Navalyze · Market view · Segment
Reefer ships, 2019
152 reefer ships reported to THETIS-MRV for 2019, emitting 1.7 Mt of CO₂. Efficiency is measured as g CO₂/t·nm.
The segment at a glance
Median ship
62.6
g CO₂/t·nm
Fuel per mile
88 kg
Median ship
Average speed
15.2 kn
Median ship, distance over hours at sea
Hours at sea
1,918
Median ship, EU-scope voyages (22% of the year)
CO₂ at berth
3.6%
Share emitted alongside in EU ports
Ships burning LNG
0
of 147 benchmarked
Operators
The 2019 public files do not name the companies managing each ship, so operator rankings start in 2024.
Efficiency by ship size
Bigger ships move a tonne of cargo for less fuel, so ships are compared within size bands. Each row is drawn against the segment median.
0.25×0.5×segment median2×4×Median
- Q1: ~1,880 t121 g CO₂/t·nm
- Q2: ~3,038 t67.5 g CO₂/t·nm
- Q3: ~4,028 t66.2 g CO₂/t·nm
- Q4: ~5,420 t53 g CO₂/t·nm
- Q5: ~9,566 t35.1 g CO₂/t·nm
Q1 to Q5 split the fleet into fifths by average cargo carried, derived from the published ratios.
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 Veritas40.7% / 34.2%
- Lloyd's Register15.3% / 13.8%
- Verifavia14.6% / 19.1%
- ClassNK13.9% / 11.8%
- DNV8.9% / 15.1%
- ABS6.1% / 4.6%
- RINA0.6% / 1.3%
How fuel is measured
Each ship's monitoring plan names one or more of the four MRV methods.
A · Bunker delivery notes
59%
Fuel bought, corrected by tank soundings
B · Bunker tank monitoring
32%
Tank readings on board
C · Flow meters
36%
Meters on the fuel lines to engines and boilers
D · Direct measurement
0%
CO₂ measured in the exhaust
Most common combinations
- A54%
- B + C23%
- B10%
- C9%
- A + C4%
Share of 145 emission reports that name a method; a report can name several.
Notes
- Medians and rankings use 147 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.