After upgrading to Leap 42.1 from 13.2, I do not see a place for Power Management settings. I think there used to be something in the Configure Desktop application for KDE. Am I missing some software package I need to download ?
The same settings should be in the same place.
Are you sure you are running systemsettings5? Type that into krunner (Alt+F2) to make sure.
You cannot use the KDE4 version to modify Plasma5’s settings, and it is probably still installed if you upgraded…
‘Configure Desktop’ is ‘systemsettings5’. Where is Power Management supposed to be in the Configure Desktop application ?
Not necessarily.
systemsettings5 is “Configure Desktop”, but KDE4’s systemsettings is “Configure Desktop” too… 
Where is Power Management supposed to be in the Configure Desktop application ?
In the “Hardware” section, where it was in KDE4 too.
http://wstaw.org/m/2016/04/30/powermanagement.png
You were right. I was starting the Configure Desktop left over in my recent applications from KDE4. Once I started the correct Configure Desktop the Power Management icon was there along with others which appeared missing before.
Thanks !