What are the major causes of power outages?
Ice and Snow
Brownouts often occur when the electrical system is over taxed with electrical customers using more power than usual due to excessive heat. Dimming or flickering lights may be a sign of a brownout and localized blackouts may soon follow. Beware of brownouts when air conditioner usage is heavy on a hot day.
Electrical Grid Failures
Grid failures describe the condition where a portion of the overall electrical distribution system fails. While this is very uncommon, it is possible when there is a catastrophic failure of equipment. The failure may be caused by old or aging equipment or by a force outside of the utility company’s immediate control like hackers or terrorists. Electrical grid failures may result in wide-spread blackouts of lengthy duration. Electrical grid failures are a worst-case scenario.