Navalyze

Navalyze · Market view · Segment

Reefer ships, 2021

160 reefer ships reported to THETIS-MRV for 2021, emitting 1.6 Mt of CO₂. Efficiency is measured as g CO₂/t·nm.

The segment at a glance

Median ship
55.0
g CO₂/t·nm
Fuel per mile
84 kg
Median ship
Average speed
15.5 kn
Median ship, distance over hours at sea
Hours at sea
1,892
Median ship, EU-scope voyages (22% of the year)
CO₂ at berth
3.7%
Share emitted alongside in EU ports
Ships burning LNG
0
of 158 benchmarked

Operators

The 2021 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×
  • Q1: ~2,141 t70.2 g CO₂/t·nm
  • Q2: ~3,708 t64.2 g CO₂/t·nm
  • Q3: ~4,456 t60.4 g CO₂/t·nm
  • Q4: ~5,910 t45.4 g CO₂/t·nm
  • Q5: ~8,606 t38.5 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
  • Verifavia25.2% / 21.9%
  • Bureau Veritas25.1% / 26.9%
  • ClassNK18.1% / 12.5%
  • DNV15.7% / 18.8%
  • Lloyd's Register8.0% / 12.5%
  • ABS4.9% / 3.8%
  • ICS Verification Services2.4% / 2.5%
  • Russian Maritime Register of Shipping0.5% / 0.6%
  • RINA0.1% / 0.6%

How fuel is measured

Each ship's monitoring plan names one or more of the four MRV methods.

A · Bunker delivery notes
53%
Fuel bought, corrected by tank soundings
B · Bunker tank monitoring
31%
Tank readings on board
C · Flow meters
43%
Meters on the fuel lines to engines and boilers
D · Direct measurement
0%
CO₂ measured in the exhaust

Most common combinations

  • A48%
  • B + C22%
  • C16%
  • B9%
  • A + C4%

Share of 160 emission reports that name a method; a report can name several.

Notes

  • Medians and rankings use 158 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.