Let me roll this. Came across this apps after one of the buddy share this which i feel is an awesome pcs of app for turning your smart phone into a power failure notification system through email or sms. Most importantly it's free lol..
Very useful especially going away for a short trip while no body is at home.
https://play.google.com/store/apps/details?id=com.sqzsoft.powerfailuremonitorfree&hl=en
And this
https://play.google.com/store/apps/details?id=uk.co.sjbcomputerconsultants.powercut.free&hl=en