Judgment of the Court (Seventh Chamber) of 7 April 2022.#Solar Ileias Bompaina AE v European Commission.#Appeal – State aid – Market for electricity generated from renewable energy sources – National legislation which allegedly has the effect of conferring an unlawful advantage on electricity suppliers – Complaint to the European Commission – Rejection decision without initiating the formal investigation procedure – Action for annulment – Regulation (EU) 2015/1589 – Article 1(h) – Concept of ‘interested party’