CELSIUS MONACO: CO₂ emissions 2018–2025

CELSIUS MONACO against its type

Built in 2005, it is 5 years older than the median chemical tanker on this register, which was built in 2010 (1,951 vessels with a known build year). At 11,986 gross tonnage it is smaller than 70% of the other 1,899 chemical tankers with a recorded tonnage. It is one of 474 chemical tankers here under the Marshall Islands flag, 20.2% of the 2,344 on the register. The same builder is recorded for 307 other vessels here, 98 of them chemical tankers. Its MRV returns name it CELSIUS MONACO for 2018–2022 and SERENE MONACO for 2023–2025. The returns for 2018–2025 all give MAJURO as port of registry.

Its 3,955 t of CO₂ for 2025 is 28% below the median of 5,531 t among the 1,484 chemical tankers on this register that reported for 2025. Per nautical mile it emitted 191.7 kg CO₂, 23% below the type median of 250.2 kg. It logged 2,715 hours at sea against a median of 2,106 hours for its type that year. 6.4% of its 2025 emissions were at berth; the median for chemical tankers was 6.6%. Across 8 years with reported emissions, the highest was 2022 (8,373 t) and the lowest 2024 (2,432 t). Its efficiency percentile within the type was 54 in both 2018 and 2025. Of the 4 sister ships listed below with a 2025 return, 0 reported a lower CO₂ per nautical mile than this vessel.

Emissions by year2018–2025

Vessel particulars

IMO number

9309629

Previously reported as

SERENE MONACO

Ship type

Chemical tanker

Gross tonnage

11,986

Length overall

147.8 m

Year built

2005

Flag state

Marshall Islands per EU MRV 2025

Builder

Shin Kurushima Dockyard

Port of registry

MAJURO MRV 2025

Home port

MAJURO

Technical efficiency (design)

EIV (10.04 gCO₂/t·nm)

Verifier

Nippon Kaiji Kyokai, Japan

Accreditation

VS-21325-01

Compliance document issued

2026-03-11

Compliance document expires

2027-06-30

Efficiency against its own type2025

Position 724 of 1,348 qualifying chemical tankers by EEOI, at the 54th percentile. The dashed line is the type median, 14.4; this vessel reported 15.2.

EEOI divides emissions by transport work, which for this vessel and year was 260,038,133 tonne-miles over 20,628 nautical miles.

Reported CO₂ by year

Reported CO₂ in 2025 was 42.2% lower than in 2018, for EU/EEA voyages only.

From 2024 to 2025, emissions rose 62.6% while distance sailed rose 84.9%and CO₂ per nautical mile fell 12.1%.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

4,017 t

Methane (CH₄)

0.06 t

Nitrous oxide (N₂O)

0.23 t

Under EU ETS

2,454 t, 62% of total

Verifier history

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).

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.

Comparable vesselssister ships and nearest by tonnage

• BOW SANTOS sister · 2004 · 12,005 GT · 3,512 t · 247.4 kg/nm
• CYPRESS GALAXY sister · 2007 · 12,104 GT · 5,937 t · 205.2 kg/nm
• FORTITUDE sister · 2004 · 12,105 GT · 3,184 t · 238.4 kg/nm
• CELSIUS MACAU sister · 2006 · 12,105 GT · 3,349 t · 202.9 kg/nm
• THERESA GALAXY sister · 2005 · 12,105 GT · 4,058 t · 229.7 kg/nm
• ELM GALAXY sister · 2006 · 12,105 GT · 1,293 t · 269.5 kg/nm
• AZALEA GALAXY sister · 2006 · 12,105 GT · 7,593 t · 217.4 kg/nm
• SARANGA sister · 2006 · 12,105 GT · 2,189 t · 178.9 kg/nm