Opinion of Advocate General Rantos delivered on 2 June 2022.#AS Veejaam and OÜ Espo v AS Elering.#Request for a preliminary ruling from the Riigikohus.#Reference for a preliminary ruling – State aid – Renewable energy subsidy – Guidelines on State aid for environmental protection and energy 2014-2020 – Incentive effect of aid applied for after work has started on the project concerned – Article 108(3) TFEU – Obligation to notify – Consequences of breach of the obligation to notify.#Case C-470/20.