CATHERINE: CO₂ emissions 2018–2025

CATHERINE against its type

Built in 2002, it is the same age as the median ro-ro ship on this register (build year 2002, 281 vessels with a known build year). At 21,369 gross tonnage it is larger than 51% of the other 269 ro-ro ships with a recorded tonnage. It is one of 52 ro-ro ships here under the Malta flag, 16.7% of the 311 on the register. The same builder is recorded for 204 other vessels here. The returns for 2018–2025 all give Valletta as port of registry.

Its 17,487 t of CO₂ for 2025 is 18% below the median of 21,362 t among the 238 ro-ro ships on this register that reported for 2025. Per nautical mile it emitted 306.8 kg CO₂, close to the type median of 327.0 kg. It logged 4,537 hours at sea against a median of 4,872 hours for its type that year. 6.0% of its 2025 emissions were at berth; the median for ro-ro ships was 4.3%. Across 8 years with reported emissions, the highest was 2018 (89,723 t) and the lowest 2025 (17,487 t). Its efficiency percentile within the type went from 97 in 2018 to 57 in 2025 (lower is more efficient). Of the 8 comparable vessels listed below with a 2025 return, 3 reported a lower CO₂ per nautical mile than this vessel.

Emissions by year2018–2025

Vessel particulars

IMO number

9209453

Ship type

Ro-ro ship

Gross tonnage

21,369

Length overall

182.2 m

Year built

2002

Flag state

Malta per EU MRV 2025

Builder

Hudong-Zhonghua Shipbuilding

Port of registry

Valletta MRV 2025

Ice class

IA

Technical efficiency (design)

EEXI (13.25 gCO₂/t·nm)

Verifier

DNV, Germany

Accreditation

VS-16026-01

Compliance document issued

2026-01-27

Compliance document expires

2027-06-30

Efficiency against its own type2025

Position 110 of 192 qualifying ro-ro ships by EEOI, at the 57th percentile. The dashed line is the type median, 85.3; this vessel reported 90.3.

EEOI divides emissions by transport work, which for this vessel and year was 193,634,260 tonne-miles over 57,000 nautical miles.

Reported CO₂ by year

Reported CO₂ in 2025 was 80.5% lower than in 2018, for EU/EEA voyages only.

From 2024 to 2025, emissions fell 37.6% while distance sailed fell 37.9%and CO₂ per nautical mile rose 0.5%.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

17,760 t

Methane (CH₄)

0.28 t

Nitrous oxide (N₂O)

1.00 t

Under EU ETS

12,120 t, 69% 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 and 5 of 5 vessel particulars. Not found in the sources for this vessel: AIS movements in Norwegian waters, a name history, 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.

Comparable vesselsnearest by tonnage, same type

• BALTICA 1990 · 21,224 GT · 23,748 t · 291.5 kg/nm
• VILLE DE BORDEAUX 2004 · 21,528 GT · 26,749 t · 279.5 kg/nm
• SARDINIA 2004 · 21,171 GT · 5,038 t · 502.7 kg/nm
• NEPTUNE AEGLI 2002 · 21,554 GT · 17,741 t · 318.7 kg/nm
• CITY OF ROTTERDAM 2011 · 21,143 GT · 11,282 t · 168.3 kg/nm
• NEPTUNE DYNAMIS 2002 · 21,554 GT · 19,250 t · 310.5 kg/nm
• MSC BRIDGE 1998 · 21,104 GT · 12,848 t · 376.3 kg/nm
• GRENDI FUTURA 2014 · 21,801 GT · 14,917 t · 335.6 kg/nm