Joined Cases C-180/18, C-286/18 and C-287/18: Judgment of the Court (Tenth Chamber) of 11 July 2019 (requests for a preliminary ruling from the Consiglio di Stato — Italy) — Agrenergy Srl (C-180/18 and C-286/18), Fusignano Due Srl (C-287/18) v Ministero dello Sviluppo Economico (Reference for a preliminary ruling — Environment — Directive 2009/28/EC — Article 3(3)(a) — Promotion of the use of energy from renewable sources — Production of electricity by solar photovoltaic plants — Alteration of a support scheme — Principles of legal certainty and the protection of legitimate expectations)