Before use change IP in octoprint_upseventsystem/EventSystem/NutManager.py at line self.CLIENT = PyNUTClient("") and Setup nut to netserver mode
Plugin under development, working isn't ensure
Plugin which add small UPS EventSystem in OctoPrint.
This OctoPrint plugin interfaces with a UPS monitored by NUT (Network UPS Tools).
NUT must be configured by the user. This plugin does not alter NUT configuration whatsoever.
P.S. For more information read WiKi