Ro-ro ship · Malta flag · built 2006

NEPTUNE THELISIS: CO₂ emissions 2018–2025

IMO 9306718 EU ETS8 reporting years

CO₂ reported 2025: 19,051 t
Fuel burned: 6,037 t
Distance: 66,419 nm
Time at sea: 5,264 h
Emitted at berth: 2% of total
Share of year under way: 60%
Gross tonnage: 27,788

NEPTUNE THELISIS against its type

Built in 2006, it is 4 years newer than the median ro-ro ship on this register, which was built in 2002 (281 vessels with a known build year). At 27,788 gross tonnage it is larger than 70% of the other 269 ro-ro ships with a recorded tonnage. It is one of 52 ro-ro ships here under the Malta flag, 16.7% of the 311 on the register. The same builder is recorded for 132 other vessels here, 2 of them ro-ro ships. The returns for 2018–2025 all give Valletta as port of registry.

Its 19,051 t of CO₂ for 2025 is 11% below the median of 21,362 t among the 238 ro-ro ships on this register that reported for 2025. Per nautical mile it emitted 286.8 kg CO₂, 12% below the type median of 327.0 kg. It logged 5,264 hours at sea against a median of 4,872 hours for its type that year. 2.1% of its 2025 emissions were at berth; the median for ro-ro ships was 4.3%. Across 8 years with reported emissions, the highest was 2022 (19,417 t) and the lowest 2021 (11,114 t). Its efficiency percentile within the type went from 88 in 2018 to 86 in 2025 (lower is more efficient). Of the 6 comparable vessels listed below with a 2025 return, 1 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	19,051	6,037	66,419	5,264	394	286.8	171.3	86
2024	18,741	6,005	64,312	5,044	684	291.4	175.4	86
2023	16,321	5,233	57,636	4,892	647	283.2	144.3	77
2022	19,417	6,230	73,830	5,901	516	263.0	143.0	81
2021	11,114	3,525	41,759	3,574	415	266.2	174.0	82
2020	13,287	4,214	48,249	4,294	628	275.4	312.5	100
2019	18,769	6,022	68,059	5,940	594	275.8	296.4	96
2018	12,827	4,115	47,440	4,432	375	270.4	177.4	88

Vessel particulars

IMO number: 9306718
Ship type: Ro-ro ship
Gross tonnage: 27,788
Length overall: 165.0 m
Beam: 26.2 m
Year built: 2006
Flag state: Malta per EU MRV 2025
Builder: Fincantieri
Port of registry: Valletta MRV 2025
Technical efficiency (design): EEXI (18.98 gCO₂/t·nm)
Verifier: DNV, Germany
Accreditation: VS-16026-01
Compliance document issued: 2026-03-01
Compliance document expires: 2027-06-30

Efficiency against its own type2025

Position 165 of 192 qualifying ro-ro ships by EEOI, at the 86th percentile. The dashed line is the type median, 85.3; this vessel reported 171.3.

EEOI divides emissions by transport work, which for this vessel and year was 111,227,464 tonne-miles over 66,419 nautical miles.

Reported CO₂ by year

Reported CO₂ in 2025 was 48.5% higher than in 2018, for EU/EEA voyages only.

From 2024 to 2025, emissions rose 1.7% while distance sailed rose 3.3%and CO₂ per nautical mile fell 1.6%.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: 19,347 t
Methane (CH₄): 0.30 t
Nitrous oxide (N₂O): 1.09 t
Under EU ETS: 11,902 t, 62% of total

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.