TonneMiles

Other ship types (Offshore) · Cyprus flag · built 2011

REM FORTRESS: CO₂ emissions 2025

IMO 9482342 MMSI 209455000EU ETS

CO₂ reported 2025
2,511 t
Fuel burned
783 t
Time at sea
3,305 h
Emitted at berth
6% of total
Share of year under way
38%
Gross tonnage
4,518
REM FORTRESS
Alan Jamieson from Aberdeen, Scotland, CC BY 2.0 · File

REM FORTRESS against its type

Built in 2011, it is the same age as the median offshore vessel on this register (build year 2011, 410 vessels with a known build year). At 4,518 gross tonnage it is larger than 56% of the other 396 offshore vessels with a recorded tonnage. It is one of 16 offshore vessels here under the Cyprus flag, 3.9% of the 413 on the register. The same builder is recorded for 9 other vessels here, 6 of them offshore vessels. K Line Offshore AS is linked to 3 vessels on this register.

Its 2,511 t of CO₂ for 2025 is 38% below the median of 4,049 t among the 390 offshore vessels on this register that reported for 2025. Per nautical mile it emitted 400.3 kg CO₂, 15% above the type median of 348.3 kg. It logged 3,305 hours at sea against a median of 3,550 hours for its type that year. 6.4% of its 2025 emissions were at berth; the median for offshore vessels was 6.4%. Of the 4 sister ships listed below with a 2025 return, 2 reported a lower CO₂ per nautical mile than this vessel.

Emissions by year2025–2025

Year CO₂ (t) Fuel (t) Distance (nm) At sea (h) At berth (t) kg CO₂/nm EEOI Percentile
2025 2,511 783 — 3,305 160 400.3 — —

Vessel particulars

IMO number
9482342
MMSI
209455000
Ship type
Other ship types (Offshore)
Gross tonnage
4,518
Length overall
94.0 m
Year built
2011
Flag state
Cyprus per EU MRV 2025
Builder
Trosvik Verksted
Port of registry
Limassol MRV 2025
Operator
K Line Offshore AS
Verifier
DNV, Germany
Accreditation
VS-16026-01
Compliance document issued
2026-06-02
Compliance document expires
2027-06-30

Where the 2025 emissions occurred

At berthAt berth: 160 t160Within EEA portsWithin EEA ports: 160 t160Voyages between EEA portsVoyages between EEA ports: 1,745 t1,745Voyages to an EEA portVoyages to an EEA port: 307 t307Voyages from an EEA portVoyages from an EEA port: 299 t299

Methane, nitrous oxide and EU ETS2025

Total CO₂ equivalent
2,549 t
Methane (CH₄)
0.04 t
Nitrous oxide (N₂O)
0.14 t
Under EU ETS
2,208 t, 88% of total

Observed movementsAIS · Norwegian waters

First seen
11 Nov 2025
Last seen
05 Dec 2025
Days observed
25
Positions
682
Median speed
1.4 kn

Its recorded positions span 58.0°N to 58.1°N and 8.0°E to 8.7°E.

58.0558.108.008.25First observed positionLast observed position5 nm°N°E

400 hourly points from 682 positions. Filled circle first, open circle last; squares are ports for orientation, not calls.

Positions recorded per month

Nov 25: 506 positionsNov 25506Dec 25: 176 positionsDec 25176

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

This page draws on 1 MRV reporting year, 5 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.

Comparable vesselssister ships and nearest by tonnage