For the operations phase, the unitary payment is linked to availability, a minimum tonnage guarantee by the Procuring Authority and subject to payment deductions linked to the performance KPIs. Above the baseline payment, there's a cascade based on how the waste is treated (i.e. recycling or landfill), and the savings due to avoidance of landfill tax are a principal driver for the Project Company to recycle waste. A gain share mechanism exists, which allows for up to 50% of the savings due to avoiding landfill tax to be shared with the Procuring Authority. However, recently the baseline threshold has not been reached due to a fall in waste tonnage.

Availability payments are only made after the certification is issued by the lenders' technical advisers. After the facility is certified, the performance-related payments are made based on the operational performance, which is measuring the amount of waste on the basis of weighbridge tickets and evidence of activity.

Over the year, an operational model is used by the Procuring Authority to forecast the expected level of business and type of processing to estimate how the payments will be allocated. Payments made are then reconciled with evidence submitted to ensure the accuracy of revenue calculations. The final reconciliation takes place six months after year-end.