TonneMiles

Ro-pax ship · Italy flag · built 2004

GNV SIRIO: CO₂ emissions 2018–2025

IMO 9293404 EU ETS8 reporting years

CO₂ reported 2025
69,497 t
Fuel burned
21,880 t
Time at sea
4,072 h
Emitted at berth
10% of total
Share of year under way
46%
Gross tonnage
39,780
GNV SIRIO
Eustace Bagge, CC BY-SA 3.0 · File

GNV SIRIO against its type

Built in 2004, it is 4 years newer than the median ro-pax ship on this register, which was built in 2000 (483 vessels with a known build year). At 39,780 gross tonnage it is larger than 86% of the other 470 ro-pax ships with a recorded tonnage. It is one of 84 ro-pax ships here under the Italy flag, 17.0% of the 493 on the register. The same builder is recorded for 132 other vessels here, 27 of them ro-pax ships. Tirrenia – Compagnia italiana di navigazione is linked to 3 vessels on this register. Its MRV returns name it NURAGHES for 2018–2022 and GNV SIRIO for 2023–2025. The reported port of registry changed: Cagliari (2018–2023), then Genova (2024–2025).

Its 69,497 t of CO₂ for 2025 is 2.3 times the median of 30,062 t among the 417 ro-pax ships on this register that reported for 2025. Per nautical mile it emitted 859.3 kg CO₂, 1.8 times the type median of 467.6 kg. It logged 4,072 hours at sea against a median of 4,243 hours for its type that year. 10.0% of its 2025 emissions were at berth; the median for ro-pax ships was 6.7%. Across 8 years with reported emissions, the highest was 2025 (69,497 t) and the lowest 2022 (45,037 t). Of the 5 sister ships listed below with a 2025 return, 5 reported a lower CO₂ per nautical mile than this vessel.

Emissions by year2018–2025

Year CO₂ (t) Fuel (t) Distance (nm) At sea (h) At berth (t) kg CO₂/nm EEOI Percentile
2025 69,497 21,880 — 4,072 6,927 859.3 — —
2024 56,824 18,165 — 3,518 6,013 791.0 — —
2023 61,342 19,665 — 4,378 4,666 738.8 — —
2022 45,037 14,420 — 3,700 5,176 697.5 — —
2021 46,970 15,044 — 3,730 4,339 713.4 — —
2020 45,861 14,687 — 3,596 4,593 711.6 — —
2019 49,045 15,706 — 3,965 5,053 667.4 — —
2018 49,333 15,800 — 4,428 6,172 631.6 — —

Vessel particulars

IMO number
9293404
Previously reported as
NURAGHES
Ship type
Ro-pax ship
Gross tonnage
39,780
Length overall
214.0 m
Year built
2004
Flag state
Italy per EU MRV 2025
Builder
Fincantieri
Port of registry
Genova MRV 2025
Technical efficiency (design)
EEXI (23.07 gCO₂/t·nm)
Operator
Tirrenia – Compagnia italiana di navigazione
Verifier
RINA Services Spa, Italy
Accreditation
002O
Compliance document issued
2026-03-02
Compliance document expires
2027-06-30

Reported CO₂ by year

2018: 49,333 t201849,3332019: 49,045 t20192020: 45,861 t20202021: 46,970 t20212022: 45,037 t20222023: 61,342 t20232024: 56,824 t20242025: 69,497 t202569,497

Reported CO₂ in 2025 was 40.9% higher than in 2018, for EU/EEA voyages only.

From 2024 to 2025, emissions rose 22.3% and CO₂ per nautical mile rose 8.6%.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: 6,927 t6,927Within EEA portsWithin EEA ports: 6,927 t6,927Voyages between EEA portsVoyages between EEA ports: 50,259 t50,259Voyages to an EEA portVoyages to an EEA port: 6,248 t6,248Voyages from an EEA portVoyages from an EEA port: 6,063 t6,063

Methane, nitrous oxide and EU ETS2025

Total CO₂ equivalent
70,572 t
Methane (CH₄)
1.09 t
Nitrous oxide (N₂O)
3.94 t
Under EU ETS
63,342 t, 91% of total

Sources and how to read this

This page draws on 8 MRV reporting years, 5 of 5 vessel particulars, a name history and a licensed photograph. Not found in the sources for this vessel: an efficiency ranking, AIS movements in Norwegian waters, 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