Container ship · Denmark flag · built 2014

MAREN MAERSK: CO₂ emissions 2018–2025

IMO 9632129 EU ETS8 reporting years

CO₂ reported 2025: 53,967 t
Fuel burned: 17,321 t
Distance: 56,982 nm
Time at sea: 3,676 h
Emitted at berth: 2% of total
Share of year under way: 42%
Gross tonnage: 182,000

MAREN MAERSK against its type

Built in 2014, it is 6 years newer than the median container ship on this register, which was built in 2008 (3,088 vessels with a known build year). At 182,000 gross tonnage it is larger than 95% of the other 3,000 container ships with a recorded tonnage. It is one of 119 container ships here under the Denmark flag, 3.4% of the 3,495 on the register. The same builder is recorded for 660 other vessels here, 231 of them container ships. The returns for 2018–2025 all give Ringkobing as port of registry.

Its 53,967 t of CO₂ for 2025 is 3.3 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 947.1 kg CO₂, 1.7 times the type median of 545.6 kg. It logged 3,676 hours at sea against a median of 3,155 hours for its type that year. 1.9% of its 2025 emissions were at berth; the median for container ships was 3.2%. Across 8 years with reported emissions, the highest was 2024 (69,100 t) and the lowest 2019 (40,679 t). Its efficiency percentile within the type went from 8 in 2018 to 7 in 2025 (lower is more efficient). Of the 7 sister ships listed below with a 2025 return, 4 reported a lower CO₂ per nautical mile than this vessel.

Emissions by year2018–2025

Year	CO₂ (t)	Fuel (t)	Distance (nm)	At sea (h)	At berth (t)	kg CO₂/nm	EEOI	Percentile
2025	53,967	17,321	56,982	3,676	1,010	947.1	6.6	7
2024	69,100	22,177	63,532	3,837	713	1,087.6	6.3	6
2023	41,724	13,367	41,968	2,824	1,456	994.2	5.7	2
2022	43,414	13,594	46,028	3,191	1,800	943.2	5.4	1
2021	48,287	15,470	50,533	3,294	1,712	955.6	5.3	1
2020	49,077	15,981	48,320	2,947	1,484	1,015.7	5.9	4
2019	40,679	13,063	42,374	2,691	873	960.0	6.1	3
2018	60,744	19,407	56,635	3,293	1,575	1,072.5	7.8	8

Vessel particulars

IMO number: 9632129
Ship type: Container ship
Gross tonnage: 182,000
Length overall: 399.0 m
Year built: 2014
Flag state: Denmark per EU MRV 2025
Builder: Hanwha Ocean
Port of registry: Ringkobing MRV 2025
Technical efficiency (design): EEXI (6.77 gCO₂/t·nm)
Verifier: AMERICAN BUREAU OF SHIPPING HELLENIC SINGLE MEMBER LIMITED LIABILITY COMPANY (ABS HELLENIC S.M. LTD), Greece
Accreditation: 1083-2
Compliance document issued: 2026-03-28
Compliance document expires: 2027-06-30

Efficiency against its own type2025

Position 130 of 1,838 qualifying container ships by EEOI, at the 7th percentile. The dashed line is the type median, 14.2; this vessel reported 6.6.

EEOI divides emissions by transport work, which for this vessel and year was 8,176,769,697 tonne-miles over 56,982 nautical miles.

Reported CO₂ by year

Reported CO₂ in 2025 was 11.2% lower than in 2018, for EU/EEA voyages only.

From 2024 to 2025, emissions fell 21.9% while distance sailed fell 10.3%and CO₂ per nautical mile fell 12.9%.

Where the 2025 emissions occurred

Methane, nitrous oxide and EU ETS2025

Total CO₂ equivalent: 54,817 t
Methane (CH₄): 0.87 t
Nitrous oxide (N₂O): 3.12 t
Under EU ETS: 30,004 t, 56% of total

Laden voyages2025

CO₂ on laden voyages: 52,956 t, 98% of total
Fuel, laden: 17,001 t
CO₂ per nm, laden: 929.4 kg

The rest of the 2025 total was emitted on ballast legs or at berth.

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) and Wikimedia Commons.

This page draws on 8 MRV reporting years, an efficiency ranking, 5 of 5 vessel particulars and a licensed photograph. Not found in the sources for this vessel: AIS movements in Norwegian waters, a name history, 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.