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Spain's grid operator disputes blackout report miscalculation

Redeia, the Spanish grid operator, disputed findings in a report by the government that claimed that the operator's failure to calculate the right mix of energy led to the massive blackout that occurred on April 28, both in Spain and Portugal.

Concha Sanchez, the Redeia operations director, also said at a press briefing held on Wednesday that the company's own investigation revealed anomalies with the disconnections of power plants from the system on April 28, despite the fact that the voltage was within the legal limits. It also found an anomalous increase in demand for transport services.

She said that in the very first seconds after the blackout a combined cycle plant, which was supposed to stabilize the system, disconnected itself when it shouldn't have.

She said, "Based on our calculations, Redeia had enough voltage control capability planned." "There would have been no blackout if conventional power plants had done their job of controlling voltage."

The Government's

A report published on Tuesday stated that Redeia’s mistake was one of several factors that hindered the grid’s ability to deal with the surge in voltage which led to the outage.

Sanchez of Redeia said that the system was "absolutely in normal condition" just before the blackout at 12 noon.

Beatriz Corredor said that Redeia would release a full report on its own about the reasons for the outage.

(source: Reuters)