Navalyze · Gas carrier (LPG) · Ship
HAPPY OSPREY
- IMO
- 9553646
- Type
- Gas carrier
- Average cargo carried
- 2,408 t
- Port of registry
- KØBenhavn
- Technical efficiency
- EEXI 11.20 g CO₂/t·nm
- Former names
- JS GREENSUN
ISM company (DoC holder) in 2025: Navigator Gas Ship Management (Denmark) ApS
2025 at a glance
From the 2025 THETIS-MRV report. Carries about 2,408 t of cargo on average.
Within the gas carrier (LPG) fleet, 2025
Set against all 355 gas carrier (LPG) ships with a full-year 2025 report. Bigger ships burn more per mile but less per tonne of cargo, so read fuel per mile with the ship's size in mind.
Where the emissions happen, 2025
THETIS splits each ship's CO₂ by voyage type. The split sets how much falls under the EU ETS: all of it within the EU and at berth, half of it on voyages into or out of the EU.
- Between EU ports29%
- From the EU41%
- Into the EU28%
- At berth in the EU2%
65% of this ship's CO₂ falls under the EU ETS (3,809 t).
Over the years
Full-year reports only. The Gas carrier (LPG) median is the middle ship of all gas carrier (LPG) ships reporting that year; it moves with the fleet, so a ship can gain on it without changing itself.
Fuel per mile, kg/nm
- HAPPY OSPREY
- Gas carrier (LPG) median
Average speed, kn
- HAPPY OSPREY
- Gas carrier (LPG) median
CO₂ per transport work (cargo), g CO₂/t·nm
- HAPPY OSPREY
- Gas carrier (LPG) median
Year on year
| Year | Speed | Fuel per mile | Fuel per day | Distance | CO₂ per TW | Reading |
|---|---|---|---|---|---|---|
| 2024→2025 | +2.1 kn | −1% | +20% | +95% | – | 2.1 kn faster, fuel per mile flat; better than speed alone explains (hull, engine or trade). |
| 2022→2024 | +3.3 kn | −7% | +41% | +48% | – | 3.3 kn faster, fuel per mile down 7%; better than speed alone explains (hull, engine or trade). |
| 2021→2022 | −3.5 kn | +22% | −21% | −80% | −26% | 3.5 kn slower, fuel per mile up 22%; worse than speed alone explains (fouling, weather, loading or trade). |
| 2020→2021 | +0.4 kn | +2% | +7% | +46% | −87% | 0.4 kn faster, fuel per mile up 2%; better than speed alone explains (hull, engine or trade). |
| 2018→2020 | +0.1 kn | −6% | −6% | +245% | +910% | Same speed, fuel per mile down 6%; better than speed alone explains (hull, engine or trade). |
Fuel per mile rises roughly with the square of speed for a given ship, so a change in speed explains much of a change in fuel per mile.
Every reporting year
One row per THETIS-MRV report. A ship that changed operator during a year has a part-year report for each.
Operation
| Year | ISM company | Fuel t | CO₂ t | Distance nm | At sea h | Speed kn | Fuel kg/nm | CO₂ g/t·nm | Laden fuel |
|---|---|---|---|---|---|---|---|---|---|
| 2025 | Navigator Gas Ship Management (Denmark) ApS | 1,859 | 5,815 | 27,377 | 2,348 | 11.7 | 67.9 | 88.22 | – |
| 2024 | Navigator Gas Ship Management (Denmark) ApS | 961 | 3,029 | 14,055 | 1,464 | 9.6 | 68.4 | 612.10 | – |
| 2022 | not published | 700 | 2,212 | 9,488 | 1,501 | 6.3 | 73.8 | 41.04 | – |
| 2021 | not published | 2,853 | 8,956 | 46,983 | 4,817 | 9.8 | 60.7 | 55.25 | 100% |
| 2020 | not published | 1,913 | 6,120 | 32,245 | 3,442 | 9.4 | 59.3 | 438.64 | – |
| 2018 | not published | 588 | 1,833 | 9,349 | 1,002 | 9.3 | 62.9 | 43.45 | – |
Benchmark and verification
| Year | ISM company | CO₂ per TW, g CO₂/t·nm | Gas carrier (LPG) median | vs Gas carrier (LPG) | Rank | Verifier | Methods |
|---|---|---|---|---|---|---|---|
| 2025 | Navigator Gas Ship Management (Denmark) ApS | 88.22 | 35.56 | +148% | 282 of 355 | Verifavia | B+C |
| 2024 | Navigator Gas Ship Management (Denmark) ApS | – | – | – | – | Verifavia | B+C |
| 2022 | not published | 41.04 | 42.53 | −4% | 173 of 348 | Verifavia | C |
| 2021 | not published | 55.25 | 46.91 | +18% | 190 of 323 | Verifavia | C |
| 2020 | not published | 438.64 | 42.29 | +937% | 339 of 339 | Verifavia | C |
| 2018 | not published | 43.45 | 53.11 | −18% | 131 of 297 | Bureau Veritas | B+C |
Fuel per mile and CO₂ per tonne-mile are the ship's own reported KPIs. Gas carrier (LPG) ships are benchmarked on CO₂ per transport work (cargo) (TW), in g CO₂/t·nm. CO₂eq adds methane and nitrous oxide and is in the public files from 2024. Rank counts from the lowest figure among that year's gas carrier (LPG) ships. Methods: A delivery notes, B tank monitoring, C flow meters, D direct measurement. FuelEU GHG intensity is not shown: it needs fuel types, which the public file does not carry. Operators are named only from 2024, the first year the public files carry them; earlier years belong to the ship, not to any company.