Judgment of the Court (Eighth Chamber) of 25 January 2024.#Global NRG Kereskedelmi és Tanácsadó Zrt. v Magyar Energetikai és Közmű-szabályozási Hivatal.#Reference for a preliminary ruling – Internal market in natural gas – Directive 2009/73/EC – Article 41(17) – Natural gas transmission system – National regulatory authority – Fixing of system usage charges and connection fees – Fixing of remuneration for any services provided by the system operator – Concept of ‘a party affected by a decision of a regulatory authority’ – Appeal against that decision – Right to an effective remedy – Article 47 of the Charter of Fundamental Rights of the European Union.#Case C-277/22.