Navalyze

Navalyze · Ro-pax · Ship

ST.CLARE

IMO
9236949
Type
Ro-pax ship
Flag (estimated)
United Kingdom
Port of registry
London
Technical efficiency
EIV 65.03 g CO₂/t·nm
?

2018 at a glance

From the 2018 THETIS-MRV report.

Fuel kg/nm
48.8
Ro-pax median 158 kg/nm (−69%)
CO₂ per transport work (pax)
17.0
g CO₂/pax·nm · Ro-pax median 729 (−98%)
CO₂ per transport work (freight)
1.00
g CO₂/t·nm · Ro-pax median 184 (−99%)
Average speed
9.4 kn
Ro-pax median 16.1 kn (−42%)
Fuel per day at sea
11.1 t/day
Fuel consumed
2,134 t
CO₂ emitted
6,841 t
Distance sailed
43,766 nm
CO₂ ÷ CO₂ per mile
Time at sea
4,631 h
193 days, 53% of the year

Within the ro-pax fleet, 2020

Set against all 387 ro-pax ships with a full-year 2020 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 51.1 kg/nm · median 157 (−67%)
84.3Ranks 11 of 387, lowest first246
Average speedThis ship 9.4 kn · median 15.8 (−41%)
12.3Faster than 3% of ro-pax ships21.7
CO₂ per transport work (pax)This ship 0.18 g CO₂/pax·nm · median 751 (−100%)
38.6Ranks 3 of 387, lowest first2,529
CO₂ per transport work (freight)This ship 0.18 g CO₂/t·nm · median 217 (−100%)
38.1Ranks 1 of 387, lowest first1,075
Middle 80% of shipsMiddle 50%Ro-pax medianThis ship

Where the emissions happen, 2018

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 ports100%
  • From the EU0%
  • Into the EU0%
  • At berth in the EU0%
Fuel burned laden
–
Not reported
CO₂ at berth
0 t
0.0% 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

  • ST.CLARE
  • Ro-pax median

Average speed, kn

  • ST.CLARE
  • Ro-pax median

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

  • ST.CLARE
  • Ro-pax median

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

  • ST.CLARE
  • Ro-pax median

Year on year

YearAverage speedFuel kg/nmFuel per day at seaDistanceCO₂ per transport workReading
2019→2020+0.0 kn−3%−3%−12%–Same speed, fuel per mile down 3%; in line with the speed change.
2018→2019+0.0 kn+8%+8%−30%–Same speed, fuel per mile up 8%; worse than speed alone explains (fouling, weather, loading or trade).

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

YearISM companyFuel tCO₂ tDistance nmHours at seahAverage speedknots at seaFuel kg/nmthis shipCO₂ per transport work (cargo)g/t·nm, this shipLaden fuel
2020not published1,3904,45627,1842,8779.451.1––
2019not published1,6235,20430,7693,2569.452.8––
2018not published2,1346,84143,7664,6319.448.8––

Benchmark and verification

YearISM companyCO₂ per TW, g CO₂/pax·nmRo-pax medianvs Ro-paxRankFreight, g CO₂/t·nmRo-pax median vs Ro-pax VerifierMethods
2020not published0.18751−100%3 of 3870.18217−100%Lloyd's RegisterA
2019not published–––––––Lloyd's RegisterA
2018not published17.0729−98%44 of 3611.00184−99%Lloyd's RegisterA

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.