Question

How the total bunker consumption and cost of a voyage calculation calculated?

Answer

Calculating the total bunker consumption and cost consists of several parts. Use the calculation rules to check the calculation of bunkers consumption and cost:

Unfrozen Voyage (Estimate Only)

Frozen Voyage (Operational)

Voyage Charter

Consumption

Fuel Oil

FO ballast * days ballast
+ FO loaded * days loaded
+ FO in port working * days loading in ports tagged as working
+ FO in port idle * days loading in ports tagged as non-working
+ FO in port idle * days waiting
+ FO in port idle * days extra in port
+ FO in port working * days discharging
+ FO in port idle * days canal
+ FO cleaning * days cleaning
+ FO heating * days heating

Diesel Oil

DO at sea * days ballast
+ DO at sea * days loaded
+ DO in port working * days loading in ports tagged as working
+ DO in port idle * days loading in ports tagged as non-working
+ DO in port idle * days waiting
+ DO in port idle * days extra in port
+ DO in port working * days discharging
+ DO in port idle * days canal

Cost

Cost for each bunker type is simply calculated as total consumption * estimated price

Consumption

The consumption for each bunker type is calculated like an estimate. However, as actual ROBs are keyed in at arrival and departure, the VMS will use a combination of estimates and actual consumption based on the ROB figures. Once all ROB figures are entered the VMS will ONLY uses the ROB figures to calculate the consumption.

Cost

All Bunker Types:
- Total consumption * actual price based on FIFO
- - total offhire consumption deductible owner * agreed price
- +/- loss / profit on bunkers against owner

Time Charter

Consumption

Fuel Oil

FO ballast * days ballast (prior to delivery/after redelivery)
+ FO in port idle * days total in port (prior to delivery/after redelivery)
+ FO in port idle * days canal (prior to delivery/after redelivery)

Diesel Oil

DO consumption = DO at sea * days ballast (prior to delivery/after redelivery)
+ DO in port idle * days total in port (prior to delivery/after redelivery)
+ DO in port idle * days canal

Cost

Cost for each bunker type is simply calculated as total consumption * estimated price

Consumption

The consumption for each bunker type is calculated like an estimate. However, as actual ROBs are keyed in at arrival and departure, the VMS will use a combination of estimates and actual consumption based on the ROB figures. Once all ROB figures are entered the VMS will ONLY uses the ROB figures to calculate the consumption.

Cost

All Bunker Types:
- Total consumption prior to delivery and after redelivery * actual price based on FIFO
- - total offhire consumption deductible owner * agreed price
- + total offhire consumption deductible charterer * agreed price
- +/- loss / profit on bunkers against owner
- +/- loss / profit on bunkers against charterer

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