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In Bunker Planning, bunker prices are proposed based on purchase history, but you can change them, set up your initial quantities, and set up calculation methods for each fuel type. Fuel use is calculated by port, and you can enter quantities and prices for any bunkers you plan to receive.

To open the Bunker Planning form, do one of the following:

On a Voyage Estimate Column View or Details View menu, click Bunker Planning.
On a Voyage Estimate Details View:
- On the fuel grid, right-click a line item and then click Details.
- On the P&L Summary, click the Bunker Expenses: link.

Depending on the Vessel Type in the Voyage Estimate, columns can also appear for Sea Consumption for heating, cooling, and reliquefaction, and Port Consumption for heating, cooling, and reliquefaction, as well as IGS consumption.

Sea Consumption is calculated based on the specified consumption rate for the speed associated with the sea leg.
Port Consumption is calculated based on the time used for loading or discharging, basis SHINC, at the Load or Discharge consumption rate specified for the vessel. Additional time in port is calculated basis the vessel-specified Idle consumption rate. This additional time is Turn Time and time spent in port during weekend clauses. In addition, you can add extra time in port: The related columns are XP and Dem, which also count as Idle time.
For LNG vessels, the LNG detail tab includes additional fields for **OV Estimates only (not **TO Estimates).
- To back-calculate the optimal discharge quantity based on heel, right-click a discharge port and then click Calculate Disch Qty based on Heel.
  
  Enter the Heel desired upon arrival and then click Calculate. To save the calculated Discharge Quantity, click Save.
For Bulk carriers, there is an option for each port call to indicate whether the vessel will be using its own cranes. If not, it consumes at the Idle consumption rate.

Optimize Liftings for Cargo

For a type **OV voyage, you can optimize liftings based on bunker prices at fueling ports specified in the Voyage Estimate Itinerary. You can also take into account the freight rate of one of the cargoes on the Voyage Estimate to determine if it is more beneficial to lift more bunkers in place of that cargo or vice versa.

On the Bunker Planning form, do the following:

Select the Optimize Liftings for Cargo check box.
- To subtract the freight rate of one Cargo on the itinerary from the bunker price at the next port before the most advantageous fueling port is determined, in the field next to the check box, select a Cargo with Freight Type F.
Enter a bunker Price for each port at which you want to lift bunkers.
Enter an End Quantity greater than or equal to the safety Margin of the vessel.

The Initial Quantity is taken into account and the amount of fuel needed across all voyage legs calculates. When Prices are entered, Receive quantities automatically populate at the ports with the lowest price. Quantities are calculated such that the vessel arrives at the terminating port with a quantity equal to the specified End Quantity.

If there are multiple fueling ports (indicated by prices entered) in the itinerary, the Receive quantities are automatically populated with the amount of bunkers needed to arrive at the first fueling port so that the ROBs are equal to the safety margin of the vessel. Then, at the second fueling port, the amount of bunkers are populated such that the quantity upon arrival at the terminating port is equal to the End Quantity specified.
If you manually enter a lifting quantity, that amount appears blue and is not overridden when the calculation is run again.
The optimizer calculates in real time; that is, Receive quantities automatically adjust when you change prices.
The optimizer no longer calculates after the Voyage Estimate is fixed; it is for planning purposes only.

Use Scrubbers

When the Use Scrubbers check box is selected, low sulfur bunkers are not used for at-sea consumption within ECA zones. Instead, high sulfur ("H"-type in the Vessel) bunkers is consumed. In-port consumption still adheres to Vessel/FuelZone bunker configuration if a given port is within an ECA zone.

Fuel Zones

For Estimates that are not already using Fuel Zones to calculate bunker consumption and have unsailed ports, a Use Fuel Zones button appears in the lower left corner. To recalculate estimated bunker consumption and cost based on information entered in Fuel Zones in the IMOS Data Center, click .

If you have configured a Fuel Zone Set, you can select it, rather than the Default set, at the bottom of this form.

Related Configuration Flags

Name	Description
Enable Legacy IFO Top Off Calc CFGEnableLegacyIFOTopOffCalc	For LNG vessels, relates to the calculation of the amount of IFO (or other designated "FOE" fuel type) needed in order to accelerate to a given speed higher than the NBOG speed when in dual-fuel mode. When this config flag is enabled, this amount is calculated as the difference between (a) the IFO consumption at actual speed and (b) the FOE equivalent of the LNG consumption at the NBOG speed. When this config flag is disabled or by default, this amount is calculated as the difference between (a) the IFO consumption at actual speed and (b) the IFO consumption at NBOG speed.
Enable Voyage Estimate Init Bunker Queue CFGEnableVoyestInitBunkerQueue	When enabled, Voyage Estimates allow multiple initial lots for each bunker type, similar to the Voyage Manager. On the Bunker Planning form, the Initial Quantity field label becomes a link that, when clicked, opens the Initial Bunkers form. These lots will be defaulted from open positions, TC In delivery, and in-progress voyages. When bunker consumption exceeds the available inventory for a certain fuel type, the end price for that fuel type is used to calculate bunker costs.
Enable Scrubber Type CFGEnableScrubberType	When enabled, a scrubber drop-down menu appears on the Port, Voyage Bunkers, Bunker Planning, and Vessel forms accessed through a Voyage Estimate. On the Port and Vessel forms, the drop-down menu reflects scrubber values allowed at the port and equipped in the vessel. On the Voyage Estimate and Voyage, it reflects the scrubber type used for bunker calculations. On the Vessel form, the “Use Scrubbers” check box is replaced with the new “Scrubber Type” drop-down menu. The Fuel Zones form has two tabs to support “Scrubber” and “Non-Scrubber” configurations. These new options facilitate bunker calculations to use the IMO 2020 regulations.

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