Almost two months after the blackout that disconnected Spain and Portugal, the government has released the technical report That analyzes what happened. The document, prepared after checking hundreds of data gigabytes, discards any external attack and points to a chain of technical errors. The decisive factor, according to the document: A network without sufficient capacity To control tension at critical moments, especially in renewable parks.
A critical fact. During the blackout, different plants were disconnected preventively when detecting overtheions. The problem is that, According to the reportseveral of these disconnections occurred before even the maximum voltage thresholds allowed by the regulations will be reached. In other words, they did not respond properly to the network conditions. As has pointed out The energy expert, Javier Blas, 22% of the renewable plants did not comply with the criteria required by current regulations.
I already demanded it. This is not a case of legal lagoon or regulatory vacuum. The report itself He has made clear that the technical demands for response to surge were already in force. European regulations –Regulation (EU) 2016/631also known as “requirements for generators” (RFG) – establishes behavior requirements for generating plants connected to the network.
By the Electric Red Operation Proceduresespecially PO 12.3 (on technical requirements of generation facilities) and PO 9 (on supply quality and safety), already included the obligation to maintain the connection against voltage variations within defined margins.
Not adapted to your own transition. The report too He has pointed out to a structural problem: the electricity grid has not evolved at the same pace than the massive renewable deployment. At the time of the blackout, 82% of the generation in operation was renewable. However, the number of synchronous centrals – fundamental to stabilize the network – was the lowest of the year. In this way, the network faced an explosive cocktail: a lot of distributed generation, little centralized control and little response capacity against critical events. A domino effect that, in just 12 seconds, led to the total disconnection of the Iberian system of the rest of Europe.
The solutions on the table. The document proposes a package of ambitious measures. Among which we find to strengthen supervision to ensure normative compliance, immediately implement a specific technical service so that renewables actively participate in the voltage control and Increase electrical interconnection with France.
Purifying responsibilities. The Government has pointed out both Electric and Electric Companies and possible responsible. From RedeiaBeatriz Corredor has responded ensures that they have not provided all the necessary information, and that the received did not have the desirable quality to clarify what happened. In addition, Corridor recalled that Red Electrica does not manage private networks or distributed control centers, and that its role is limited to guaranteeing the physical compatibility of the system with the programs that result from the electricity market.
Image | Pexels
GIPHY App Key not set. Please check settings