Other ship types · Antigua and Barbuda flag · built 2012
SLOMAN DISCOVERER: CO₂ emissions 2018–2025
IMO 9620669 EU ETS7 reporting years
- CO₂ reported 2025
- 4,413 t
- Fuel burned
- 1,400 t
- Time at sea
- 2,001 h
- Emitted at berth
- 4% of total
- Share of year under way
- 23%
- Gross tonnage
- 9,611
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SLOMAN DISCOVERER against its type
Built in 2012, it is 3 years newer than the median vessel in the other ship types category on this register, which was built in 2009 (451 vessels with a known build year). At 9,611 gross tonnage it is smaller than 54% of the other 436 vessels in the other ship types category with a recorded tonnage. It is one of 46 vessels in the other ship types category here under the Antigua and Barbuda flag, 9.2% of the 499 on the register. Sloman Neptun Schiffahrts-Aktiengesellschaft is linked to 8 vessels on this register. Its MRV returns name it SUN DISCOVERER for 2018–2019, SUN DISCOVERER (SLOMAN DISCOVERER) for 2021 and SLOMAN DISCOVERER for 2022–2025. The reported port of registry changed: St. John's (2018–2019), then Saint John's (AG SJO) (2021–2022), then Saint John's (2023), then St. John's (2024–2025).
Its 4,413 t of CO₂ for 2025 is 14% below the median of 5,122 t among the 335 vessels in the other ship types category on this register that reported for 2025. Per nautical mile it emitted 169.9 kg CO₂, 26% below the type median of 231.1 kg. It logged 2,001 hours at sea against a median of 2,231 hours for its type that year. 4.1% of its 2025 emissions were at berth; the median for vessels in the other ship types category was 3.9%. Across 7 years with reported emissions, the highest was 2018 (11,695 t) and the lowest 2021 (2,272 t). Its efficiency percentile within the type went from 92 in 2022 to 96 in 2024 (lower is more efficient). Of the 7 comparable vessels listed below with a 2025 return, 2 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 | 4,413 | 1,400 | — | 2,001 | 180 | 169.9 | — | — |
| 2024 | 8,043 | 2,549 | 44,732 | 3,695 | 377 | 179.8 | 187.9 | 96 |
| 2023 | 6,418 | 2,038 | — | 2,996 | 187 | 169.5 | — | — |
| 2022 | 3,905 | 1,251 | 23,319 | 1,754 | 60 | 167.4 | 63.5 | 92 |
| 2021 | 2,272 | 727 | — | 1,724 | 38 | 183.4 | — | — |
| 2019 | 11,422 | 3,640 | — | 4,652 | 415 | 211.6 | — | — |
| 2018 | 11,695 | 3,726 | — | 5,157 | 315 | 207.8 | — | — |
Vessel particulars
- IMO number
- 9620669
- Previously reported as
- SUN DISCOVERER, SUN DISCOVERER (SLOMAN DISCOVERER)
- Ship type
- Other ship types
- Gross tonnage
- 9,611
- Length overall
- 138.0 m
- Year built
- 2012
- Flag state
- Antigua and Barbuda per EU MRV 2025
- Port of registry
- St. John's MRV 2025
- Ice class
- IA
- Technical efficiency (design)
- EEXI (8.83 gCO₂/t·nm)
- Verifier
- Swiss Climate EcoCare GmbH, Germany
- Accreditation
- D-VS-20810-01
- Compliance document issued
- 2026-01-27
- Compliance document expires
- 2027-06-30
Efficiency against its own type2024
Position 148 of 155 qualifying other ship typess by EEOI, at the 96th percentile. The dashed line is the type median, 38.0; this vessel reported 187.9.
Across the 8 ranked vessels operated by Sloman Neptun Schiffahrts-Aktiengesellschaft, the median percentile is 87. This vessel is less efficient than its own fleet median.
EEOI divides emissions by transport work, which for this vessel and year was 42,792,604 tonne-miles over 44,732 nautical miles.
Reported CO₂ by year
Reported CO₂ in 2025 was 62.3% lower than in 2018, for EU/EEA voyages only. No return is recorded for 2020, so the series has gaps.
From 2024 to 2025, emissions fell 45.1% and CO₂ per nautical mile fell 5.5%.Distance is missing for at least one of the two years, so activity and efficiency cannot be separated here.
Where the 2025 emissions occurred
Methane, nitrous oxide and EU ETS2025
- Total CO₂ equivalent
- 4,481 t
- Methane (CH₄)
- 0.07 t
- Nitrous oxide (N₂O)
- 0.25 t
- Under EU ETS
- 2,801 t, 63% 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 7 MRV reporting years, an efficiency ranking, 4 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.