Full Breakdown
Transformer Failure Causes Widespread Power Outage in Denver Metro Area
2/3/2026, 9:29:35 PM
Overview of the Power Outage
On Sunday afternoon, a transformer failure at an Xcel Energy substation near Jewell and Abilene in Aurora led to a significant power outage affecting nearly 200,000 customers across the southeast Denver metro area. The incident, which occurred just before 3 p.m., resulted in widespread disruptions, including a 24-minute outage of 911 services in Aurora and temporary halts in operations at Denver International Airport (DIA).
Impact on Services and Operations
The power outage left approximately 195,000 Xcel Energy customers and 44,000 CORE Electric customers without electricity. Xcel Energy reported that the transformer failure caused damage to equipment, which subsequently impacted multiple substations and feeders. Although DIA experienced brief power interruptions, both of its substations remained energized due to multiple transmission feeds. Dave Matos, the maintenance administration director at DIA, described the situation as akin to a power bump at a home, requiring technicians to reset various systems.
The Aurora 911 system was particularly affected, with all incoming emergency calls being rerouted to Arapahoe County during the outage. Aurora's 911 director, Tina Buneta, noted that while the city could still handle regular calls, the inability to receive 911 calls posed a significant concern. During the peak hour of the outage, Arapahoe County received 144 calls, primarily reporting power outages rather than emergencies.
Restoration Efforts
Xcel Energy confirmed that power was restored to all affected customers by 5:47 p.m. on the same day. The company is in the process of replacing the damaged transformer. In the aftermath, the Regional Transportation District (RTD) temporarily halted light rail operations but provided shuttle buses to accommodate affected passengers.
Official Statements & Responses
Xcel Energy stated that the transformer failure disrupted the transmission system, leading to the cascading outage. The company is actively investigating the specific cause of the transformer failure. Aurora officials emphasized the importance of using 911 services only for emergencies, urging the community to be mindful during such disruptions.
Criticism & Opposition
While the immediate response to the outage was managed effectively, concerns have been raised regarding the reliability of infrastructure and emergency services during such events. Critics argue that the incident highlights vulnerabilities in the power supply and emergency response systems, prompting calls for a review of protocols and infrastructure resilience.
Conflicting Reports & Gaps
There are discrepancies regarding the exact number of customers affected, with reports indicating figures ranging from 195,000 to nearly 200,000. Additionally, while Xcel Energy has stated that power was restored by 5:47 p.m., some reports suggest that the restoration process may have varied across different areas.
Verbatim Quotes
“Every bit of Aurora's equipment, all of our operating systems, our computer-aided dispatch, our radio system, our call handling system was operating exactly as it should,” — Tina Buneta, Aurora 911 Director
“We strongly encourage the members of our community to only use 911 when you have an emergency in progress, and that is anything that is related to your immediate physical safety or the safety of others,” — Tina Buneta, Aurora 911 Director
