Judgment of the Court (Fifth Chamber) of 9 March 2023.#European Union Agency for the Cooperation of Energy Regulators v Aquind Ltd.#Appeal – Energy – Regulation (EC) No 714/2009 – Article 17 – Request for exemption relating to an electrical interconnector – Refusal decision from the European Union Agency for the Cooperation of Energy Regulators (ACER) – Regulation (EC) No 713/2009 – Article 19 – Board of Appeal of ACER – Intensity of the review.#Case C-46/21 P.