Dallas Firefighters Tackle Major Electrical Fires at Two Oncor Substations
Specialized foam and careful coordination helped Dallas Fire-Rescue suppress a massive electrical fire at an Oncor substation in the Cedar Crest area early Sunday morning. The blaze marks the second significant substation fire in the Dallas-Fort Worth metroplex this week, following an explosion and fire at another Oncor facility in north Fort Worth just days earlier.
Dallas Substation Fire Controlled Without Power Disruption
Emergency crews were dispatched to the Oncor substation at 2405 Sargent Road at 12:46 a.m. Sunday, where they encountered a significant electrical fire. Rather than allowing the fire to burn itself out as initially planned, firefighters ultimately took a more direct approach.
“While the initial plan was to protect exposures and allow the fire to burn out, Command was able to work with Oncor representatives, and have the substation deenergized, so suppression operations could take place,” Dallas Fire-Rescue officials stated in their release.
The firefighting team deployed specialized foam from an Airport Rescue Firefighting unit to combat the electrical fire, a technique that proved effective in this high-risk scenario. Remarkably, Oncor managed to de-energize the substation without causing service interruptions to customers in the surrounding area, according to reports from local authorities.
Environmental concerns remained a priority throughout the operation. The EPA, Texas Commission on Environmental Quality, and local stormwater officials monitored potential impacts from both the smoke and firefighting suppression materials.
Earlier Fort Worth Substation Explosion
The Cedar Crest incident came just days after another Oncor substation caught fire in north Fort Worth. That blaze began Wednesday evening with what witnesses described as an explosion around 7:15 p.m. near Seventeen Lakes Boulevard and Henrietta Creek Road, as documented in video footage of the scene.
Multiple fire departments responded to the Fort Worth incident, including crews from Fort Worth, Roanoke, and Saginaw, who worked together to contain the flames. Similar to the Dallas fire, Oncor worked to cut power to the facility to enable safer firefighting operations.
What caused these substantial electrical fires at critical infrastructure sites? Investigations are still pending, with safety concerns limiting immediate access to the damaged equipment.
“Until we know that the fire will not reignite or risk spreading, we’re not going to get in there to look at the equipment until it’s safe to do so to see what caused the fire,” an Oncor representative explained regarding the Fort Worth incident.
The timing of the two substation fires has raised questions, though no official connection has been established between the incidents. Fort Worth fire crews initially responded after receiving reports of an explosion at approximately 7:15 p.m. Wednesday.
While electrical substation fires can pose significant challenges for emergency responders due to their high-voltage environments and specialized equipment, both incidents were brought under control without reported injuries or widespread power outages — a testament to the coordination between utility officials and first responders.
For now, investigations continue into both incidents as Oncor works to assess damage and determine the root causes of these significant infrastructure fires.

