@Peter Thurwachter (MINDTREE LIMITED) Thank you for your post!
"Virtual Machine" usage only is generated when failing over?
YES, cost is only applied at the time of test failover and failover.
Refer to the FAQ page - https://azure.microsoft.com/en-in/pricing/details/site-recovery/
Hope that answers your questions!
----------------------------------------------------------------------------------------------------------------------
If the response helped, do "Accept Answer" and up-vote it