[redxii]

If you give the user full control of the following registry keys:

Power Scheme editing works without giving the user full admin rights on the
machine
HKEY LOCAL MACHINE\Software\Microsoft\Windows\CurrentVersion\ControlsFolder\
PowerCfg\GlobalPowerPolicy

HKEY LOCAL MACHINE\Software\Microsoft\Windows\CurrentVersion\ControlsFolder\
PowerCfg\PowerPolicies

thanks