Navalyze · Ro-pax · Ship

CRUISE BONARIA

IMO: 9204063
Type: Ro-pax ship
Flag (estimated): Italy
Port of registry: Palermo
Technical efficiency: EIV 21.01 g CO₂/t·nm
Former names: KNOSSOS PALACE

ISM company (DoC holder) in 2025: GRIMALDI EUROMED S.p.A · part of Grimaldi Group

Report year

2020 at a glance

From the 2020 THETIS-MRV report.

Fuel kg/nm

249

Ro-pax median 157 kg/nm (+59%)

CO₂ per transport work (pax)

1,033

g CO₂/pax·nm · Ro-pax median 751 (+38%)

CO₂ per transport work (freight)

81.2

g CO₂/t·nm · Ro-pax median 217 (−63%)

Average speed

20.3 kn

Ro-pax median 15.8 kn (+28%)

Fuel per day at sea

121.2 t/day

Fuel consumed

12,670 t

CO₂ emitted

39,554 t

Distance sailed

50,878 nm

CO₂ ÷ CO₂ per mile

Time at sea

2,510 h

105 days, 29% of the year

Within the ro-pax fleet, 2025

Set against all 408 ro-pax ships with a full-year 2025 report. Bigger ships burn more per mile but less per tonne of cargo, so read fuel per mile with the ship's size in mind.

Fuel kg/nmThis ship 228 kg/nm · median 150 (+52%)

69.3Ranks 361 of 408, lowest first232

Average speedThis ship 17.4 kn · median 15.8 (+10%)

12.0Faster than 66% of ro-pax ships22.3

CO₂ per transport work (pax)This ship 794 g CO₂/pax·nm · median 567 (+40%)

66.8Ranks 258 of 408, lowest first1,569

CO₂ per transport work (freight)This ship 141 g CO₂/t·nm · median 253 (−44%)

48.6Ranks 135 of 408, lowest first1,247

Middle 80% of shipsMiddle 50%Ro-pax medianThis ship

Where the emissions happen, 2020

THETIS splits each ship's CO₂ by voyage type. The split sets how much falls under the EU ETS: all of it within the EU and at berth, half of it on voyages into or out of the EU.

Between EU ports91%
From the EU0%
Into the EU0%
At berth in the EU9%

Fuel burned laden

–

Not reported

CO₂ at berth

3,477 t

8.8% of the ship's CO₂, alongside in EU ports

Methane (CH₄)

–

Mainly from LNG; small for oil, biofuel and methanol

CO₂eq uplift

–

CO₂eq on top of CO₂ alone, from CH₄ and N₂O

Over the years

Full-year reports only. The Ro-pax median is the middle ship of all ro-pax ships reporting that year; it moves with the fleet, so a ship can gain on it without changing itself.

Fuel kg/nm

CRUISE BONARIA
Ro-pax median

150.0200.0250.0300.0

’182018’192019’202020’212021’222022’232023’242024’252025

Average speed, kn

CRUISE BONARIA
Ro-pax median

14.016.018.020.022.024.0

’182018’192019’202020’212021’222022’232023’242024’252025

CO₂ per transport work (freight), g CO₂/t·nm

CRUISE BONARIA
Ro-pax median

0.0100200300400500

’182018’192019’202020’212021’222022’232023’242024’252025

CO₂ per transport work (pax), g CO₂/pax·nm

CRUISE BONARIA
Ro-pax median

0.05001,0001,5002,000

’182018’192019’202020’212021’222022’232023’242024’252025

Year on year

Year	Average speed	Fuel kg/nm	Fuel per day at sea	Distance	CO₂ per transport work	Reading
2024→2025	−1.2 kn	−9%	−15%	−33%	−22%	1.2 kn slower, fuel per mile down 9%; in line with the speed change.
2023→2024	+1.5 kn	−2%	+6%	+20%	+50%	1.5 kn faster, fuel per mile down 2%; better than speed alone explains (hull, engine or trade).
2022→2023	−1.5 kn	+1%	−8%	−18%	−48%	1.5 kn slower, fuel per mile flat; worse than speed alone explains (fouling, weather, loading or trade).
2021→2022	−4.9 kn	+4%	−17%	−6%	−26%	4.9 kn slower, fuel per mile up 4%; worse than speed alone explains (fouling, weather, loading or trade).
2020→2021	+3.2 kn	−1%	+14%	+88%	+71%	3.2 kn faster, fuel per mile flat; better than speed alone explains (hull, engine or trade).
2019→2020	−0.7 kn	−1%	−4%	−29%	+2,710%	0.7 kn slower, fuel per mile flat; worse than speed alone explains (fouling, weather, loading or trade).
2018→2019	+0.1 kn	−4%	−3%	+9%	−11%	Same speed, fuel per mile down 4%; in line with the speed change.

Fuel per mile rises roughly with the square of speed for a given ship, so a change in speed explains much of a change in fuel per mile.

Every reporting year

One row per THETIS-MRV report. A ship that changed operator during a year has a part-year report for each.

Operation

Year	ISM company	Fuel t	CO₂ t	Distance nm	Hours at seah	Average speedknots at sea	Fuel kg/nmthis ship	CO₂ per transport work (cargo)g/t·nm, this ship	Laden fuel
2025	GRIMALDI EUROMED S.p.A	13,599	42,511	59,633	3,423	17.4	228	–	–
2024	GRIMALDI EUROMED S.p.A	22,310	69,651	88,765	4,784	18.6	251	–	–
2023	not published	19,013	59,389	73,784	4,313	17.1	258	–	–
2022	not published	22,997	71,737	89,774	4,817	18.6	256	–	–
2021	not published	23,514	73,347	95,437	4,068	23.5	246	–	–
2020	not published	12,670	39,554	50,878	2,510	20.3	249	–	–
2019	not published	17,872	55,906	71,184	3,392	21.0	251	–	–
2018	not published	17,040	53,340	65,471	3,132	20.9	260	–	–

Benchmark and verification

Year	ISM company	CO₂ per TW, g CO₂/pax·nm	Ro-pax median	vs Ro-pax	Rank	Freight, g CO₂/t·nm	Ro-pax median	vs Ro-pax	Verifier	Methods
2025	GRIMALDI EUROMED S.p.A	794	567	+40%	258 of 408	141	253	−44%	RINA	A
2024	GRIMALDI EUROMED S.p.A	1,024	547	+87%	299 of 404	116	233	−50%	RINA	A
2023	not published	682	680	+0%	197 of 386	155	234	−34%	RINA	A
2022	not published	1,308	626	+109%	336 of 394	99.1	253	−61%	RINA	A
2021	not published	1,764	815	+116%	325 of 377	92.8	226	−59%	RINA	A
2020	not published	1,033	751	+38%	223 of 387	81.2	217	−63%	RINA	A
2019	not published	36.8	569	−94%	44 of 394	358	223	+61%	RINA	A
2018	not published	41.2	729	−94%	51 of 361	416	184	+126%	RINA	–

Fuel per mile and CO₂ per tonne-mile are the ship's own reported KPIs. Ro-pax ships are benchmarked on CO₂ per transport work (pax) (TW), in g CO₂/pax·nm, and also per tonne of freight (g CO₂/t·nm freight). CO₂eq adds methane and nitrous oxide and is in the public files from 2024. Rank counts from the lowest figure among that year's ro-pax ships. Methods: A delivery notes, B tank monitoring, C flow meters, D direct measurement. FuelEU GHG intensity is not shown: it needs fuel types, which the public file does not carry. Operators are named only from 2024, the first year the public files carry them; earlier years belong to the ship, not to any company.