Container ship · Denmark flag · built 2007
MAERSK BROWNSVILLE: CO₂ emissions 2018–2025
IMO 9313955 EU ETS8 reporting years
- CO₂ reported 2025
- 27,914 t
- Fuel burned
- 8,924 t
- Distance
- 46,801 nm
- Time at sea
- 3,671 h
- Emitted at berth
- 0% of total
- Share of year under way
- 42%
- Gross tonnage
- 48,788
MAERSK BROWNSVILLE against its type
Built in 2007, it is 1 year older than the median container ship on this register, which was built in 2008 (3,088 vessels with a known build year). At 48,788 gross tonnage it is larger than 51% of the other 3,000 container ships with a recorded tonnage. It is one of 119 container ships here under the Denmark flag, 3.4% of the 3,495 on the register. The same builder is recorded for 35 other vessels here, 26 of them container ships. Its MRV returns name it SEAGO PIRAEUS for 2018–2021 and MAERSK BROWNSVILLE for 2022–2025. The reported port of registry changed: Copenhagen (2018), then Kobenhavn (2019–2025).
Its 27,914 t of CO₂ for 2025 is 1.7 times the median of 16,359 t among the 2,234 container ships on this register that reported for 2025. Per nautical mile it emitted 596.5 kg CO₂, close to the type median of 545.6 kg. It logged 3,671 hours at sea against a median of 3,155 hours for its type that year. 0.3% of its 2025 emissions were at berth; the median for container ships was 3.2%. Across 8 years with reported emissions, the highest was 2018 (49,950 t) and the lowest 2022 (12,435 t). Its efficiency percentile within the type went from 55 in 2018 to 68 in 2025 (lower is more efficient). Of the 7 sister ships listed below with a 2025 return, 7 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 | 27,914 | 8,924 | 46,801 | 3,671 | 88 | 596.5 | 19.4 | 68 |
| 2024 | 22,229 | 7,221 | 41,779 | 3,109 | 656 | 532.1 | 20.7 | 68 |
| 2023 | 22,239 | 7,140 | 48,099 | 4,025 | 556 | 462.4 | 20.6 | 60 |
| 2022 | 12,435 | 3,896 | 19,583 | 1,400 | 330 | 635.0 | 32.5 | 81 |
| 2021 | 17,005 | 5,459 | 27,198 | 2,444 | 372 | 625.2 | 31.9 | 81 |
| 2020 | 45,800 | 15,267 | 81,011 | 5,658 | 1,168 | 565.4 | 18.0 | 58 |
| 2019 | 45,661 | 14,655 | 76,675 | 5,402 | 1,080 | 595.5 | 38.2 | 86 |
| 2018 | 49,950 | 15,995 | 88,393 | 5,497 | 1,212 | 565.1 | 20.3 | 55 |
Vessel particulars
- IMO number
- 9313955
- Previously reported as
- SEAGO PIRAEUS
- Ship type
- Container ship
- Gross tonnage
- 48,788
- Length overall
- 294.1 m
- Year built
- 2007
- Flag state
- Denmark per EU MRV 2025
- Builder
- Volkswerft
- Port of registry
- Kobenhavn MRV 2025
- Home port
- Kobenhavn
- Technical efficiency (design)
- EEXI (13.3 gCO₂/t·nm)
- Verifier
- AMERICAN BUREAU OF SHIPPING HELLENIC SINGLE MEMBER LIMITED LIABILITY COMPANY (ABS HELLENIC S.M. LTD), Greece
- Accreditation
- 1083-2
- Compliance document issued
- 2026-03-18
- Compliance document expires
- 2027-06-30
Efficiency against its own type2025
Position 1,243 of 1,838 qualifying container ships by EEOI, at the 68th percentile. The dashed line is the type median, 14.2; this vessel reported 19.4.
EEOI divides emissions by transport work, which for this vessel and year was 1,439,624,033 tonne-miles over 46,801 nautical miles.
Reported CO₂ by year
Reported CO₂ in 2025 was 44.1% lower than in 2018, for EU/EEA voyages only.
From 2024 to 2025, emissions rose 25.6% while distance sailed rose 12.0%and CO₂ per nautical mile rose 12.1%.
Where the 2025 emissions occurred
Methane, nitrous oxide and EU ETS2025
- Total CO₂ equivalent
- 28,352 t
- Methane (CH₄)
- 0.45 t
- Nitrous oxide (N₂O)
- 1.61 t
- Under EU ETS
- 14,001 t, 50% of total
Laden voyages2025
- CO₂ on laden voyages
- 27,826 t, 100% of total
- Fuel, laden
- 8,896 t
- CO₂ per nm, laden
- 594.6 kg
The rest of the 2025 total was emitted on ballast legs or at berth.
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, 5 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.