More than 24 hours after returning to normal, the causes of the blackout that brought the Spain They are still unknown. The only certainties for the moment is that it is not linked to a computer attack, nor to a human error. The government will go to the end of the matter, even if the first contradictions already emerge: for Prime Minister Pedro Sanchez the Blackout has not been caused by renewablesbut the experts say more. Just think of the REE network manager talks about collapse of the Green generation at the base of the Down. The position of the Prime Minister is understandable, considering that Madrid has invested everything on the green.
What has not gone unnoticed is that the network manager had already informed a problem two months ago that could have put the stability of the electrical system at risk, that is the increase in sun production combined with the closure of gas and nuclear systems. Interviewed by Corriere della Serathe expert Susanna Dorigoni It was categorical: “The particularly favorable Spanish authorization system led to having a large number of distributed photovoltaic systems”.
The emphasis is placed on solar systems, or rather on the “small plants that are not in the operator’s radar, which therefore does not know if the energy produced will be consumed locally or if it will be sold to the network and cannot act in case of need for detachment because there is a scarcity of demand” explained the teaching teacher of the energy of energy and the environment in Bocconi and Bicocca universities of Milan: “The increase in generation from non -programmable renewables makes more complex systems and more Vulnerable both to endogenous and exogenous events.
The oscillations in the network can be due to a imbalance between production and consumption, added Dorigoni, which underlined how at the time of collapse the production collapsed for causes still unknown. Then the expert focused on balanced in the hour of blackout between solar (60% of the mix) e wind (12%): “For the stability of the network it is crucial to also have a programmable production, which can increase or quickly decrease the output power to maintain frequency within certain limits, such as gas systems, hydroelectric and nuclear power. And the fact that the latter represented a small part of the mix has contributed to causing the extending of the blackout and delaying the remittance according to the network”. On the renewable dossier the judgment is clear: “Is it their fault? Not directly, the theme is knowing them and being able to integrate them into the mix of generation”.
In short, it will be it is necessary to clarify and providing as soon as possible so that such a disaster does not repeat itself. Politics is in pressing: the conservative Popular Party recorded today at the Spanish congress the request for an urgent auditor of the President of the Government to “give explanations on the great energy collapse”, which on Monday paralyzed Spain, and because “puts an end to the information blackout” which in his opinion is creating the executive. As reported by theHandlesources of the PP report that they have promoted a joint action of the lower chamber and the Senate to also request the hearing of the “ministers responsible for this unprecedented crisis”, which, according to the conservative party are, the owners of the ecological transition, Sara Aagecensen, of the interior, Fernando Grande Marlaska, and of the transport, Oscar Puente.
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