Oil tanker · Bahamas flag · built 2003
BLUE LAGOON I: CO₂ emissions 2018–2023
IMO 9248447 6 reporting years
- CO₂ reported 2023
- 1,479 t
- Fuel burned
- 462 t
- Time at sea
- 241 h
- Emitted at berth
- 6% of total
- Share of year under way
- 3%
- Gross tonnage
- 81,141
BLUE LAGOON I against its type
Built in 2003, it is 7 years older than the median oil tanker on this register, which was built in 2010 (2,896 vessels with a known build year). At 81,141 gross tonnage it is larger than 72% of the other 2,841 oil tankers with a recorded tonnage. It is one of 180 oil tankers here under the Bahamas flag, 5.1% of the 3,548 on the register. The same builder is recorded for 563 other vessels here, 217 of them oil tankers. Its MRV returns name it GRENA KNUTSEN for 2018–2022 and BLUE LAGOON I for 2023.
Its 1,479 t of CO₂ for 2023 is 80% below the median of 7,491 t among the 1,850 oil tankers on this register that reported for 2023. Per nautical mile it emitted 711.4 kg CO₂, 1.7 times the type median of 408.5 kg. It logged 241 hours at sea against a median of 1,807 hours for its type that year. 5.8% of its 2023 emissions were at berth; the median for oil tankers was 8.4%. Across 6 years with reported emissions, the highest was 2020 (34,372 t) and the lowest 2023 (1,479 t). Its efficiency percentile within the type went from 92 in 2018 to 94 in 2022 (lower is more efficient). The one sister ship listed below with a 2023 return reported a lower CO₂ per nautical mile.
Emissions by year2018–2023
| Year | CO₂ (t) | Fuel (t) | Distance (nm) | At sea (h) | At berth (t) | kg CO₂/nm | EEOI | Percentile |
|---|---|---|---|---|---|---|---|---|
| 2023 | 1,479 | 462 | — | 241 | 85 | 711.4 | — | — |
| 2022 | 28,777 | 9,037 | 31,780 | 3,854 | 2,964 | 905.5 | 22.5 | 94 |
| 2021 | 25,363 | 7,960 | 30,162 | 4,062 | 2,905 | 840.9 | 21.1 | 92 |
| 2020 | 34,372 | 10,807 | 40,742 | 4,930 | 4,321 | 843.7 | 17.1 | 84 |
| 2019 | 30,975 | 9,662 | 40,031 | 6,591 | 7,006 | 773.8 | 17.8 | 87 |
| 2018 | 33,064 | 10,455 | 35,915 | 6,485 | 8,509 | 920.6 | 21.8 | 92 |
Vessel particulars
- IMO number
- 9248447
- Previously reported as
- GRENA KNUTSEN
- Ship type
- Oil tanker
- Gross tonnage
- 81,141
- Length overall
- 278.0 m
- Year built
- 2003
- Flag state
- Bahamas Wikidata/AIS, undated
- Builder
- Samsung Heavy Industries
- Technical efficiency (design)
- EEXI (2.28 gCO₂/t·nm)
- Verifier
- ICS Verification Services Single Member P.C., Greece
- Accreditation
- 1101-3
- Compliance document issued
- 2024-07-08
- Compliance document expires
- 2025-06-30
Efficiency against its own type2022
Position 1,664 of 1,771 qualifying oil tankers by EEOI, at the 94th percentile. The dashed line is the type median, 8.0; this vessel reported 22.5.
EEOI divides emissions by transport work, which for this vessel and year was 1,281,245,325 tonne-miles over 31,780 nautical miles.
Reported CO₂ by year
Reported CO₂ in 2023 was 95.5% lower than in 2018, for EU/EEA voyages only.
From 2022 to 2023, emissions fell 94.9% and CO₂ per nautical mile fell 21.4%.Distance is missing for at least one of the two years, so activity and efficiency cannot be separated here.
Where the 2023 emissions occurred
Verifier history
| From reporting year | Verifier | Accredited in |
|---|---|---|
| 2018 | Lloyd's Register Quality Assurance Ltd | United Kingdom |
| 2020 | HELLENIC LLOYD'S S.A. | Greece |
| 2023 | ICS Verification Services Single Member P.C. | Greece |
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 2018–2023, published by the European Commission.
- Vessel particulars: Wikidata (CC0).
This page draws on 6 MRV reporting years, an efficiency ranking, 5 of 5 vessel particulars and a name history. Not found in the sources for this vessel: AIS movements in Norwegian waters, 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.