Passenger ship (Cruise Passenger ship) · Bahamas flag · built 2021
SILVER ENDEAVOUR: CO₂ emissions 2023–2025
IMO 9821873 MMSI 311000932EU ETS3 reporting years
- CO₂ reported 2025
- 3,152 t
- Fuel burned
- 983 t
- Time at sea
- 829 h
- Emitted at berth
- 7% of total
- Share of year under way
- 9%
SILVER ENDEAVOUR against its type
Built in 2021, it is 11 years newer than the median cruise ship on this register, which was built in 2010 (195 vessels with a known build year). It is one of 67 cruise ships here under the Bahamas flag, 33.2% of the 202 on the register. The same builder is recorded for 61 other vessels here, one of them a cruise ship. Silversea Cruises is linked to 8 vessels on this register. The returns for 2023–2025 all give Nassau as port of registry.
Its 3,152 t of CO₂ for 2025 is 90% below the median of 31,269 t among the 200 cruise ships on this register that reported for 2025. Per nautical mile it emitted 294.6 kg CO₂, 64% below the type median of 821.3 kg. It logged 829 hours at sea against a median of 3,133 hours for its type that year. 7.4% of its 2025 emissions were at berth; the median for cruise ships was 15.1%. Across 3 years with reported emissions, the highest was 2023 (6,539 t) and the lowest 2025 (3,152 t). Of the 8 comparable vessels listed below with a 2025 return, 0 reported a lower CO₂ per nautical mile than this vessel.
Emissions by year2023–2025
| Year | CO₂ (t) | Fuel (t) | Distance (nm) | At sea (h) | At berth (t) | kg CO₂/nm | EEOI | Percentile |
|---|---|---|---|---|---|---|---|---|
| 2025 | 3,152 | 983 | — | 829 | 234 | 294.6 | — | — |
| 2024 | 4,558 | 1,422 | — | 1,167 | 302 | 305.4 | — | — |
| 2023 | 6,539 | 2,040 | — | 1,217 | 1,573 | 353.1 | — | — |
Vessel particulars
- IMO number
- 9821873
- MMSI
- 311000932
- Call sign
- C6DX3
- Length overall
- 164.0 m
- Beam
- 28.0 m
- Year built
- 2021
- Flag state
- Bahamas per EU MRV 2025
- Builder
- Meyer Wismar
- Port of registry
- Nassau MRV 2025
- Ice class
- IA Super
- Technical efficiency (design)
- EEDI (18.9 gCO₂/t·nm)
- Operator
- Silversea Cruises
- Verifier
- DNV, Germany
- Accreditation
- VS-16026-01
- Compliance document issued
- 2026-04-15
- Compliance document expires
- 2027-06-30
Reported CO₂ by year
Reported CO₂ in 2025 was 51.8% lower than in 2023, for EU/EEA voyages only.
From 2024 to 2025, emissions fell 30.9% and CO₂ per nautical mile fell 3.5%.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
- 3,200 t
- Methane (CH₄)
- 0.05 t
- Nitrous oxide (N₂O)
- 0.18 t
- Under EU ETS
- 1,932 t, 61% of total
Observed movementsAIS · Norwegian waters
- First seen
- 27 May 2026
- Last seen
- 18 Jul 2026
- Days observed
- 8
- Positions
- 622
- Median speed
- 15.7 kn
Its recorded positions span 69.6°N to 71.0°N and 18.9°E to 24.4°E.
89 hourly points from 622 positions. Filled circle first, open circle last; squares are ports for orientation, not calls.
Positions recorded per month
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 2023–2025, published by the European Commission.
- Vessel particulars: Wikidata (CC0) and Wikimedia Commons.
- Movements: Norwegian Coastal Administration open AIS extract.
This page draws on 3 MRV reporting years, 4 of 5 vessel particulars, AIS movements in Norwegian waters and a licensed photograph. Not found in the sources for this vessel: an efficiency ranking, a name history, 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.