SSRS 2016 Report Portal - KPI option no available in drop down
KPIs are an Enterprise feature. They are only available in the Enterprise and Developer Editions. https://msdn.microsoft.com/en-us/library/mt742500.aspx

You will also need to do two things in order to have KPIs show up in the "New" dropdown.


You must have Content Manager or Publisher privileges in the folder you will be creating the KPIs in.
You must have at least Browse privileges to a shared data source and shared data set.  These do not have to be in the same folder as where you want to publish the KPI.


Keep in mind local admin isn't a privilege/role. I set up my own SSRS 2016 instance. But I still needed to add my self(and the admin group) to the Content Manager role.