Order of the Court (Sixth Chamber) of 29 May 2024.#Warmeston OÜ v Elering AS.#Reference for a preliminary ruling – Article 99 of the Rules of Procedure of the Court of Justice – State aid – Renewable energy subsidy – Construction of a combined heat and power installation – Decision C(2017) 8456 final – Amendments to the Estonian support scheme for electricity produced from renewable sources and efficient cogeneration – Recitals 42 and 43 – Concepts of ‘project’ and ‘start of works’ – Type and intensity of the scrutiny that must be conducted by the competent national authority.#Case C-446/23.