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ELECTRIC DISTRIBUTION SYSTEM Banner Image

ELECTRIC DISTRIBUTION SYSTEM

ELECTRIC RELIABILITY, DELIVERED

The Oncor electric network delivers electricity from power plants to users through transmission and distribution power lines. Our electric transmission system connects power plants to substations through high-voltage transmission lines. The electric distribution network also delivers electricity from substations to homes and businesses through lower-voltage lines that include overhead wires and underground cables.

Outages Map

RESPONDING TO OUTAGES

If an outage occurs, we restore power as quickly and safely as possible. Our interactive storm center map keeps you informed about outages in your neighborhood with estimated power restoration times. The map includes the cause of the outage, if known, and the number of customers affected in your area.

VIEW INTERACTIVE MAP

Power Restoration Process

OUR POWER RESTORATION PROCESS

When a sustained outage event occurs, our top priority is to restore power safely and quickly. Oncor immediately mobilizes all available crews and equipment and will ask for assistance from other utilities in our Mutual Assistance Program, if necessary.

Oncor follows a systematic process to evaluate and restore power. Our restoration philosophy – to safely and quickly restore power to the greatest number of customers  – along with improved technology helps us determine where to go and what to repair first.

Here's how the restoration prioritization process typically works:
 

  • Transmission line power outages affect thousands of customers since these high-voltage lines deliver electricity to entire neighborhoods and businesses. Because the loss of a transmission line affects so many, this type of restoration often has the highest priority.
  • Public and critical care facilities, such as hospitals and fire stations, are also top priority since these facilities impact lives and first responders.
  • Our next priority would be outages on the distribution system that delivers power to homes and businesses affecting several hundred consumers.
  • Power outages at single residences or businesses would follow all of the above in priority.