Judgment of the Court (Fifth Chamber) of 28 November 2024.#ENGIE Deutschland GmbH v Landesregulierungsbehörde beim Sächsischen Staatsministerium für Wirtschaft, Arbeit und Verkehr.#Request for a preliminary ruling from the Bundesgerichtshof.#Reference for a preliminary ruling – Internal market for electricity – Directive (EU) 2019/944 – Points 28 and 29 of Article 2 – Concept of ‘distribution’ – Concept of ‘distribution system operator’ – Concept of ‘distribution system’ – Articles 30 to 39 – Distribution system operation – Undertaking operating an energy facility comprising a combined heat and power plant and an electric wiring system, supplying heat, hot water and electricity to the tenants of a residential complex – Simultaneous sale of the electricity generated – National legislation exempting the operator of such a facility from the obligations of distribution system operators under that directive.#Case C-293/23.