Chemical tanker · Antigua and Barbuda flag · built 2012
SLOMAN HERAKLES: CO₂ emissions 2020–2025
IMO 9466726 EU ETS6 reporting years
- CO₂ reported 2025
- 7,882 t
- Fuel burned
- 2,473 t
- Distance
- 31,120 nm
- Time at sea
- 3,376 h
- Emitted at berth
- 11% of total
- Share of year under way
- 39%
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SLOMAN HERAKLES against its type
Built in 2012, it is 2 years newer than the median chemical tanker on this register, which was built in 2010 (1,951 vessels with a known build year). It is one of 7 chemical tankers here under the Antigua and Barbuda flag, 0.3% of the 2,344 on the register. Sloman Neptun Schiffahrts-Aktiengesellschaft is linked to 8 vessels on this register. Its MRV returns name it SLOMAN HERAKLES for 2020–2021, SLOMAN HERAKLES (SLOMAN HERAKLES) for 2022 and SLOMAN HERAKLES for 2023–2025. The reported port of registry changed: ST. JOHN'S (2020–2021), then Saint John's (AG SJO) (2022), then St. John's (2023–2025).
Its 7,882 t of CO₂ for 2025 is 42% above the median of 5,533 t among the 1,483 chemical tankers on this register that reported for 2025. Per nautical mile it emitted 253.3 kg CO₂, close to the type median of 250.2 kg. It logged 3,376 hours at sea against a median of 2,109 hours for its type that year. 10.7% of its 2025 emissions were at berth; the median for chemical tankers was 6.6%. Across 6 years with reported emissions, the highest was 2022 (8,438 t) and the lowest 2020 (6,054 t). Its efficiency percentile within the type went from 95 in 2020 to 90 in 2025 (lower is more efficient). Of the 7 comparable vessels listed below with a 2025 return, 6 reported a lower CO₂ per nautical mile than this vessel.
Emissions by year2020–2025
| Year | CO₂ (t) | Fuel (t) | Distance (nm) | At sea (h) | At berth (t) | kg CO₂/nm | EEOI | Percentile |
|---|---|---|---|---|---|---|---|---|
| 2025 | 7,882 | 2,473 | 31,120 | 3,376 | 841 | 253.3 | 36.8 | 90 |
| 2024 | 6,827 | 2,140 | 22,406 | 2,371 | 719 | 304.7 | 40.0 | 90 |
| 2023 | 7,219 | 2,266 | 27,139 | 2,838 | 937 | 266.0 | 31.9 | 84 |
| 2022 | 8,438 | 2,645 | 34,971 | 3,409 | 829 | 241.3 | 30.3 | 84 |
| 2021 | 7,947 | 2,486 | 31,353 | 3,565 | 817 | 253.5 | 36.2 | 88 |
| 2020 | 6,054 | 1,895 | 25,768 | 2,801 | 514 | 234.9 | 46.8 | 95 |
Vessel particulars
- IMO number
- 9466726
- Previously reported as
- SLOMAN HERAKLES (SLOMAN HERAKLES)
- Ship type
- Chemical tanker
- Length overall
- 145.2 m
- Year built
- 2012
- Flag state
- Antigua and Barbuda per EU MRV 2025
- Port of registry
- ST. JOHN'S MRV 2025
- Technical efficiency (design)
- EEXI (8.71 gCO₂/t·nm)
- Verifier
- Swiss Climate EcoCare GmbH, Germany
- Accreditation
- D-VS-20810-01
- Compliance document issued
- 2026-03-27
- Compliance document expires
- 2027-06-30
Efficiency against its own type2025
Position 1,210 of 1,348 qualifying chemical tankers by EEOI, at the 90th percentile. The dashed line is the type median, 14.4; this vessel reported 36.8.
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 214,059,478 tonne-miles over 31,120 nautical miles.
Reported CO₂ by year
Reported CO₂ in 2025 was 30.2% higher than in 2020, for EU/EEA voyages only.
From 2024 to 2025, emissions rose 15.4% while distance sailed rose 38.9%and CO₂ per nautical mile fell 16.9%.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
- 8,003 t
- Methane (CH₄)
- 0.12 t
- Nitrous oxide (N₂O)
- 0.45 t
- Under EU ETS
- 5,337 t, 68% of total
Verifier history
| From reporting year | Verifier | Accredited in |
|---|---|---|
| 2020 | Swiss Climate EcoCare GmbH | Germany |
| 2023 | DNV | Germany |
| 2025 | Swiss Climate EcoCare GmbH | 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 2020–2025, published by the European Commission.
- Vessel particulars: Wikidata (CC0) and Wikimedia Commons.
This page draws on 6 MRV reporting years, an efficiency ranking, 3 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.