Case C-377/20: Judgment of the Court (Fifth Chamber) of 12 May 2022 (Request for a preliminary ruling from the Consiglio di Stato — Italy) — Servizio Elettrico Nazionale SpA, ENEL SpA, Enel Energia SpA v Autorità Garante della Concorrenza e del Mercato and Others (Reference for a preliminary ruling — Competition — Dominant position — Abuse — Article 102 TFEU — Effect of a practice on the well-being of consumers and on the structure of the market — Exclusionary abuse — Whether the practice is capable of having an exclusionary effect — Use of methods other than those coming within the scope of competition on the merits — Hypothetical as-efficient competitor unable to replicate the practice — Existence of an anticompetitive intent — Opening up of the market for the sale of electricity to competition — Transfer of commercially sensitive information within a group of undertakings in order to preserve a dominant position inherited from a statutory monopoly — Imputability of a subsidiary’s conduct to the parent company)