Ship Emissions Register

Other ship types (Offshore) · Norway flag · built 2012

OLYMPIC ENERGY

IMO 9603829 MMSI 257626000EU ETS

CO₂ reported 2025
4,907 t
Fuel burned
1,651 t
Time at sea
4,979 h
Emitted at berth
2% of total
Share of year under way
57%
Gross tonnage
5,197
OLYMPIC ENERGY
Cavernia, CC BY-SA 4.0 · File

Vessel particulars

IMO number
9603829
MMSI
257626000
Call sign
3YWS
Ship type
Other ship types (Offshore)
Gross tonnage
5,197
Length overall
94.0 m
Beam
20.0 m
Year built
2012
Flag state
Norway
Port of registry
FOSNAVÅG
Verifier
DNV, Germany
Accreditation
VS-16026-01
Compliance document issued
2026-05-19
Compliance document expires
2027-06-30

Flag state is derived from rapportert, not reported directly, and reflects the registry at the time of reporting.

Annual returns2025–2025

Year CO₂ (t) Fuel (t) Distance (nm) At sea (h) At berth (t) kg CO₂/nm EEOI Percentile
2025 4,907 1,651 4,979 118 227.1

Where the 2025 emissions occurred

At berthAt berth: 118 t118Within EEA portsWithin EEA ports: 118 t118Voyages between EEA portsVoyages between EEA ports: 4,789 t4,789

Methane, nitrous oxide and EU ETS2025

Total CO₂ equivalent
5,593 t
Methane (CH₄)
22.20 t
Nitrous oxide (N₂O)
0.24 t
Under EU ETS
4,907 t, 100% of total

Observed movementsAIS · Norwegian waters

First seen
01 Jul 2025
Last seen
02 Jul 2026
Days observed
234
Positions
15,968
Median speed
9.7 kn
58.5059.0059.505.005.50KarstoEspevaerHaugesundLeirvikMosterhamnSkudeneshavnTanangerFirst observed positionLast observed position50 nm°N°E

400 points sampled hourly from 15,968 recorded positions. The filled circle is the first observed position, the open one the last. Named squares are ports, shown for orientation; they are not recorded calls.

Positions recorded per month

Jul 25: 1,165 positionsJul 251,165Aug 25: 1,031 positionsAug 25Sep 25: 1,097 positionsSep 25Oct 25: 961 positionsOct 25Nov 25: 1,292 positionsNov 25Dec 25: 1,255 positionsDec 25Jan 26: 1,502 positionsJan 26Feb 26: 1,528 positionsFeb 26Mar 26: 1,515 positionsMar 26Apr 26: 1,529 positionsApr 26May 26: 1,635 positionsMay 26Jun 26: 1,404 positionsJun 26Jul 26: 54 positionsJul 2654

Norwegian waters only, 01 Jul 2025 to 27 Jul 2026. A gap here means the vessel was not recorded in that area. It is not evidence that the vessel was idle, and not evidence that a transponder was switched off. Voyages elsewhere are outside this dataset.

Sources and how to read this

What this page is built on

Reporting years
1
Ranked by efficiency
no
Vessel particulars
4 of 5
Movement data
yes
Name history
none recorded
Photograph
yes
Sanctions record
none
Inspection record
none in US waters
Caveats that apply to every vessel page

EEOI above 100,000 is withheld. Those values come from returns where reported transport work is near zero, which makes the ratio meaningless rather than extreme. Median across the dataset is around 12.

Emission categories overlap. In the MRV return, emissions at berth are also counted inside the voyage legs, so the categories do not sum to the total. They are shown side by side rather than stacked for that reason.

Distance is derived, intensity is reported. The MRV return publishes CO₂ per nautical mile but not the distance itself, which is null in all 106,564 rows of the source. The distance column is therefore filled from the ranking step, which reconstructs it, and is blank for years where a vessel was not ranked. That is why a row can show an intensity without a distance.

Percentile is within type and year. It is the vessel's position among qualifying ships of the same type that year, where lower is more efficient. A blank means the vessel did not qualify for ranking that year.

Sister ships share a builder, a type and a build year within two years of this vessel. That holds hull and machinery roughly constant and leaves operation as the variable, which is why they are listed before nearest-by-tonnage.

Methane and nitrous oxide start in 2024. They were not reported before that period, so earlier years cannot be compared against them.

Technical efficiency is a design figure fixed at construction. A vessel can hold a good index and still emit heavily by sailing fast, waiting at anchor or carrying little.

Inspection records cover United States waters only. An empty record is not evidence of a clean history elsewhere.

Empty means unreported, never zero. Nothing here is modelled, estimated or interpolated. See the methodology.

Something wrong on this page? See corrections. We do not hold the source registers and cannot amend them, but we will fix anything we have got wrong in reproducing them.

Comparable vesselsnearest by tonnage, same type