The reference price methodology shall comply with Article 13 of Regulation (EC) No 715/2009 and with the following requirements. It shall aim at:

1. (a)

   enabling network users to reproduce the calculation of reference prices and their accurate forecast;

2. (b)

   taking into account the actual costs incurred for the provision of transmission services considering the level of complexity of the transmission network;

3. (c)

   ensuring non-discrimination and prevent undue cross-subsidisation including by taking into account the cost allocation assessments set out in Article 5;

4. (d)

   ensuring that significant volume risk related particularly to transports across an entry-exit system is not assigned to final customers within that entry-exit system;

5. (e)

   ensuring that the resulting reference prices do not distort cross-border trade.