Container Ship 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
1,079 at D/E2,510 rated vessels · 443 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 |
|---|---|---|---|---|---|
| Turbocharger cut-out | 1,640 | 1–3% | €80k–250k | — | vendor claim |
| Propeller redesign / replacement | 1,427 | 5–10% | €400k–1,200k | — | vendor claim |
| Bulbous bow reprofiling | 1,330 | 2–6% | €300k–900k | — | vendor claim |
| Methanol dual-fuel conversion | 933 | 5–15% | €8,000k–20,000k | — | vendor claim |
| LNG dual-fuel conversion | 763 | 15–25% | €15,000k–35,000k | — | vendor claim |
| Shaft generator / PTO | 348 | 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
Retrofit prospects — worst band first
| Vessel | Band | Age | Drop year |
|---|---|---|---|
| HANSA AFRICA · 25-60k | E | 16y | 2026 |
| MSC ANNAMARIA · <25k | E | 1y | 2026 |
| SEPELU · <25k | E | 26y | 2026 |
| C LION · 100-200k | E | 21y | 2026 |
| HAMBURG TRADER · <25k | E | 21y | 2026 |
Note: Container/ro-ro cargo ship vessels are excluded from this ranking — their CII type is a per-vessel flag-state determination, so no valid comparison metric exists for them.
| # | Vessel | Size (TEU) | Built | Carbon intensity — AER (g CO₂/dwt·nm) | Grade |
|---|---|---|---|---|---|
| 1651 |
CIRTA
IMO 9845051
|
1,500 TEU | 2020 |
14.5
|
E |
| 1652 |
BRUARFOSS
IMO 9822841
|
2,150 TEU | 2020 |
14.5
|
E |
| 1653 |
CMA CGM HOMERE
IMO 9362322
|
1,713 TEU | 2007 |
14.5
|
E |
| 1654 |
ESSENCE
IMO 9491496
|
1,436 TEU | 2011 |
14.5
|
E |
| 1655 |
A LA MARINE
IMO 9386524
|
1,440 TEU | 2009 |
14.5
|
E |
| 1656 |
NORDLUCHS
IMO 9673666
|
1,730 TEU | 2014 |
14.5
|
E |
| 1657 |
MERATUS JAYAKARTA
IMO 9305879
|
2,474 TEU | 2005 |
14.6
|
E |
| 1658 |
MSC ASLI
IMO 9162631
|
1,388 TEU | 2000 |
14.6
|
E |
| 1659 |
OYKU A
IMO 9292462
|
1,223 TEU | 2005 |
14.7
|
E |
| 1660 |
CMA CGM SAINT LAURENT
IMO 9709219
|
2,100 TEU | 2015 |
14.7
|
E |
| 1661 |
EF EMIRA
IMO 9357810
|
1,706 TEU | 2008 |
14.7
|
E |
| 1662 |
AS FRANZISKA
IMO 9295517
|
1,345 TEU | 2005 |
14.7
|
E |
| 1663 |
MSC NITA
IMO 9084607
|
1,512 TEU | 1996 |
14.7
|
E |
| 1664 |
MSC EMILIE
IMO 9334832
|
1,732 TEU | 2006 |
14.7
|
E |
| 1665 |
EMOTION
IMO 9359258
|
1,440 TEU | 2008 |
14.8
|
E |
| 1666 |
CONTSHIP RUN
IMO 9306237
|
1,432 TEU | 2007 |
14.8
|
E |
| 1667 |
FREDERIK
IMO 9328637
|
1,200 TEU | 2005 |
14.8
|
E |
| 1668 |
CAPE FULMAR
IMO 9359313
|
1,440 TEU | 2007 |
14.8
|
E |
| 1669 |
MSC AGNA II
IMO 9509774
|
1,496 TEU | 2009 |
14.9
|
E |
| 1670 |
OKEE ALICIA
IMO 9334818
|
1,740 TEU | 2007 |
14.9
|
E |
| 1671 |
HARRISON
IMO 9220079
|
1,197 TEU | 2002 |
15.0
|
E |
| 1672 |
LASALLE
IMO 9349368
|
2,450 TEU | 2006 |
15.0
|
E |
| 1673 |
WYBELSUM
IMO 9386976
|
1,402 TEU | 2008 |
15.0
|
E |
| 1674 |
MSC NORDEROOG F
IMO 9256315
|
1,402 TEU | 2004 |
15.0
|
E |
| 1675 |
ONUR G.A
IMO 9238076
|
1,221 TEU | 2001 |
15.0
|
E |
| 1676 |
MARINA L
IMO 9431331
|
1,368 TEU | 2009 |
15.1
|
E |
| 1677 |
CHATTANOOGA
IMO 9611034
|
1,042 TEU | 2012 |
15.1
|
E |
| 1678 |
MEDKON ANKA
IMO 9366469
|
1,155 TEU | 2007 |
15.1
|
E |
| 1679 |
MSC PALATIUM III
IMO 9336165
|
2,546 TEU | 2006 |
15.1
|
E |
| 1680 |
AS SABRINA
IMO 9387463
|
1,713 TEU | 2009 |
15.1
|
E |
| 1681 |
DETTIFOSS
IMO 9822853
|
2,150 TEU | 2020 |
15.2
|
E |
| 1682 |
CONTSHIP SEA
IMO 9306213
|
1,432 TEU | 2007 |
15.2
|
E |
| 1683 |
MANDO
IMO 9175705
|
1,174 TEU | 1999 |
15.2
|
E |
| 1684 |
CELSIUS NEW ORLEANS
IMO 9412842
|
1,577 TEU | 2007 |
15.3
|
E |
| 1685 |
BG GREEN
IMO 9964613
|
1,400 TEU | 2021 |
15.3
|
E |
| 1686 |
TUKUMA ARCTICA
IMO 9822865
|
2,150 TEU | 2020 |
15.3
|
E |
| 1687 |
MSC IRA II
IMO 9323493
|
1,732 TEU | 2007 |
15.3
|
E |
| 1688 |
ANNALISA P
IMO 9437141
|
1,296 TEU | 2008 |
15.3
|
E |
| 1689 |
RUTH BORCHARD
IMO 9212034
|
1,216 TEU | 2000 |
15.3
|
E |
| 1690 |
EAGLE II
IMO 9301122
|
1,402 TEU | 2006 |
15.4
|
E |
| 1691 |
DOUCE FRANCE
IMO 9845661
|
2,296 TEU | 2020 |
15.5
|
E |
| 1692 |
SPIRIT OF CHENNAI
IMO 9813840
|
1,162 TEU | 2019 |
15.5
|
E |
| 1693 |
JOST
IMO 9477347
|
1,338 TEU | 2010 |
15.5
|
E |
| 1694 |
VERA D
IMO 9290177
|
1,678 TEU | 2004 |
15.5
|
E |
| 1695 |
MSC PAXI II
IMO 9256391
|
1,400 TEU | 2004 |
15.6
|
E |
| 1696 |
CMA CGM FORT ST PIERRE
IMO 9261891
|
2,260 TEU | 2003 |
15.6
|
E |
| 1697 |
JONNI RITSCHER
IMO 9333383
|
1,856 TEU | 2006 |
15.6
|
E |
| 1698 |
ELBELLA
IMO 9312640
|
1,740 TEU | 2006 |
15.7
|
E |
| 1699 |
SONDERBORG
IMO 9454242
|
1,080 TEU | 2012 |
15.7
|
E |
| 1700 |
MSC AMY
IMO 9242651
|
1,683 TEU | 2002 |
15.7
|
E |
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.