Judgment of the General Court (Fourth Chamber, Extended Composition) of 17 May 2023.#Stadtwerke Hameln Weserbergland GmbH, formerly GWS Stadtwerke Hameln GmbH v European Commission.#Competition – Concentrations – German electricity market – Decision declaring the concentration compatible with the internal market – Action for annulment – No standing to bring proceedings – No active participation – Inadmissibility.#Case T-314/20.