In politics, it doesn’t take much for the controversy to jump out. Any statement can raise a wave of reactions. It happened to Pablo Casado last Sunday, after he said in the Congress of his party in Castilla-La Mancha that solar energy cannot be emitted at night. In the networks, the discussion was unleashed: some called him ridiculous because energy can be stored, others pointed out that he was right. We have asked three experts to clarify it.