Case C-429/20 P: 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’ — Inadmissibility)