UPDATE 3pm: Endeavour Energy has restored power to all but 100 homes and is working to reconnect those remaining.
1.30pm: Fallen power lines at Mount Warrigal have left 1462 Endeavour Energy customers without power this afternoon.
Power lines at Madigan Boulevard were reported as down at 12.56pm on Saturday, leaving homes across the suburb without electricity.
An Endeavour Energy spokeswoman said crews were on the way to investigate the incident.
According to the Endeavour Energy website, power should be restored by 3.30pm this afternoon.