Key Causes of Power Outages

Downed power line
  • Trees, limbs or branches knocked down by wind, snow or ice into power lines.
  • Lightning striking a transformer or other electrical facilities. 
  • Car accidents where utility poles are knocked over or sway enough to knock the lines together and trip off the circuit. 
  • Equipment overload, especially on hot days when air conditioning usage is high, or during extremely cold weather when electric heaters are turned up throughout the electrical system. 
  • Digging too close to lines or cutting a line. 
  • Animals that contact the lines. 
  • Circuit overloads within your own home. Check your fuses and breakers first. If they continue to trip off, call a local electrician to handle the problem.

PDF When power interruptions happen – definitions for parts of the electrical system

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