TonneMiles

Passenger ship · Panama flag · built 1992

CROWN IRIS: CO₂ emissions 2019–2025

IMO 8814744 EU ETS5 reporting years

CO₂ reported 2025
34,750 t
Fuel burned
10,863 t
Time at sea
4,100 h
Emitted at berth
12% of total
Share of year under way
47%
Gross tonnage
32,396
CROWN IRIS
Ivan T., CC BY-SA 3.0 · File

CROWN IRIS against its type

Built in 1992, it is 14 years older than the median passenger ship on this register, which was built in 2006 (127 vessels with a known build year). At 32,396 gross tonnage it is smaller than 59% of the other 117 passenger ships with a recorded tonnage. It is one of 7 passenger ships here under the Panama flag, 5.3% of the 132 on the register. The same builder is recorded for 19 other vessels here, 8 of them passenger ships. Marella Cruises is linked to 3 vessels on this register. The returns for 2019–2025 all give Panama as port of registry.

Its 34,750 t of CO₂ for 2025 is 4.9 times the median of 7,055 t among the 32 passenger ships on this register that reported for 2025. Per nautical mile it emitted 632.4 kg CO₂, 2.5 times the type median of 248.9 kg. It logged 4,100 hours at sea against a median of 2,827 hours for its type that year. 12.2% of its 2025 emissions were at berth; the median for passenger ships was 12.8%. Across 5 years with reported emissions, the highest was 2019 (40,325 t) and the lowest 2023 (28,118 t). Of the 2 comparable vessels listed below with a 2025 return, 2 reported a lower CO₂ per nautical mile than this vessel.

Emissions by year2019–2025

Year CO₂ (t) Fuel (t) Distance (nm) At sea (h) At berth (t) kg CO₂/nm EEOI Percentile
2025 34,750 10,863 — 4,100 4,238 632.4 — —
2024 28,924 9,241 — 2,960 2,997 703.4 — —
2023 28,118 8,975 — 2,915 4,109 716.9 — —
2022 28,210 8,998 — 2,836 4,410 760.2 — —
2019 40,325 12,858 — 3,460 6,340 820.5 — —

Vessel particulars

IMO number
8814744
Ship type
Passenger ship
Gross tonnage
32,396
Length overall
216.0 m
Year built
1992
Flag state
Panama per EU MRV 2025
Builder
Kvaerner Masa-Yards
Port of registry
Panama MRV 2025
Ice class
IA Super
Technical efficiency (design)
9.55 gCO₂/t·nm
Operator
Marella Cruises, Norwegian Cruise Line, Star Cruises
Verifier
RINA HELLAS LTD, Greece
Accreditation
1325
Compliance document issued
2026-04-14
Compliance document expires
2027-06-30

Reported CO₂ by year

2019: 40,325 t201940,3252022: 28,210 t20222023: 28,118 t20232024: 28,924 t20242025: 34,750 t202534,750

Reported CO₂ in 2025 was 13.8% lower than in 2019, for EU/EEA voyages only. No return is recorded for 2020, 2021, so the series has gaps.

From 2024 to 2025, emissions rose 20.1% and CO₂ per nautical mile fell 10.1%.Distance is missing for at least one of the two years, so activity and efficiency cannot be separated here.

Where the 2025 emissions occurred

At berthAt berth: 4,238 t4,238Within EEA portsWithin EEA ports: 4,258 t4,258Voyages between EEA portsVoyages between EEA ports: 6,427 t6,427Voyages to an EEA portVoyages to an EEA port: 11,850 t11,850Voyages from an EEA portVoyages from an EEA port: 12,215 t12,215

Methane, nitrous oxide and EU ETS2025

Total CO₂ equivalent
35,283 t
Methane (CH₄)
0.54 t
Nitrous oxide (N₂O)
1.96 t
Under EU ETS
22,718 t, 65% of total

Verifier history

From reporting yearVerifierAccredited in
2019HELLENIC LLOYD'S S.A.Greece
2023RINA HELLAS LTDGreece

A change of verifier is not in itself a sign of anything being wrong.

Sources and how to read this

This page draws on 5 MRV reporting years, 5 of 5 vessel particulars and a licensed photograph. Not found in the sources for this vessel: an efficiency ranking, 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 vesselsnearest by tonnage, same type