Judgment of the General Court (First Chamber) of 7 September 2022.#Tirreno Power SpA v European Commission.#State aid – Italian electricity market – Capacity mechanism – Decision not to raise objections – Availability of the electricity production capacity – Modification of the capacity mechanism – Serious difficulties – Procedural rights of interested parties – Guidelines on State aid for environmental protection and energy 2014-2020.#Case T-793/19.