15.  Deductions

Deductions from the monthly unitary charge are made for each Failure Event, using the relevant payment deduction formula within the payment mechanism and as set out in the paragraphs below.

a)  Unavailability Failure = Unavailability Deduction

b)  Performance Failure = Performance Deduction

For the purpose of the calculation of Deductions, the period of Unavailability/ Performance Failure (as appropriate, eg, cleaning) is from the Notification Time for each affected Contract Day until the time a valid Rectified Notice is timed and dated.

Where there is no rectification time allowed, the Event shall be logged as a Failure Event at the Notification Time.

A full list of all Excusing Causes can be found in the definitions section of the Model Payment Mechanism (Model 8).