY
IMO 9797747
|
50,090 | 2015 |
4.9
|
A |
| 65 |
SOLAR SUSIE
IMO 9898515
|
49,359 | 2021 |
4.9
|
A |
| 68 |
ARDMORE ENGINEER
IMO 9654787
|
49,272 | 2014 |
4.9
|
A |
| 67 |
EUROCHAMPION
IMO 9895903
|
49,999 | 2021 |
4.9
|
A |
| 66 |
PS MILANO
IMO 9828144
|
49,999 | 2018 |
4.9
|
A |
| 69 |
MINERVA LEO
IMO 9723289
|
39,070 | 2015 |
4.9
|
A |
| 70 |
JESSIE GLORY
IMO 9952983
|
49,700 | 2024 |
4.9
|
A |
| 72 |
EUROSAILOR
IMO 9895915
|
49,999 | 2021 |
4.9
|
A |
| 71 |
FPMC 32
IMO 9831701
|
49,660 | 2019 |
4.9
|
A |
| 73 |
PACIFIC JADE
IMO 9867803
|
49,995 | 2020 |
4.9
|
A |
| 76 |
ARDMORE GIBRALTAR
IMO 9790373
|
49,999 | 2017 |
5.0
|
A |
| 75 |
MARIA
IMO 9917828
|
55,202 | 2022 |
5.0
|
A |
| 74 |
HATAY
IMO 9354258
|
51,218 | 2006 |
5.0
|
A |
| 77 |
PIS PRECIOUS
IMO 9689158
|
50,259 | 2013 |
5.0
|
A |
| 79 |
SEYMOUR SUN
IMO 9911501
|
49,999 | 2022 |
5.0
|
A |
| 78 |
PS HAMBURG
IMO 9657806
|
50,143 | 2016 |
5.0
|
A |
| 80 |
STENA IMPORTANT
IMO 9667497
|
49,731 | 2015 |
5.0
|
A |
| 83 |
KATHERINE LADY
IMO 9916123
|
49,999 | 2022 |
5.0
|
A |
| 82 |
PACIFIC JULIA
IMO 9772046
|
74,324 | 2017 |
5.0
|
A |
| 81 |
SILVER ORLA
IMO 9682332
|
49,746 | 2014 |
5.0
|
A |
| 85 |
TARANAKI SUN
IMO 9751406
|
49,994 | 2016 |
5.0
|
A |
| 84 |
CLEAROCEAN MUSIC
IMO 9800192
|
49,703 | 2018 |
5.0
|
A |
| 86 |
CATHERINE GRACE
IMO 9724611
|
50,099 | 2013 |
5.0
|
A |
| 87 |
MRC SEDEF
IMO 9335032
|
45,951 | 2007 |
5.0
|
A |
| 88 |
HAFNIA CRUX
IMO 9461697
|
52,550 | 2012 |
5.0
|
A |
| 90 |
PACIFIC RUBY
IMO 9906881
|
50,299 | 2021 |
5.0
|
A |
| 89 |
RAWAN
IMO 9845104
|
55,634 | 2020 |
5.0
|
A |
| 91 |
NORD MASTER
IMO 9941295
|
49,999 | 2022 |
5.0
|
A |
| 94 |
LARGO ELEGANCE
IMO 9776470
|
50,118 | 2015 |
5.0
|
A |
| 93 |
POINT LISAS
IMO 9905162
|
49,996 | 2021 |
5.0
|
A |
| 92 |
ELANDRA OAK
IMO 9509449
|
49,999 | 2016 |
5.0
|
A |
| 95 |
CL CHARLOTTE BRONTE
IMO 9943310
|
49,347 | 2023 |
5.1
|
A |
| 96 |
CL JANE AUSTEN
IMO 9943308
|
49,327 | 2022 |
5.1
|
A |
| 97 |
HAFNIA DAISY
IMO 9709788
|
49,899 | 2016 |
5.1
|
A |
| 99 |
EUROTRADER
IMO 9895927
|
49,999 | 2021 |
5.1
|
A |
| 98 |
NORD MARINER
IMO 9941300
|
49,999 | 2023 |
5.1
|
A |
| 100 |
LORA
IMO 9917804
|
55,202 | 2022 |
5.1
|
A |
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.