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SEA1 RUBY

IMO
9413444
Type
Other ship types (Offshore)
Port of registry
Kristiansand

ISM company (DoC holder) in 2025: SEA1 OFFSHORE AS

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2025 at a glance

From the 2025 THETIS-MRV report.

Fuel per mile
133.4 kg/nm
CO₂ per transport work (cargo)
–
g CO₂/t·nm
Average speed
8.6 kn
Fuel per day at sea
27.4 t/day
1.14 t/h as reported
Fuel consumed
3,751 t
CO₂ emitted
12,027 t
12,211 t CO₂eq incl. CH₄ and N₂O
Distance sailed
28,110 nm
CO₂ ÷ CO₂ per mile
Time at sea
3,280 h
137 days, 37% of the year

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 ports57%
  • From the EU18%
  • Into the EU22%
  • At berth in the EU3%

80% of this ship's CO₂ falls under the EU ETS (9,576 t).

Fuel burned laden
–
Not reported
CO₂ at berth
2.6%
Alongside in EU ports
Methane (CH₄)
0.2 t
Mainly from LNG; small for oil
CO₂eq ÷ CO₂
1.015
Uplift from CH₄ and N₂O, counted in full from 2026

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

YearISM companyFuel tCO₂ tDistance nmAt sea hSpeed knFuel kg/nmCO₂ g/t·nmLaden fuel
2025SEA1 OFFSHORE AS3,75112,02728,1103,2808.6133.4––

Benchmark and verification

YearISM companyCO₂ per TW, g CO₂/t·nmOffshore medianvs OffshoreRankVerifierMethods
2025SEA1 OFFSHORE AS––––DNVB

Fuel per mile and CO₂ per tonne-mile are the ship's own reported KPIs. Offshore 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 offshore 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.

SEA1 RUBY (IMO 9413444): fuel, emissions and EU ETS 2025–2025 | Navalyze