Various contract renegotiations took place between 2013 and 2015 to account for some changes that had occurred in the project up to that point. The changes covered by the first renegotiations were the reduction in pace of construction due to budget constraints of the Regional Government of Catalonia, as well as the change in construction scope that was required due to the requirement for the additional protected area for the birdlife. The renegotiations that occurred between 2013 and 2015, and the issues with financing and the protected areas for the birdlife, are described in more detail below under the heading "Key Events".

It is understood that both the Procuring Authority and Project Company are now in agreement that there will be a requirement for an additional formal renegotiation of the PPP contract at a later date, to take into account the aspects that are likely to affect the financial performance of the Project Company as the project progresses. These include:

•  Reduction in water available for irrigation. The requirement for additional protected area for the birdlife has limited the water available for irrigation to 300 GL/year, which is less than the 340 GL/year originally anticipated. Currently only 160 GL/year are being used, so this has not yet become an issue, however selling water is the key revenue source for the Project Company and so will have to be dealt with once the construction works are completed. The stakeholders interviewed anticipate that demand for water will be greater than what is available, given that the landowners will have already paid for construction of piping on their own land.

•  To ensure financial viability of the project, the Project Company relies on landowners contributing to its revenue. If the pace at which the landowners are joining the project is slower than forecast, the Project Company may want to renegotiate a further contract extension, as it is currently taking this risk.