Vehicle carrier · Panama flag · built 2009
GEMINI LEADER: CO₂ emissions 2018–2025
IMO 9519121 EU ETS8 reporting years
- CO₂ reported 2025
- 5,501 t
- Fuel burned
- 1,783 t
- Distance
- 17,147 nm
- Time at sea
- 1,125 h
- Emitted at berth
- 2% of total
- Share of year under way
- 13%
- Gross tonnage
- 60,876
GEMINI 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 60,876 gross tonnage it is larger than 68% of the other 571 vehicle carriers with a recorded tonnage. It is one of 177 vehicle carriers here under the Panama flag, 24.8% of the 713 on the register. The same builder is recorded for 323 other vessels here, 27 of them vehicle carriers. Its MRV returns name it TRITON ACE for 2018–2022 and GEMINI LEADER for 2023–2025. The returns for 2018–2025 all give PANAMA as port of registry.
Its 5,501 t of CO₂ for 2025 is 22% below the median of 7,074 t among the 514 vehicle carriers on this register that reported for 2025. Per nautical mile it emitted 320.8 kg CO₂, close to the type median of 309.1 kg. It logged 1,125 hours at sea against a median of 1,639 hours for its type that year. 1.5% of its 2025 emissions were at berth; the median for vehicle carriers was 3.1%. Across 8 years with reported emissions, the highest was 2019 (9,652 t) and the lowest 2021 (1,635 t). Its efficiency percentile within the type went from 59 in 2019 to 25 in 2025 (lower is more efficient). Of the 5 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 | 5,501 | 1,783 | 17,147 | 1,125 | 84 | 320.8 | 41.5 | 25 |
| 2024 | 3,684 | 1,168 | 12,510 | 822 | 4 | 294.5 | 90.5 | 89 |
| 2023 | 3,187 | 1,006 | 8,879 | 628 | 253 | 359.0 | 49.8 | 39 |
| 2022 | 3,030 | 956 | 8,331 | 542 | 140 | 363.7 | 48.9 | 35 |
| 2021 | 1,635 | 515 | — | 325 | 154 | 350.3 | 70.6 | not ranked |
| 2020 | 7,290 | 2,304 | 24,460 | 1,950 | 247 | 298.0 | 45.5 | 22 |
| 2019 | 9,652 | 3,090 | 29,469 | 2,181 | 395 | 327.5 | 62.9 | 59 |
| 2018 | 2,878 | 917 | — | 839 | 96 | 291.8 | 111.2 | not ranked |
Vessel particulars
- IMO number
- 9519121
- Previously reported as
- TRITON ACE
- Ship type
- Vehicle carrier
- Gross tonnage
- 60,876
- Length overall
- 199.0 m
- Year built
- 2009
- Flag state
- Panama per EU MRV 2025
- Builder
- Imabari Shipbuilding
- Port of registry
- Panama MRV 2025
- Technical efficiency (design)
- EEXI (13.6 gCO₂/t·nm)
- Verifier
- DNV, Germany
- Accreditation
- VS-16026-01
- Compliance document issued
- 2026-03-12
- Compliance document expires
- 2027-06-30
Efficiency against its own type2025
Position 106 of 423 qualifying vehicle carriers by EEOI, at the 25th percentile. The dashed line is the type median, 51.7; this vessel reported 41.5.
EEOI divides emissions by transport work, which for this vessel and year was 132,485,067 tonne-miles over 17,147 nautical miles.
Reported CO₂ by year
Reported CO₂ in 2025 was 91.1% higher than in 2018, for EU/EEA voyages only.
From 2024 to 2025, emissions rose 49.3% while distance sailed rose 37.1%and CO₂ per nautical mile rose 8.9%.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
- 5,588 t
- Methane (CH₄)
- 0.09 t
- Nitrous oxide (N₂O)
- 0.32 t
- Under EU ETS
- 2,290 t, 42% of total
Verifier history
| From reporting year | Verifier | Accredited in |
|---|---|---|
| 2018 | AMERICAN BUREAU OF SHIPPING HELLENIC SINGLE MEMBER LIMITED LIABILITY COMPANY (ABS HELLENIC S.M. LTD) | Greece |
| 2019 | DNV | Germany |
A change of verifier is not in itself a sign of anything being wrong.
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, a name history and a licensed photograph. Not found in the sources for this vessel: AIS movements in Norwegian waters, 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.