Judgment of the Court (Fifth Chamber) of 30 March 2023.#Green Network SpA v SF and Others.#Request for a preliminary ruling from the Consiglio di Stato.#Reference for a preliminary ruling – Internal market in electricity – Directive 2009/72/EC – Article 37 – Annex I – Duties and powers of the national regulatory authority – Consumer protection – Administrative management costs – Power of the national regulatory authority to order the repayment of sums paid by final customers pursuant to contractual terms that have been penalised by that authority.#Case C-5/22.