The outage peaked at 103,760 affected customers, with the most severe impacts concentrated in Caballito, Villa Crespo, Almagro, and La Paternal neighborhoods. Data from the National Electricity Regulatory Entity (ENRE) showed 49,040 customers without service in Villa Crespo alone at 05:30, representing the highest concentration of affected users. By 07:30, affected customers had declined to 8,098 in Almagro, 6,355 in Villa Crespo, and 5,363 in Caballito, indicating progressive restoration through network reconfiguration.
Edesur confirmed phased restoration protocols, achieving service recovery for over 70 percent of initially affected customers through technical switching operations. The utility reported 24,610 customers remained without supply at 08:00, declining from a secondary peak of 40,738 users tracked by ENRE earlier that morning. Complete normalization occurred later in the day, though exact restoration timelines varied by neighborhood.
The incident occurred during Argentina’s winter season, though no injuries were reported and medical personnel on standby did not treat any affected residents. City Police Precinct 6A maintained security perimeters while firefighters collaborated with Edesur technical crews for safe restoration procedures.
The transformer failure highlights operational risks in aging distribution infrastructure serving dense urban loads. The explosion mechanism involving two separate transformers suggests potential cascading failure modes or simultaneous stress conditions. Restoration sequencing data reveals network segmentation capabilities that allowed partial service recovery while damaged equipment remained offline. The incident provides reference data for evaluating distribution reliability in Buenos Aires’ concession areas during peak demand periods.
This article was curated and published as part of our South American energy market coverage.
