KOI: CO₂ emissions 2018–2025

KOI against its type

Built in 2011, it is 3 years newer than the median container ship on this register, which was built in 2008 (3,088 vessels with a known build year). At 91,650 gross tonnage it is larger than 72% of the other 3,000 container ships with a recorded tonnage. It is one of 976 container ships here under the Liberia flag, 27.9% of the 3,495 on the register. The same builder is recorded for 461 other vessels here, 155 of them container ships. Its MRV returns name it SM SAVANNAH for 2018 and KOI for 2021–2025. The returns for 2018–2025 all give Monrovia as port of registry.

Its 34,642 t of CO₂ for 2025 is 2.1 times the median of 16,359 t among the 2,234 container ships on this register that reported for 2025. Per nautical mile it emitted 772.0 kg CO₂, 41% above the type median of 545.6 kg. It logged 2,880 hours at sea against a median of 3,155 hours for its type that year. 2.1% of its 2025 emissions were at berth; the median for container ships was 3.2%. Across 6 years with reported emissions, the highest was 2024 (71,448 t) and the lowest 2023 (7,754 t). Its efficiency percentile within the type went from 32 in 2018 to 34 in 2025 (lower is more efficient). Of the 5 sister ships listed below with a 2025 return, 4 reported a lower CO₂ per nautical mile than this vessel.

Emissions by year2018–2025

Vessel particulars

IMO number

9461489

Previously reported as

SM SAVANNAH

Ship type

Container ship

Gross tonnage

91,650

Length overall

335.0 m

Year built

2011

Flag state

Liberia per EU MRV 2025

Builder

HD Hyundai Samho

Port of registry

Monrovia MRV 2025

Technical efficiency (design)

EEXI (10.61 gCO₂/t·nm)

Verifier

RINA HELLAS LTD, Greece

Accreditation

1325

Compliance document issued

2026-06-08

Compliance document expires

2027-06-30

Efficiency against its own type2025

Position 619 of 1,838 qualifying container ships by EEOI, at the 34th percentile. The dashed line is the type median, 14.2; this vessel reported 10.6.

EEOI divides emissions by transport work, which for this vessel and year was 3,280,502,841 tonne-miles over 44,871 nautical miles.

Reported CO₂ by year

Reported CO₂ in 2025 was 242.5% higher than in 2018, for EU/EEA voyages only. No return is recorded for 2019, 2020, so the series has gaps.

From 2024 to 2025, emissions fell 51.5% while distance sailed fell 51.0%and CO₂ per nautical mile fell 1.1%.That points mainly to how much the vessel sailed, rather than the other.

Where the 2025 emissions occurred

Methane, nitrous oxide and EU ETS2025

Total CO₂ equivalent

35,188 t

Methane (CH₄)

0.56 t

Nitrous oxide (N₂O)

2.00 t

Verifier history

A change of verifier is not in itself a sign of anything being wrong.

Sources and how to read this

• Emissions: EU MRV publication (THETIS-MRV), reporting years 2018–2025, published by the European Commission.
• Vessel particulars: Wikidata (CC0).

This page draws on 6 MRV reporting years, an efficiency ranking, 5 of 5 vessel particulars and a name history. Not found in the sources for this vessel: AIS movements in Norwegian waters, a licensed photograph, a sanctions listing and US port state inspections.

Empty means unreported, never zero. How EEOI, distance, percentiles and sister ships are handled is explained under reading a vessel page. Something wrong? See corrections.

Comparable vesselssister ships and nearest by tonnage

• RHINE MAERSK sister · 2012 · · 36,742 t · 443.7 kg/nm
• MSC ARICA sister · 2012 · · 45,196 t · 781.3 kg/nm
• SM SEOUL sister · 2010 · 41,331 GT · 15,069 t · 502.2 kg/nm
• MSC ODESSA V sister · 2010 · 41,331 GT · 4,449 t · 408.6 kg/nm
• MERKUR ARCHIPELAGO sister · 2009 · 41,331 GT · 3,699 t · 496.3 kg/nm
• MERKUR HORIZON sister · 2009 · 41,331 GT · 14,434 t · 441.6 kg/nm
• BF GIANT sister · 2010 · 41,391 GT · 2,765 t · 518.1 kg/nm
• JOLLY CLIVIA sister · 2010 · 41,391 GT · 4,455 t · 498.3 kg/nm