TonneMiles

Vehicle carrier · Japan flag · built 2009

DIONYSOS LEADER: CO₂ emissions 2018–2025

IMO 9426350 EU ETS8 reporting years

CO₂ reported 2025
1,371 t
Fuel burned
431 t
Time at sea
279 h
Emitted at berth
6% of total
Share of year under way
3%
Gross tonnage
62,993

DIONYSOS LEADER against its type

Built in 2009, it is 1 year newer than the median vehicle carrier on this register, which was built in 2008 (595 vessels with a known build year). At 62,993 gross tonnage it is larger than 76% of the other 571 vehicle carriers with a recorded tonnage. It is one of 66 vehicle carriers here under the Japan flag, 9.3% of the 713 on the register. The same builder is recorded for 102 other vessels here, 50 of them vehicle carriers. The returns for 2018–2025 all give TOKYO as port of registry.

Its 1,371 t of CO₂ for 2025 is 81% below the median of 7,074 t among the 514 vehicle carriers on this register that reported for 2025. Per nautical mile it emitted 337.8 kg CO₂, close to the type median of 309.1 kg. It logged 279 hours at sea against a median of 1,639 hours for its type that year. 5.6% of its 2025 emissions were at berth; the median for vehicle carriers was 3.1%. Across 8 years with reported emissions, the highest was 2022 (11,282 t) and the lowest 2025 (1,371 t). Its efficiency percentile within the type went from 61 in 2018 to 25 in 2022 (lower is more efficient). Of the 5 sister ships listed below with a 2025 return, 5 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 1,371 431 — 279 77 337.8 85.3 not ranked
2024 3,934 1,262 — 754 0 323.4 — —
2023 4,349 1,378 — 1,055 78 273.8 152.5 not ranked
2022 11,282 3,570 34,124 2,138 548 330.6 45.5 25
2021 6,672 2,111 21,280 1,490 156 313.5 62.3 58
2020 3,814 1,207 12,894 869 110 295.8 61.5 59
2019 2,933 937 8,997 574 135 326.0 54.3 41
2018 5,670 1,816 15,139 899 223 374.5 67.5 61

Vessel particulars

IMO number
9426350
Ship type
Vehicle carrier
Gross tonnage
62,993
Length overall
199.9 m
Beam
32.3 m
Year built
2009
Flag state
Japan per EU MRV 2025
Builder
Shinkurushima Toyohashi Shipbuilding
Port of registry
Tokyo MRV 2025
Technical efficiency (design)
EEXI (14.1 gCO₂/t·nm)
Efficiency ranking
Not ranked: transport work below the floor (2025)
Verifier
Nippon Kaiji Kyokai, Japan
Accreditation
VS-21325-01
Compliance document issued
2026-03-17
Compliance document expires
2027-06-30

Reported CO₂ by year

2018: 5,670 t20185,6702019: 2,933 t20192020: 3,814 t20202021: 6,672 t20212022: 11,282 t20222023: 4,349 t20232024: 3,934 t20242025: 1,371 t20251,371

Reported CO₂ in 2025 was 75.8% lower than in 2018, for EU/EEA voyages only.

From 2024 to 2025, emissions fell 65.1% and CO₂ per nautical mile rose 4.5%.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: 77 t77Within EEA portsWithin EEA ports: 77 t77Voyages between EEA portsVoyages between EEA ports: 128 t128Voyages to an EEA portVoyages to an EEA port: 1,031 t1,031Voyages from an EEA portVoyages from an EEA port: 136 t136

Methane, nitrous oxide and EU ETS2025

Total CO₂ equivalent
1,392 t
Methane (CH₄)
0.02 t
Nitrous oxide (N₂O)
0.08 t
Under EU ETS
757 t, 55% of total

Sources and how to read this

This page draws on 8 MRV reporting years and 5 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