Navalyze

Navalyze · Ro-pax · Ship

CONNEMARA

IMO
9349760
Type
Ro-pax ship
Flag (estimated)
Bahamas
Port of registry
Nassau
Technical efficiency
EIV 19.32 g CO₂/t·nm
Ice class
IC
?

2018 at a glance

From the 2018 THETIS-MRV report.

Fuel kg/nm
162
Ro-pax median 158 kg/nm (+2%)
CO₂ per transport work (pax)
2,907
g CO₂/pax·nm · Ro-pax median 729 (+299%)
CO₂ per transport work (freight)
281
g CO₂/t·nm · Ro-pax median 184 (+53%)
Average speed
19.4 kn
Ro-pax median 16.1 kn (+20%)
Fuel per day at sea
75.2 t/day
Fuel consumed
13,532 t
CO₂ emitted
42,350 t
Distance sailed
83,788 nm
CO₂ ÷ CO₂ per mile
Time at sea
4,317 h
180 days, 49% of the year

Within the ro-pax fleet, 2022

Set against all 394 ro-pax ships with a full-year 2022 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 171 kg/nm · median 157 (+9%)
79.7Ranks 233 of 394, lowest first241
Average speedThis ship 19.5 kn · median 16.0 (+22%)
12.3Faster than 79% of ro-pax ships22.6
CO₂ per transport work (pax)This ship 1,302 g CO₂/pax·nm · median 626 (+108%)
71.5Ranks 335 of 394, lowest first1,606
CO₂ per transport work (freight)This ship 159 g CO₂/t·nm · median 253 (−37%)
66.3Ranks 147 of 394, lowest first1,135
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 ports94%
  • From the EU0%
  • Into the EU0%
  • At berth in the EU6%
Fuel burned laden
–
Not reported
CO₂ at berth
2,621 t
6.2% 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

  • CONNEMARA
  • Ro-pax median

Average speed, kn

  • CONNEMARA
  • Ro-pax median

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

  • CONNEMARA
  • Ro-pax median

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

  • CONNEMARA
  • Ro-pax median

Year on year

YearAverage speedFuel kg/nmFuel per day at seaDistanceCO₂ per transport workReading
2021→2022+0.1 kn+7%+8%−10%−40%Same speed, fuel per mile up 7%; worse than speed alone explains (fouling, weather, loading or trade).
2020→2021+5.6 kn−8%+29%+170%−46%5.6 kn faster, fuel per mile down 8%; better than speed alone explains (hull, engine or trade).
2019→2020−4.9 kn−6%−31%−55%+640%4.9 kn slower, fuel per mile down 6%; worse than speed alone explains (fouling, weather, loading or trade).
2018→2019−0.7 kn+14%+10%+30%−81%0.7 kn slower, fuel per mile up 14%; 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
2022not published20,60265,259120,2896,16819.5171––
2021not published21,24467,134133,0516,87219.4160––
2020not published8,52627,13749,3013,56013.8173––
2019not published20,08862,852108,8525,81518.7185––
2018not published13,53242,35083,7884,31719.4162––

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
2022not published1,302626+108%335 of 394159253−37%DNVB
2021not published2,155815+164%337 of 377153226−32%DNVB+C
2020not published4,021751+435%371 of 387673217+210%DNVB+C
2019not published543569−5%189 of 394621223+179%Bureau VeritasA
2018not published2,907729+299%327 of 361281184+53%Lloyd's RegisterB

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.