Electric carry omission in European investigations of “important oscillations” on the peninsula earlier than the blackout | Economy | EUROtoday

The electrical energy attracts their artillery in full investigation of the blackout. The predominant employer of the sector, AELEC, wherein massive names of the sector are represented comparable to Iberdrola, Endesa or EDP, has loaded this Tuesday in opposition to the omission within the European investigation of “important tension oscillations throughout the Iberian Network” each the identical morning of the vitality zero and within the earlier week. “Surprisingly, the preliminary analysis that ETSO-E, an entity that coordinates and groups the European system operators, has made the incident ignore this circumstance, and affirms that the network was in normal situation seconds before the blackout,” he criticizes in an announcement made public late within the afternoon.

The corporations which might be a part of AELEC (the outdated UNESA) declare to have “observed and informed” to the competent authorities – perceive that to Red Eléctrica de España (REE), though not quotes it – “of an extreme rise in voltage in the electricity grid that caused the automatic disconnection of generation and consumption facilities of the companies.” Before, on April 22 and 24, that they had already registered “variations that caused the automatic disconnection of generation and customer facilities”, such because the Repsol refinery in Cartagena and High Speed ​​traces of ADIF.

“From the association we want to attract attention to the fact that chronology [de Entso-E] It is limited only to the 20 seconds before the collapse and avoid a mention of the oscillations [previas] of tension, ”says Aelec. The European entity, continues the employer,“ comes to affirm that at the time of the incident there were no oscillations and the variables of the electrical system were in the normal range of operation; However, we want to show that throughout the morning the situation of the system was unstable, and in the seconds before the collapse, voltage values ​​were recorded in the electricity grid over the limits considered as emergency ”.

Sources from the Ministry for Ecological Transition declare to not really feel alluded to by the assertion of the electrical employer and underline that the third vice chairman, Sara Aagesen, has already maintained in Congress that her intention was to increase the investigation additionally to the times earlier than the blackout.

Hours earlier than

The president of Aelec, Marina Serrano, places time on the time wherein within the nodes of interconnection with the electrical energy transport community they started to note “throughout the peninsular territory” an “increase in instability” of rigidity: “From ten in the morning.” That is, greater than two and a half hours earlier than the blackout, at 12.33. “These high and oscillating tensions could be measured in various knots of the transport network whose measures are observable by AELEC companies,” Complete Serrano.

The electrical employer accompanies her statements of a number of graphs wherein rigidity peaks are noticed in at the very least two substations of Andalusia and Extremadura.

In its assertion, Aelec additionally comes out in self -defense by denying that there’s “proof” that the origin of the blackout “is in the disconnection of any generation station.” “On the contrary,” he provides, “our associates observed increases in the electricity network that was the origin that different generation and consumption facilities were disconnected”. In any case, “the loss of 2,200 MW [megavatios] It should not be the cause of any blackout, ”ditch in reference to the determine that contributed to the final day 9.” The system should endure the loss of up to 3,000 MW of generation power, according to the criteria established by the ETSO-E itself. “