How Power is Restored

How Power is Restored


Restoring Power to You

Carroll EMC’s power distribution system is designed, constructed, maintained and operated to maximize reliability at a reasonable cost. Sometimes, though, acts of nature and equipment failures do cause power outages.

Most outages affect a small area and have minor causes, and the power is restored quickly. Sometimes, though, storms and natural disasters cause widespread damage to the power system, and extended outages result. If this happens, Carroll EMC restores power to the greatest number of members first in order to minimize the outage time for the greatest number of people.


How Carroll EMC Restores Your Power

  1. If any high-voltage transmission lines are damaged, these must be repaired first no power can flow to the substations serving our distribution lines if the transmission lines are out of service. While these lines seldom fail, a tornado or ice storm can damage these lines. Typically, transmission line outages affect thousands of customers.
  2. Any substations without power after all transmission lines are back on must be repaired. If a substation is without power, no customers on the lines emanating from that substation can receive power.
  3. Main distribution supply lines (circuits) are checked next if the substation is energized. Crews patrol the circuits from the substation out, repairing problems on the main line and isolating (but not necessarily repairing) damage on small tap-lines. As the crews reach switches in the main line, sections of the line from the substation out are progressively energized. This method ensures that the greatest number of people on the circuit receive power as quickly as possible. Tap lines and individual service lines are not repaired at this point, so some members may see their neighbor's lights come back on, but not theirs. If your lights do not come back at the same time as your neighbor's, call Carroll EMC at 770-832-3552, option 1.
  4. After the main supply lines (circuits) are back on, the crews begin repairing tap lines off the main lines to restore power to more people. These tap lines typically serve 3 to 20 customers.
  5. After all tap lines are repaired, individual service lines are repaired.



No utility can guarantee interruptible service, so if you or a family member depends on a medical life-support device, you are responsible for providing a back-up source of power for the medical device or having a plan to evacuate to a facility that is not affected by the power outage. See Be Prepared