Navalyze · Bulk carrier · Ship
GENIUS STAR XI
- IMO
- 9622710
- Type
- Bulk carrier
- Average cargo carried
- 317 t
- Port of registry
- Panama
- Technical efficiency
- EIV 11.35 g CO₂/t·nm
ISM company (DoC holder) in 2025: Wisdom Marine International Inc. · part of Wisdom Marine
2023 at a glance
From the 2023 THETIS-MRV report. Carries about 317 t of cargo on average.
Within the bulk carrier fleet, 2022
Set against all 3,968 bulk carrier ships with a full-year 2022 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, 2023
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 ports0%
- From the EU43%
- Into the EU56%
- At berth in the EU1%
Over the years
Full-year reports only. The Bulk carrier median is the middle ship of all bulk carrier ships reporting that year; it moves with the fleet, so a ship can gain on it without changing itself.
Fuel per mile, kg/nm
- GENIUS STAR XI
- Bulk carrier median
Average speed, kn
- GENIUS STAR XI
- Bulk carrier median
CO₂ per transport work (cargo), g CO₂/t·nm
- GENIUS STAR XI
- Bulk carrier median
Year on year
| Year | Speed | Fuel per mile | Fuel per day | Distance | CO₂ per TW | Reading |
|---|---|---|---|---|---|---|
| 2022→2023 | +4.7 kn | −13% | +38% | −36% | – | 4.7 kn faster, fuel per mile down 13%; better than speed alone explains (hull, engine or trade). |
| 2021→2022 | −3.5 kn | −3% | −32% | −10% | +6% | 3.5 kn slower, fuel per mile down 3%; worse than speed alone explains (fouling, weather, loading or trade). |
Part-year reports are left out of these comparisons. 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 |
|---|---|---|---|---|---|---|---|---|---|
| 2025part-year | Wisdom Marine International Inc. | 280 | 874 | 5,455 | 560 | 9.7 | 51.3 | 59.68 | – |
| 2023 | not published | 365 | 1,153 | 7,806 | 618 | 12.6 | 46.8 | 465.71 | – |
| 2022 | not published | 661 | 2,088 | 12,275 | 1,546 | 7.9 | 53.9 | 18.10 | – |
| 2021 | not published | 761 | 2,401 | 13,652 | 1,199 | 11.4 | 55.7 | 17.03 | – |
Benchmark and verification
| Year | ISM company | CO₂ per TW, g CO₂/t·nm | Bulk carrier median | vs Bulk carrier | Rank | Verifier | Methods |
|---|---|---|---|---|---|---|---|
| 2025part-year | Wisdom Marine International Inc. | – | – | – | – | ClassNK | A |
| 2023 | not published | – | – | – | – | ClassNK | A |
| 2022 | not published | 18.10 | 8.71 | +108% | 3,639 of 3,968 | ClassNK | A |
| 2021 | not published | 17.03 | 8.57 | +99% | 3,199 of 3,466 | ClassNK | A |
Fuel per mile and CO₂ per tonne-mile are the ship's own reported KPIs. Bulk carrier 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 bulk carrier 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.