During this Monday afternoon, various power outages in the Metropolitan regionaffecting hundreds of thousands of customers who reported being without power supply.
As reported by the Superintendence of Electricity and Fuels (SEC) on its website, after 4:00 p.m. those affected exceeded 300 milbeing the communes of Puente Alto, La Florida, El Bosque, San Ramón, San Bernardo and La Granja the most affected.
As a result of this, from TransportationInform the MRI defensive driving was recommended due to traffic lights out of service.
Furthermore, the Santiago Metro initially reported delays in the network of lines 4, 4A and 5 due to voltage variation. Subsequently, the information was updated regarding the Line 5where seven stations were closedwhile on lines 4 and 4A the situation has been normalizing.
Origin of the massive power outage in the RM
Through the social networks of National Electrical Coordinator It was explained that, at 3:42 p.m., there was a massive failure that affected the Electrical Substations (SSEE) of several communes of the capital.
“The affected demand was 600 MW approximately, and have already recovered to the order of 400 MW“, they detailed.
Regarding what was reported by Enel Distribución, the company reported that there was a transmission failure beyond the power company’s control, which affected initially to 550 thousand customerswhich, after 4:00 p.m., had more than 100,000 of its users without electricity.
Regarding the electricity supply in some communes of Santiago, we inform that at 3:42 p.m. a failure occurred that affected the SSEE Florida, Andes, La Reina, Macul, Santa Elena, San Joaquín, Club Hífico, Bajos de Mena, Santa Raquel, Santa Rosa Sur, Mariscal and La… pic.twitter.com/7CTPtzr6na
— CoordinatorEléctrico (@coord_electrico) October 20, 2025
[16:05] At 3:42 p.m., a Transmission failure occurred, beyond the control of Enel Distribución, which initially affected the electricity supply of 550,000 customers. At this time, 111,600 customers remain without supply. pic.twitter.com/yT1B8xcCpm
— @Enel_Informa_CL (@Enel_Informa_CL) October 20, 2025
CAUTION (15:54) to power outage in several communes of the #RM to the minute. We warn drivers and pedestrians to travel defensively towards intersections where traffic lights are out of service. pic.twitter.com/918mHG03Lo
— TransportationInforma Metropolitan Region of Santiago (@TTISantiago) October 20, 2025
⚠️ 16:45 h | External Power Outage Update:
🔴 Service in #L5 It remains available only between Pudahuel and Vicente Valdés.
✅ #L1, #L2, #L3, #L4, #L4A y #L6 operate normally.
— Santiago Metro – #50Años (@metrodesantiago) October 20, 2025
