40. Is a possible scenario that the TSO's implement the single price regime before moving into 15 minutes timeresolution? 

 Yes, this is described further in the NBM roadmap report section 3.3.

55. When we have moved to a single price model, will producers still be obliged to send production plans to the TSO? 

Yes. Production plans are still needed for operational reasons, for example to create imbalance forecast and to handle congestion management. However, when the single model is implemented, productions plans are not anymore components of the imbalance settlement.

56. Is it possible to give us some calculation examples that demonstrate the change between the present imbalance practice, and the forthcoming single price regime?

Yes. Example calculations of single price regime can be made by the TSOs. These could be presented for example in the context of NBM stakeholder reference group meetings and national stakeholder events.