The National Markets and Competition Commission (CNMC) has launched a new sanctioning file related to the electricity connection system of Huéneja, in the province of Granada, for an infraction classified as serious in the context of the electricity blackout registered on April 28, 2025.
As the regulator details, the procedure was opened on May 13 for possible violations of article 64.15, 16, and 17, although without any risk to the guarantee of supply or serious damage being appreciated. The CNMC has a maximum period of 18 months to issue a resolution.
With this new case, there are now 66 informative files that the authority chaired by Cani Fernández has initiated in relation to the electricity blackout of April 28, 2025.
The CNMC has directed these procedures against both the system operator, Red Eléctrica de España, and the main electricity companies, Endesa, Iberdrola, and Naturgy, in addition to other companies such as Repsol, TotalEnergies, or Bahía de Bizkaia Electricidad, among other affected parties.
In any case, the body stressed that "the initiations notified also include the investigation of practices that occurred on days or periods other than April 28, 2025, but which would also constitute indications of possible sectoral infractions detected within the framework of the incident investigation."
Likewise, the regulator insisted that "the facts subject to these procedures do not imply, in themselves, the attribution of the origin or cause of the blackout to the affected companies, given that the incident responded to a multifactorial origin." Similarly, the CNMC emphasized that "the initiation of these files does not prejudge the final outcome of the investigation."
The maximum duration of the procedures ranges between nine and eighteen months, depending on the severity of the possible infraction, and during that time the interested parties may submit allegations and propose the taking of evidence. For infractions considered "very serious," sanctions can reach up to 60 million euros, while in the case of "serious" ones, the maximum amount would be 6 million euros.