Go top
Report information

El cero de tensión acaecido en el sistema eléctrico ibérico el día 28 de Abril de 2025

The blackout that ocurred in the Iberian electricity system on 28th April, 2025

L. Rouco, E. Lobato, F.M. Echavarren

Original summary:

Este documento contiene un resumen del informe preliminar realizado por los Drs. D. Luis Rouco Rodríguez, D. Enrique Lobato Miguélez y D. Francisco M. Echavarren Cerezo, Profesores Propios de la ETS de Ingeniería ICAI, a petición de Endesa e Iberdrola, sobre los hechos y circunstancias que condujeron al cero de tensión acaecido en el sistema ibérico el día 28 de abril de 2025.
Si bien el informe preliminar realizado aborda todos los hechos y circunstancias que condujeron al cero de tensión, este resumen pretende traer a la atención del lector análisis novedosos que ofrecen respuestas fundamentadas a interrogantes no resueltos que surgen del estudio atento de los informes emitidos. Para la realización del informe, los autores han contado con datos no públicos proporcionados por Endesa e Iberdrola. [...]


English summary:

This document contains a summary of the report carried out by Drs. Luis Rouco Rodríguez, Enrique Lobato Miguélez, and Francisco M. Echavarren Cerezo, Professors of the School of Engineering, at the request of Endesa and Iberdrola, on the facts and circumstances that led to the blackout in the Iberian system on 28th April 2025.
Although the report addresses all the facts and circumstances that led to the blackout, this summary aims to bring to the reader's attention novel analyses that offer well-founded answers to unresolved questions arising from a careful study of the reports issued. In preparing the report, the authors have used non-public data provided by Endesa and Iberdrola.[...]


Keywords: Voltage collapse; Voltage control; Ancillary services


Publication date: 29-Sep-2025

Citation:
L. Rouco, E. Lobato, F.M. Echavarren, "El cero de tensión acaecido en el sistema eléctrico ibérico el día 28 de Abril de 2025". Sep/2025. IIT-25-411I

    Research topics:
  • Steady-state: Load flows, analysis of power system constraints, optimal load flows, voltage control ancilliary service,short-circuits, protections in transmission and ditribution networks
  • Stability: Large disturbance stability, tuning of frequency loadshedding schemes, excitation control, small disturbance stability, tuning of power system stabilizers, identification of AVR and governor models
    Research groups:
  • Instituto de Investigación Tecnológica (IIT)
    ODS:
  • Goal 7: Affordable and clean energy
  • Goal 9: Industry, innovation and infrastructure
pdfDownload report