TonneMiles

Container ship · Liberia flag

MSC MARIELLA: CO₂ emissions 2023–2025

IMO 9934747 EU ETS3 reporting years

CO₂ reported 2025
42,187 t
Fuel burned
13,543 t
Distance
36,084 nm
Time at sea
2,750 h
Emitted at berth
2% of total
Share of year under way
31%

MSC MARIELLA against its type

It is one of 976 container ships here under the Liberia flag, 27.9% of the 3,495 on the register. The returns for 2023–2025 all give Monrovia as port of registry.

Its 42,187 t of CO₂ for 2025 is 2.6 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 1,169.1 kg CO₂, 2.1 times the type median of 545.6 kg. It logged 2,750 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 3 years with reported emissions, the highest was 2024 (86,346 t) and the lowest 2023 (25,549 t). Its efficiency percentile within the type went from 7 in 2023 to 3 in 2025 (lower is more efficient). Of the 8 comparable vessels listed below with a 2025 return, 8 reported a lower CO₂ per nautical mile than this vessel.

Emissions by year2023–2025

Year CO₂ (t) Fuel (t) Distance (nm) At sea (h) At berth (t) kg CO₂/nm EEOI Percentile
2025 42,187 13,543 36,084 2,750 897 1,169.1 5.9 3
2024 86,346 27,722 75,541 5,649 1,720 1,143.0 6.6 7
2023 25,549 8,194 22,328 1,654 649 1,144.3 6.5 7

Vessel particulars

IMO number
9934747
Ship type
Container ship
Flag state
Liberia per EU MRV 2025
Port of registry
Monrovia MRV 2025
Technical efficiency (design)
EEXI (6.23 gCO₂/t·nm)
Verifier
DNV, Germany
Accreditation
VS-16026-01
Compliance document issued
2026-01-29
Compliance document expires
2027-06-30

Efficiency against its own type2025

Position 52 of 1,838 qualifying container ships by EEOI, at the 3rd percentile. The dashed line is the type median, 14.2; this vessel reported 5.9.

0255075100more efficientless efficientThis vessel: 3rd percentile, EEOI 5.9

EEOI divides emissions by transport work, which for this vessel and year was 7,126,173,986 tonne-miles over 36,084 nautical miles.

Reported CO₂ by year

2023: 25,549 t202325,5492024: 86,346 t20242025: 42,187 t202542,187

Reported CO₂ in 2025 was 65.1% higher than in 2023, for EU/EEA voyages only.

From 2024 to 2025, emissions fell 51.1% while distance sailed fell 52.2%and CO₂ per nautical mile rose 2.3%.That points mainly to how much the vessel sailed, rather than the other.

Where the 2025 emissions occurred

At berthAt berth: 897 t897Within EEA portsWithin EEA ports: 897 t897Voyages between EEA portsVoyages between EEA ports: 3,824 t3,824Voyages to an EEA portVoyages to an EEA port: 23,905 t23,905Voyages from an EEA portVoyages from an EEA port: 13,561 t13,561

Methane, nitrous oxide and EU ETS2025

Total CO₂ equivalent
42,852 t
Methane (CH₄)
0.68 t
Nitrous oxide (N₂O)
2.44 t
Under EU ETS
23,454 t, 56% of total

Sources and how to read this

This page draws on 3 MRV reporting years, an efficiency ranking and 1 of 5 vessel particulars. Not found in the sources for this vessel: AIS movements in Norwegian waters, a name history, 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 vesselsnearest by tonnage, same type