General cargo ship · Portugal flag · built 2011

BLU TIDE: CO₂ emissions 2018–2025

IMO 9576739 EU ETS8 reporting years

CO₂ reported 2025: 4,241 t
Fuel burned: 1,338 t
Distance: 16,074 nm
Time at sea: 1,671 h
Emitted at berth: 11% of total
Share of year under way: 19%

BLU TIDE against its type

Built in 2011, it is 4 years newer than the median general cargo ship on this register, which was built in 2007 (2,852 vessels with a known build year). It is one of 187 general cargo ships here under the Portugal flag, 6.1% of the 3,081 on the register. The same builder is recorded for 983 other vessels here, 22 of them general cargo ships. Its MRV returns name it BLU TIDE for 2018–2020 and ECO TIDE for 2021–2025. The reported port of registry changed: Panama (2018–2020), then Madeira (2021–2025).

Its 4,241 t of CO₂ for 2025 is 1.5 times the median of 2,820 t among the 2,469 general cargo ships on this register that reported for 2025. Per nautical mile it emitted 263.9 kg CO₂, 2.2 times the type median of 122.2 kg. It logged 1,671 hours at sea against a median of 3,044 hours for its type that year. 10.7% of its 2025 emissions were at berth; the median for general cargo ships was 4.3%. Across 8 years with reported emissions, the highest was 2023 (8,059 t) and the lowest 2025 (4,241 t). Its efficiency percentile within the type went from 80 in 2018 to 7 in 2025 (lower is more efficient). Of the 3 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	4,241	1,338	16,074	1,671	452	263.9	12.6	7
2024	5,056	1,617	20,947	1,701	264	241.4	11.4	14
2023	8,059	2,580	31,422	3,558	421	256.5	16.5	34
2022	4,369	1,397	17,066	1,568	212	256.0	12.9	85
2021	4,371	1,397	18,154	1,492	149	240.8	11.0	77
2020	5,512	1,758	22,067	1,702	151	249.8	11.0	79
2019	5,722	1,826	20,787	2,389	122	275.3	11.1	78
2018	6,719	2,146	25,774	2,410	384	260.7	11.3	80

Vessel particulars

IMO number: 9576739
Previously reported as: ECO TIDE
Ship type: General cargo ship
Year built: 2011
Flag state: Portugal per EU MRV 2025
Builder: HD Hyundai Mipo
Port of registry: Madeira MRV 2025
Home port: Madeira
Technical efficiency (design): EIV (7.87 gCO₂/t·nm)
Verifier: RINA Services Spa, Italy
Accreditation: 002O
Compliance document issued: 2026-02-23
Compliance document expires: 2027-06-30

Efficiency against its own type2025

Position 33 of 479 qualifying general cargo ships by EEOI, at the 7th percentile. The dashed line is the type median, 29.4; this vessel reported 12.6.

EEOI divides emissions by transport work, which for this vessel and year was 336,067,353 tonne-miles over 16,074 nautical miles.

Reported CO₂ by year

Reported CO₂ in 2025 was 36.9% lower than in 2018, for EU/EEA voyages only.

From 2024 to 2025, emissions fell 16.1% while distance sailed fell 23.3%and CO₂ per nautical mile rose 9.3%.That points mainly to how much the vessel sailed, rather than the other.

Where the 2025 emissions occurred

Methane, nitrous oxide and EU ETS2025

Total CO₂ equivalent: 4,307 t
Methane (CH₄): 0.07 t
Nitrous oxide (N₂O): 0.24 t
Under EU ETS: 2,504 t, 59% of total

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).

This page draws on 8 MRV reporting years, an efficiency ranking, 3 of 5 vessel particulars and a name history. Not found in the sources for this vessel: AIS movements in Norwegian waters, 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.