16.  Unavailability Deductions

The Service Provider shall record the number of Events that have been logged with the Help Desk and/ or notified to a member of the Service Provider's staff during each Contract Month.

The total number of Failure Events (Event Categories B & C) that have been logged daily by the Contractor are then compiled on a monthly basis and used to calculate the monthly payment deductions.

Unavailability Deductions are calculated for each Operating Period.  There will normally be two Operational Periods per day.  Total Operational Periods ('TOP') are the sum for the whole year.

Each Zone within the facility is given an agreed weighting (the Zone Weighting or 'ZW') which add up to [100%] and this, together with the Event Category ('EC') determines the level of deduction.  

The deduction can be subject to a Ratchet ('R') if certain conditions apply.

The calculation is as follows:

UD = ( UCn x ZW  x EC  )       x R

            (TOP)