Power BI Report Server Licensing with respect to number of servers

[kumar09]

Hello Power BI Community - 

We currently installed Power BI Report Server that is load balanced between two servers. We have SQL Server Enterprise Edition Liceense with Software Assurance and we are using the Product Key under this criteria for our Power BI Report Server. Is there a limit on number servers on which Power BI Report Server can be installed under this license? I mean can I incerese the capacity of my Power BI Report Server by adding more servers under this license?