Power Outages In the event of a power outage, lines down, an electrical emergency, or if you have details relating to an outage, please contact Halton Hills Hydro Inc. using the numbers below. If this is a life threatening emergency, please call 911. Report an Outage by Telephone: 519-853-3701 Report a Power Outage Halton Hills is currently experiencing a scheduled power outage on Gibbons Pl.. The power is out from 9:00am to 11:00am. Posted: 2017-10-16 09:10:10.000000 Know your responsibilities: View information on Residential Demarcation Points.