Judgment of the General Court (First Chamber) of 7 July 2021.#Irish Wind Farmers' Association Clg and Others v European Commission.#State aid – Energy sector – Irish legislation on business property taxation – Method for calculating the amount of the tax owed by fossil fuel electricity producers – Complaint from wind farm operators – Decision finding that there is no State aid – Failure to initiate the formal investigation procedure – Serious difficulties – Procedural rights of the interested parties.#Case T-680/19.