Bulk carrier · Panama flag · built 2015
IYO SEA: CO₂ emissions 2018–2025
IMO 9722455 MMSI 374275000EU ETS5 reporting years
- CO₂ reported 2025
- 4,133 t
- Fuel burned
- 1,319 t
- Distance
- 21,047 nm
- Time at sea
- 1,882 h
- Emitted at berth
- 2% of total
- Share of year under way
- 21%
- Gross tonnage
- 23,432
IYO SEA against its type
Built in 2015, it is 3 years newer than the median bulk carrier on this register, which was built in 2012 (6,882 vessels with a known build year). At 23,432 gross tonnage it is smaller than 81% of the other 6,571 bulk carriers with a recorded tonnage. It is one of 1,601 bulk carriers here under the Panama flag, 19.7% of the 8,138 on the register. The same builder is recorded for 323 other vessels here, 238 of them bulk carriers. Its MRV returns name it IYO SEA for 2018–2024 and NAVI SKY for 2025. The returns for 2018–2025 all give PANAMA as port of registry.
Its 4,133 t of CO₂ for 2025 is 28% above the median of 3,239 t among the 3,731 bulk carriers on this register that reported for 2025. Per nautical mile it emitted 196.4 kg CO₂, 25% below the type median of 260.7 kg. It logged 1,882 hours at sea against a median of 1,200 hours for its type that year. 2.4% of its 2025 emissions were at berth; the median for bulk carriers was 3.7%. Across 5 years with reported emissions, the highest was 2025 (4,133 t) and the lowest 2018 (1,218 t). Its efficiency percentile within the type went from 74 in 2018 to 80 in 2025 (lower is more efficient). Of the 5 sister ships listed below with a 2025 return, 3 reported a lower CO₂ per nautical mile than this vessel.
Emissions by year2018–2025
| Year | CO₂ (t) | Fuel (t) | Distance (nm) | At sea (h) | At berth (t) | kg CO₂/nm | EEOI | Percentile |
|---|---|---|---|---|---|---|---|---|
| 2025 | 4,133 | 1,319 | 21,047 | 1,882 | 99 | 196.4 | 10.4 | 80 |
| 2024 | 2,313 | 738 | — | 1,098 | 0 | 192.8 | — | — |
| 2023 | 1,885 | 597 | 9,233 | 894 | 210 | 204.2 | 7.9 | 49 |
| 2021 | 1,816 | 572 | 8,319 | 600 | 21 | 218.3 | 7.3 | 35 |
| 2018 | 1,218 | 388 | 5,031 | 386 | 74 | 242.1 | 10.4 | 74 |
Vessel particulars
- IMO number
- 9722455
- Previously reported as
- NAVI SKY
- MMSI
- 374275000
- Ship type
- Bulk carrier
- Gross tonnage
- 23,432
- Length overall
- 179.9 m
- Beam
- 29.8 m
- Year built
- 2015
- Flag state
- Panama per EU MRV 2025
- Builder
- Imabari Shipbuilding
- Port of registry
- Panama MRV 2025
- Home port
- Panama
- Technical efficiency (design)
- EEXI (5.06 gCO₂/t·nm)
- Verifier
- NORMEC VERIFAVIA SAS, France
- Accreditation
- 3-2127
- Compliance document issued
- 2026-03-26
- Compliance document expires
- 2027-06-30
Efficiency against its own type2025
Position 2,596 of 3,241 qualifying bulk carriers by EEOI, at the 80th percentile. The dashed line is the type median, 7.6; this vessel reported 10.4.
EEOI divides emissions by transport work, which for this vessel and year was 396,283,797 tonne-miles over 21,047 nautical miles.
Reported CO₂ by year
Reported CO₂ in 2025 was 239.4% higher than in 2018, for EU/EEA voyages only. No return is recorded for 2019, 2020, 2022, so the series has gaps.
From 2024 to 2025, emissions rose 78.7% and CO₂ per nautical mile rose 1.9%.Distance is missing for at least one of the two years, so activity and efficiency cannot be separated here.
Where the 2025 emissions occurred
Methane, nitrous oxide and EU ETS2025
- Total CO₂ equivalent
- 4,198 t
- Methane (CH₄)
- 0.07 t
- Nitrous oxide (N₂O)
- 0.24 t
- Under EU ETS
- 2,184 t, 53% of total
Observed movementsAIS · Norwegian waters
- First seen
- 19 Jul 2025
- Last seen
- 19 Jul 2025
- Days observed
- 1
- Positions
- 63
- Median speed
- 11.5 kn
Its recorded positions span 58.0°N to 58.7°N and 4.5°E to 5.9°E.
10 hourly points from 63 positions. Filled circle first, open circle last; squares are ports for orientation, not calls.
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.
Verifier history
| From reporting year | Verifier | Accredited in |
|---|---|---|
| 2018 | Nippon Kaiji Kyokai | Japan |
| 2025 | NORMEC VERIFAVIA SAS | France |
A change of verifier is not in itself a sign of anything being wrong.
Sources and how to read this
- Emissions: EU MRV publication (THETIS-MRV), reporting years 2018–2025, published by the European Commission.
- Vessel particulars: Wikidata (CC0).
- Movements: Norwegian Coastal Administration open AIS extract.
This page draws on 5 MRV reporting years, an efficiency ranking, 5 of 5 vessel particulars, AIS movements in Norwegian waters and a name history. Not found in the sources for this vessel: a licensed photograph, 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.