1.108 The nature and level of Third Party Income will vary from project to project. If a sufficiently large and homogeneous sample exists, then previous sector experience could be used by Procuring Authorities as a guide to the levels of Third Party Income that might reasonably be assumed under the two different procurement methods. The nature and scope of the activities that will, under the PFI Option, transfer to the private sector should also be taken into account.
1.109 Notwithstanding this, in many instances, the level of Third Party Income estimated by Procuring Authorities will need to be supported by firm, project-specific evidence. The basis of any difference in the estimated level of Third Party Income between the two procurement methods should be explained. It is conceivable, for example, that the level of Third Party Income received by the Procuring Authority under the PFI Option is either greater or more certain than that to be expected under the Conventional Procurement Option as a result, for example, of guarantees received. In the Spreadsheet any Third Party Income to be generated is received from the first year following the end of the construction period.