Navalyze · Market view · Segment
Combination ships, 2023
7 combination ships reported to THETIS-MRV for 2023, emitting 39 kt of CO₂. Efficiency is measured as g CO₂/t·nm.
The segment at a glance
Median ship
24.5
g CO₂/t·nm
Fuel per mile
102 kg
Median ship
Average speed
11.1 kn
Median ship, distance over hours at sea
Hours at sea
1,430
Median ship, EU-scope voyages (16% of the year)
CO₂ at berth
4.3%
Share emitted alongside in EU ports
Ships burning LNG
0
of 5 benchmarked
Operators
The 2023 public files do not name the companies managing each ship, so operator rankings start in 2024.
Who verifies the reports
Accredited verifiers check each ship's MRV report. Their share of the segment's ships and CO₂.
Share of CO₂Share of ships
- Bureau Veritas42.2% / 28.6%
- RINA35.9% / 28.6%
- DNV14.6% / 28.6%
- ABS7.2% / 14.3%
How fuel is measured
Each ship's monitoring plan names one or more of the four MRV methods.
A · Bunker delivery notes
71%
Fuel bought, corrected by tank soundings
B · Bunker tank monitoring
14%
Tank readings on board
C · Flow meters
29%
Meters on the fuel lines to engines and boilers
D · Direct measurement
0%
CO₂ measured in the exhaust
Most common combinations
- A57%
- C29%
- A + B14%
Share of 7 emission reports that name a method; a report can name several.
Notes
- Medians and rankings use 5 full-year reports with fuel; part-year and zero-fuel reports count towards totals only.
- THETIS reports time at sea on EU-scope voyages only, not time in port. CO₂ at berth is the closest measure of port activity it publishes.
- Speed and distance are derived from the published ratios; THETIS has no distance column.