AHTS (Anchor Handling Tug Supply) Fuel & CO₂

AHTS vessels handle rig anchors, towing, and emergency response in offshore fields. Outside CII scope; benchmarked on fuel per bollard-pull-hour or per operational day.

Ship typeOffshoreAHTS

Operational year

Bollard pull ratingtModern large AHTS 250-350 t bollard pull.On-hire daysdBollard-pull hours / yearhTypical 15-20% of on-hire hours.

Fuel

FuelMasst

Annual CO₂: 14,427.0t

Daily fuel: 14.52t/day

CO₂ per bollard-pull-hour: 48.1kg / BP-h

Changing the inputs requires JavaScript. The calculator above shows its default inputs and result. The formula, symbols, and regulatory sources are shown in the Formula section below.

Formula, assumptions, and limits

\text{CO}_2^\text{year} = \sum_j F_j \cdot C_{f,j}, \quad \text{Intensity}_\text{BP} = \frac{\text{CO}_2^\text{year} \cdot 1000}{\text{Bollard} \cdot h_\text{pull}}

Symbol	Meaning	Unit
$Bollard$	Rated bollard pull	t
$h_\text{pull}$	Hours in bollard-pull operation	h

Source: IMCA - offshore vessel operational data

In short

Fuel and CO₂ for anchor handling tug supply vessels - daily intensity and bollard-pull-hour normalisation.

Learn the theory Specialised Ship Types: Ro-ro, Reefer, Heavy-Lift