TonneMiles

Passenger ship (Cruise Passenger ship) · Bermuda flag · built 2020

IONA: CO₂ emissions 2021–2025

IMO 9826548 MMSI 310857000EU ETS5 reporting years

CO₂ reported 2025
86,610 t
Fuel burned
30,684 t
Time at sea
5,886 h
Emitted at berth
7% of total
Share of year under way
67%
Gross tonnage
184,000
IONA
Dickelbers, CC BY-SA 4.0 · File

IONA against its type

Built in 2020, it is 10 years newer than the median cruise ship on this register, which was built in 2010 (195 vessels with a known build year). At 184,000 gross tonnage it is larger than 97% of the other 177 cruise ships with a recorded tonnage. It is one of 24 cruise ships here under the Bermuda flag, 11.9% of the 202 on the register. The same builder is recorded for 65 other vessels here, 29 of them cruise ships. P&O Cruises is linked to 6 vessels on this register. The reported port of registry changed: Southampton (2021–2024), then Hamilton (2025).

Its 86,610 t of CO₂ for 2025 is 2.8 times the median of 31,269 t among the 200 cruise ships on this register that reported for 2025. Per nautical mile it emitted 944.5 kg CO₂, 15% above the type median of 821.3 kg. It logged 5,886 hours at sea against a median of 3,133 hours for its type that year. 7.2% of its 2025 emissions were at berth; the median for cruise ships was 15.1%. Across 5 years with reported emissions, the highest was 2022 (129,584 t) and the lowest 2021 (30,329 t). Of the 7 sister ships listed below with a 2025 return, 4 reported a lower CO₂ per nautical mile than this vessel.

Emissions by year2021–2025

Year CO₂ (t) Fuel (t) Distance (nm) At sea (h) At berth (t) kg CO₂/nm EEOI Percentile
2025 86,610 30,684 — 5,886 6,229 944.5 — —
2024 90,060 33,119 — 6,237 8,066 923.8 — —
2023 97,447 33,947 — 6,112 8,942 1,019.3 — —
2022 129,584 41,140 — 6,245 9,645 1,481.4 — —
2021 30,329 10,117 — 1,674 2,635 1,313.0 — —

Vessel particulars

IMO number
9826548
MMSI
310857000
Call sign
ZCHG9
Ship type
Passenger ship (Cruise Passenger ship)
Gross tonnage
184,000
Length overall
344.0 m
Beam
54.0 m
Year built
2020
Flag state
Bermuda per EU MRV 2025
Builder
Meyer Werft
Port of registry
Hamilton MRV 2025
Home port
Southampton
Technical efficiency (design)
EEXI (5.88 gCO₂/t·nm)
Operator
P&O Cruises, Carnival Corporation
Verifier
DNV, Germany
Accreditation
VS-16026-01
Compliance document issued
2026-02-23
Compliance document expires
2027-06-30

Reported CO₂ by year

2021: 30,329 t202130,3292022: 129,584 t20222023: 97,447 t20232024: 90,060 t20242025: 86,610 t202586,610

Reported CO₂ in 2025 was 185.6% higher than in 2021, for EU/EEA voyages only.

From 2024 to 2025, emissions fell 3.8% and CO₂ per nautical mile rose 2.2%.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: 6,229 t6,229Within EEA portsWithin EEA ports: 6,229 t6,229Voyages between EEA portsVoyages between EEA ports: 26,250 t26,250Voyages to an EEA portVoyages to an EEA port: 28,468 t28,468Voyages from an EEA portVoyages from an EEA port: 25,663 t25,663

Methane, nitrous oxide and EU ETS2025

Total CO₂ equivalent
106,528 t
Methane (CH₄)
674.20 t
Nitrous oxide (N₂O)
3.93 t
Under EU ETS
52,738 t, 61% of total

Observed movementsAIS · Norwegian waters

First seen
03 Jul 2025
Last seen
23 Jul 2026
Days observed
92
Positions
10,576
Median speed
16.4 kn

Its recorded positions span 58.0°N to 62.6°N and 4.4°E to 8.2°E.

60.0062.005.006.007.008.00BergenKarstoMongstadStavangerAlesundArdalstangenEgersundEspevaerFirst observed positionLast observed position100 nm°N°E

400 hourly points from 10,576 positions. Filled circle first, open circle last; squares are ports for orientation, not calls.

Positions recorded per month

Jul 25: 1,061 positionsJul 251,061Aug 25: 1,913 positionsAug 25Sep 25: 1,350 positionsSep 25Apr 26: 1,283 positionsApr 26May 26: 2,072 positionsMay 26Jun 26: 1,905 positionsJun 26Jul 26: 992 positionsJul 26992

Norwegian Coastal Administration open AIS, Norwegian waters only, 01 Jul 2025 to 27 Jul 2026. A gap means the vessel was not recorded here, not that it was idle or that a transponder was off.

Verifier history

From reporting yearVerifierAccredited in
2021HELLENIC LLOYD'S S.A.Greece
2023DNVGermany

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, AIS movements in Norwegian waters and a licensed photograph. Not found in the sources for this vessel: an efficiency ranking, 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