Chemical tanker · Norway flag · built 2017
BOW HERCULES: CO₂ emissions 2018–2025
IMO 9752046 MMSI 257370000EU ETS8 reporting years
- CO₂ reported 2025
- 13,196 t
- Fuel burned
- 4,214 t
- Distance
- 45,043 nm
- Time at sea
- 3,554 h
- Emitted at berth
- 4% of total
- Share of year under way
- 41%
- Gross tonnage
- 26,364
BOW HERCULES against its type
Built in 2017, it is 7 years newer than the median chemical tanker on this register, which was built in 2010 (1,951 vessels with a known build year). At 26,364 gross tonnage it is larger than 62% of the other 1,899 chemical tankers with a recorded tonnage. It is one of 95 chemical tankers here under the Norway flag, 4.1% of the 2,344 on the register. The same builder is recorded for 118 other vessels here, 7 of them chemical tankers. The returns for 2018–2025 all give Bergen as port of registry.
Its 13,196 t of CO₂ for 2025 is 2.4 times the median of 5,533 t among the 1,483 chemical tankers on this register that reported for 2025. Per nautical mile it emitted 293.0 kg CO₂, 17% above the type median of 250.2 kg. It logged 3,554 hours at sea against a median of 2,109 hours for its type that year. 3.9% of its 2025 emissions were at berth; the median for chemical tankers was 6.6%. Across 8 years with reported emissions, the highest was 2025 (13,196 t) and the lowest 2021 (2,543 t). Its efficiency percentile within the type went from 26 in 2018 to 36 in 2025 (lower is more efficient). Of the 7 sister ships 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 | 13,196 | 4,214 | 45,043 | 3,554 | 514 | 293.0 | 12.0 | 36 |
| 2024 | 10,134 | 3,236 | 32,664 | 2,376 | 608 | 310.2 | 11.8 | 31 |
| 2023 | 10,033 | 3,174 | 33,419 | 2,726 | 794 | 300.2 | 10.6 | 21 |
| 2022 | 4,466 | 1,411 | 13,307 | 1,169 | 580 | 335.6 | 10.3 | 18 |
| 2021 | 2,543 | 802 | 8,922 | 718 | 305 | 285.0 | 10.0 | 14 |
| 2020 | 3,102 | 982 | 11,207 | 906 | 170 | 276.8 | 9.8 | 14 |
| 2019 | 4,780 | 1,528 | 16,243 | 1,305 | 293 | 294.3 | 10.1 | 15 |
| 2018 | 4,545 | 1,449 | 14,183 | 1,378 | 433 | 320.4 | 11.8 | 26 |
Vessel particulars
- IMO number
- 9752046
- MMSI
- 257370000
- Ship type
- Chemical tanker
- Gross tonnage
- 26,364
- Length overall
- 183.0 m
- Beam
- 32.0 m
- Year built
- 2017
- Flag state
- Norway per EU MRV 2025
- Port of registry
- Bergen MRV 2025
- Technical efficiency (design)
- EEXI (5.21 gCO₂/t·nm)
- Verifier
- DNV, Germany
- Accreditation
- VS-16026-01
- Compliance document issued
- 2026-03-23
- Compliance document expires
- 2027-06-30
Efficiency against its own type2025
Position 488 of 1,348 qualifying chemical tankers by EEOI, at the 36th percentile. The dashed line is the type median, 14.4; this vessel reported 12.0.
EEOI divides emissions by transport work, which for this vessel and year was 1,097,811,980 tonne-miles over 45,043 nautical miles.
Reported CO₂ by year
Reported CO₂ in 2025 was 190.3% higher than in 2018, for EU/EEA voyages only.
From 2024 to 2025, emissions rose 30.2% while distance sailed rose 37.9%and CO₂ per nautical mile fell 5.6%.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
- 13,403 t
- Methane (CH₄)
- 0.21 t
- Nitrous oxide (N₂O)
- 0.76 t
- Under EU ETS
- 7,192 t, 55% of total
Observed movementsAIS · Norwegian waters
- First seen
- 23 Aug 2025
- Last seen
- 26 Aug 2025
- Days observed
- 4
- Positions
- 151
- Median speed
- 12.5 kn
Its recorded positions span 58.0°N to 60.9°N and 4.4°E to 5.1°E.
64 hourly points from 151 positions. Filled circle first, open circle last; squares are ports for orientation, not calls.
Norwegian Coastal Administration open AIS, Norwegian waters only, 01 Jul 2025 to 27 Jul 2026. A gap means the vessel was not recorded here, not that it was idle or that a transponder was off.
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).
- Movements: Norwegian Coastal Administration open AIS extract.
This page draws on 8 MRV reporting years, an efficiency ranking, 5 of 5 vessel particulars and AIS movements in Norwegian waters. Not found in the sources for this vessel: 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.