TonneMiles

LNG carrier · Greece flag · built 2021

MARAN GAS KALYMNOS: CO₂ emissions 2022–2025

IMO 9883742 EU ETS4 reporting years

CO₂ reported 2025
23,378 t
Fuel burned
8,606 t
Time at sea
4,122 h
Emitted at berth
2% of total
Share of year under way
47%

MARAN GAS KALYMNOS against its type

Built in 2021, it is 7 years newer than the median LNG carrier on this register, which was built in 2014 (396 vessels with a known build year). It is one of 41 LNG carriers here under the Greece flag, 7.6% of the 538 on the register. The same builder is recorded for 660 other vessels here, 109 of them LNG carriers. The returns for 2022–2025 all give Piraeus as port of registry.

Its 23,378 t of CO₂ for 2025 is close to the median of 21,516 t among the 351 LNG carriers on this register that reported for 2025. Per nautical mile it emitted 474.4 kg CO₂, 11% below the type median of 533.6 kg. It logged 4,122 hours at sea against a median of 2,940 hours for its type that year. 2.0% of its 2025 emissions were at berth; the median for LNG carriers was 2.0%. Across 4 years with reported emissions, the highest was 2024 (32,076 t) and the lowest 2022 (10,055 t). Of the 7 sister ships listed below with a 2025 return, 2 reported a lower CO₂ per nautical mile than this vessel.

Emissions by year2022–2025

Year CO₂ (t) Fuel (t) Distance (nm) At sea (h) At berth (t) kg CO₂/nm EEOI Percentile
2025 23,378 8,606 — 4,122 468 474.4 — —
2024 32,076 11,786 — 4,951 689 479.3 — —
2023 20,193 6,930 — 3,553 957 595.7 — —
2022 10,055 3,442 — 1,317 376 829.7 — —

Vessel particulars

IMO number
9883742
Ship type
LNG carrier
Year built
2021
Flag state
Greece per EU MRV 2025
Builder
Hanwha Ocean
Port of registry
Piraeus MRV 2025
Technical efficiency (design)
EEDI (4.78 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
2026-03-24
Compliance document expires
2027-06-30

Reported CO₂ by year

2022: 10,055 t202210,0552023: 20,193 t20232024: 32,076 t20242025: 23,378 t202523,378

Reported CO₂ in 2025 was 132.5% higher than in 2022, for EU/EEA voyages only.

From 2024 to 2025, emissions fell 27.1% and CO₂ per nautical mile fell 1.0%.Distance is missing for at least one of the two years, so activity and efficiency cannot be separated here.

Where the 2025 emissions occurred

At berthAt berth: 468 t468Within EEA portsWithin EEA ports: 468 t468Voyages to an EEA portVoyages to an EEA port: 11,162 t11,162Voyages from an EEA portVoyages from an EEA port: 11,747 t11,747Laden voyagesLaden voyages: 22,910 t22,910

Methane, nitrous oxide and EU ETS2025

Total CO₂ equivalent
28,115 t
Methane (CH₄)
160.15 t
Nitrous oxide (N₂O)
0.95 t
Under EU ETS
11,923 t, 51% of total

Laden voyages2025

CO₂ on laden voyages
22,910 t, 98% of total
Fuel, laden
8,436 t
CO₂ per nm, laden
464.9 kg

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

Sources and how to read this

This page draws on 4 MRV reporting years and 3 of 5 vessel particulars. Not found in the sources for this vessel: an efficiency ranking, 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 vesselssister ships and nearest by tonnage