TonneMiles

Vehicle carrier · United States flag · built 2006

LIBERTY: CO₂ emissions 2018–2024

IMO 9310109 EU ETS7 reporting years

CO₂ reported 2024
4,037 t
Fuel burned
1,296 t
Distance
11,406 nm
Time at sea
698 h
Share of year under way
8%
Gross tonnage
61,321
LIBERTY
Garitzko, Public domain · File

LIBERTY against its type

Built in 2006, it is 2 years older than the median vehicle carrier on this register, which was built in 2008 (595 vessels with a known build year). At 61,321 gross tonnage it is larger than 70% of the other 571 vehicle carriers with a recorded tonnage. It is one of 23 vehicle carriers here under the United States flag, 3.2% of the 713 on the register. The same builder is recorded for 38 other vessels here, 17 of them vehicle carriers. The returns for 2018–2024 all give Wilmington, DE as port of registry.

Its 4,037 t of CO₂ for 2024 is 52% below the median of 8,474 t among the 465 vehicle carriers on this register that reported for 2024. Per nautical mile it emitted 353.9 kg CO₂, 10% above the type median of 320.4 kg. It logged 698 hours at sea against a median of 1,799 hours for its type that year. 0.0% of its 2024 emissions were at berth; the median for vehicle carriers was 2.2%. Across 7 years with reported emissions, the highest was 2020 (16,235 t) and the lowest 2024 (4,037 t). Its efficiency percentile within the type went from 26 in 2018 to 21 in 2024 (lower is more efficient).

Emissions by year2018–2024

Year CO₂ (t) Fuel (t) Distance (nm) At sea (h) At berth (t) kg CO₂/nm EEOI Percentile
2024 4,037 1,296 11,406 698 0 353.9 41.5 21
2023 8,499 2,689 27,100 2,042 279 313.6 41.9 18
2022 4,590 1,459 17,147 1,490 222 267.7 81.4 82
2021 5,103 1,630 13,358 944 208 382.0 37.9 6
2020 16,235 5,164 48,450 3,451 517 335.1 49.6 33
2019 9,473 3,024 24,898 1,755 399 380.5 44.5 11
2018 9,969 3,177 26,625 1,822 394 374.4 53.1 26

Vessel particulars

IMO number
9310109
Ship type
Vehicle carrier
Gross tonnage
61,321
Length overall
199.0 m
Year built
2006
Flag state
United States per EU MRV 2024
Sources disagree: Wikidata/AIS (undated) list United Kingdom. The flag shown is from the newest official source, the EU MRV return for 2024.
Builder
Mitsubishi Heavy Industries Nagasaki Shipyard & Machinery
Port of registry
WILMINGTON, DE MRV 2024
Technical efficiency (design)
EEXI (13.8 gCO₂/t·nm)
Verifier
DNV, Germany
Accreditation
VS-16026-01
Compliance document issued
2025-03-20
Compliance document expires
2026-06-30

Efficiency against its own type2024

Position 62 of 289 qualifying vehicle carriers by EEOI, at the 21st percentile. The dashed line is the type median, 52.1; this vessel reported 41.5.

0255075100more efficientless efficientThis vessel: 21st percentile, EEOI 41.5

EEOI divides emissions by transport work, which for this vessel and year was 97,349,409 tonne-miles over 11,406 nautical miles.

Reported CO₂ by year

2018: 9,969 t20189,9692019: 9,473 t20192020: 16,235 t20202021: 5,103 t20212022: 4,590 t20222023: 8,499 t20232024: 4,037 t20244,037

Reported CO₂ in 2024 was 59.5% lower than in 2018, for EU/EEA voyages only.

From 2023 to 2024, emissions fell 52.5% while distance sailed fell 57.9%and CO₂ per nautical mile rose 12.9%.That points mainly to how much the vessel sailed, rather than the other.

Where the 2024 emissions occurred

Voyages from an EEA portVoyages from an EEA port: 4,037 t4,037

Methane, nitrous oxide and EU ETS2024

Total CO₂ equivalent
4,101 t
Methane (CH₄)
0.06 t
Nitrous oxide (N₂O)
0.23 t
Under EU ETS
2,019 t, 50% of total

Sources and how to read this

This page draws on 7 MRV reporting years, an efficiency ranking, 5 of 5 vessel particulars and a licensed photograph. Not found in the sources for this vessel: AIS movements in Norwegian waters, 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